[{"id":"registry-breed-count-cfa","value":45,"unit":"breeds","subject":"Cat breeds recognised/listed by CFA","asof":"2026-09-07","source":{"publisher":"Cat Fanciers' Association (CFA)","title":"Find a Breeder -- breed category dropdown","url":"https://find-a-breeder.cfa.org/","retrieved":"2026-09-07"},"method":{"type":"verbatim-quote","from":["data/registries.json#cfa"],"how":"Counted <select name=\"in_cat\"> options on find-a-breeder.cfa.org: 51 category options excluding the placeholder, of which 7 are Persian colour-division sub-options representing one breed -> 51 - 7 + 1 = 45."},"status":"verified","license":"facts-only","caveats":["cfa.org/breeds/ (https://cfa.org/breeds/) is CFA's own breed-directory page but its infinite-scroll grid is broken as of the fetch date and only ever renders 12 of the breeds; the count here comes from the find-a-breeder tool's breed dropdown instead, which is server-rendered and complete.","CFA breed list is a copyrighted compilation; only the count and the fact that Persian is one breed with seven colour divisions are recorded here, not the list itself."]},{"id":"registry-breed-count-tica","value":85,"unit":"breeds","subject":"Cat breeds recognised/listed by TICA","asof":"2026-09-07","source":{"publisher":"The International Cat Association (TICA)","title":"Browse All Breeds","url":"https://tica.org/ticas-breeds/browse-all-breeds/","retrieved":"2026-09-07"},"method":{"type":"verbatim-quote","from":["data/registries.json#tica"],"how":"Counted distinct breed-page links (a[href*=\"/breed/\"]) on TICA's Browse All Breeds page, captured via a real browser session on 2026-09-07 -> 85."},"status":"verified","license":"facts-only","caveats":["TICA lists longhair/shorthair variants of many breeds as separate pages (e.g. Bengal and Bengal Longhair), and includes non-pedigree categories (Household Cat, Household Pet Kitten) and a genetic-model page (Cherubim) among the 85 -- this is a count of pages on TICA's own browse index, not a normalized breed-standard count comparable one-to-one with CFA or FIFe.","tica.org blocks scripted HTTP clients (Cloudflare bot protection); this figure was captured via a real browser and is not mechanically re-verifiable by this repo's own scripts without repeating that browser session.","TICA breed list is a copyrighted compilation; only the count is recorded here, not the list itself."]},{"id":"registry-breed-count-fife","value":37,"unit":"breeds","subject":"Cat breeds recognised/listed by FIFe","asof":"2026-09-07","source":{"publisher":"Federation Internationale Feline (FIFe)","title":"Cat breeds","url":"https://fifeweb.org/cats/breeds/","retrieved":"2026-09-07"},"method":{"type":"verbatim-quote","from":["data/registries.json#fife"],"how":"Counted distinct https://fifeweb.org/cats/breeds/<slug>/ links on the FIFe breeds index page -> 37."},"status":"verified","license":"facts-only","caveats":["Some FIFe breed pages cover a longhair/shorthair pair or a house-cat category under one URL (FIFe's own grouping, e.g. \"British Longhair/Shorthair\"); the count is pages, matching how FIFe itself presents the roster, not a re-split into coat-length variants.","FIFe breed list is a copyrighted compilation; only the count is recorded here, not the list itself."]},{"id":"registry-breed-count-disagreement","value":48,"unit":"breeds","subject":"Spread between the largest and smallest cat-registry breed count (TICA 85, CFA 45, FIFe 37)","asof":"2026-09-07","source":{"publisher":"The International Cat Association (TICA)","title":"Browse All Breeds","url":"https://tica.org/ticas-breeds/browse-all-breeds/","retrieved":"2026-09-07"},"method":{"type":"computed","from":["registry-breed-count-cfa","registry-breed-count-tica","registry-breed-count-fife"],"how":"max(85, 45, 37) - min(...) = 48"},"status":"verified","license":"facts-only","caveats":["The three registries count breeds on different bases (TICA counts longhair/shorthair variants and non-pedigree categories as separate listings; FIFe pools some variants into one page; CFA excludes provisional breeds not yet fully recognised) -- the spread reflects real definitional differences between kennel clubs, not just recognition lag."]},{"id":"longevity-teng2024-burmese","value":14.42,"unit":"years (life expectancy at age 0)","subject":"Burmese: years (life expectancy at age 0) (Teng KT, O'Neill DG, Brodbelt DC, Church DB, Pegram C)","asof":"2026-09-07","source":{"publisher":"Journal of Feline Medicine and Surgery (SAGE)","title":"Teng KT, O'Neill DG, Brodbelt DC, Church DB, Pegram C. Life tables of annual life expectancy and risk factors for mortality in cats in the UK. J Feline Med Surg. 2024;26(5).","url":"https://doi.org/10.1177/1098612X241234211","retrieved":"2026-09-07"},"method":{"type":"verbatim-quote","from":["data/longevity-teng2024.json"],"how":"Table 6, 'Lifespan statistics for purebreed and crossbred cats (including cats without breed information) under primary veterinary care at practices participating in VetCompass in the UK in 2019'. n is number of deaths (the cohort's recorded lifespan observations), not colony size.","n":45},"status":"verified","license":"CC-BY-4.0","caveats":["Study sample n=45."]},{"id":"longevity-teng2024-birman","value":14.39,"unit":"years (life expectancy at age 0)","subject":"Birman: years (life expectancy at age 0) (Teng KT, O'Neill DG, Brodbelt DC, Church DB, Pegram C)","asof":"2026-09-07","source":{"publisher":"Journal of Feline Medicine and Surgery (SAGE)","title":"Teng KT, O'Neill DG, Brodbelt DC, Church DB, Pegram C. Life tables of annual life expectancy and risk factors for mortality in cats in the UK. J Feline Med Surg. 2024;26(5).","url":"https://doi.org/10.1177/1098612X241234211","retrieved":"2026-09-07"},"method":{"type":"verbatim-quote","from":["data/longevity-teng2024.json"],"how":"Table 6, 'Lifespan statistics for purebreed and crossbred cats (including cats without breed information) under primary veterinary care at practices participating in VetCompass in the UK in 2019'. n is number of deaths (the cohort's recorded lifespan observations), not colony size.","n":38},"status":"verified","license":"CC-BY-4.0","caveats":["Study sample n=38.","Study breed label 'Birman' does not map 1:1 onto a single roster breed (see this file's _meta.notes)."]},{"id":"longevity-teng2024-crossbred","value":11.89,"unit":"years (life expectancy at age 0)","subject":"Crossbred: years (life expectancy at age 0) (Teng KT, O'Neill DG, Brodbelt DC, Church DB, Pegram C)","asof":"2026-09-07","source":{"publisher":"Journal of Feline Medicine and Surgery (SAGE)","title":"Teng KT, O'Neill DG, Brodbelt DC, Church DB, Pegram C. Life tables of annual life expectancy and risk factors for mortality in cats in the UK. J Feline Med Surg. 2024;26(5).","url":"https://doi.org/10.1177/1098612X241234211","retrieved":"2026-09-07"},"method":{"type":"verbatim-quote","from":["data/longevity-teng2024.json"],"how":"Table 6, 'Lifespan statistics for purebreed and crossbred cats (including cats without breed information) under primary veterinary care at practices participating in VetCompass in the UK in 2019'. n is number of deaths (the cohort's recorded lifespan observations), not colony size.","n":7117},"status":"verified","license":"CC-BY-4.0","caveats":["Study sample n=7117."]},{"id":"longevity-teng2024-siamese","value":11.69,"unit":"years (life expectancy at age 0)","subject":"Siamese: years (life expectancy at age 0) (Teng KT, O'Neill DG, Brodbelt DC, Church DB, Pegram C)","asof":"2026-09-07","source":{"publisher":"Journal of Feline Medicine and Surgery (SAGE)","title":"Teng KT, O'Neill DG, Brodbelt DC, Church DB, Pegram C. Life tables of annual life expectancy and risk factors for mortality in cats in the UK. J Feline Med Surg. 2024;26(5).","url":"https://doi.org/10.1177/1098612X241234211","retrieved":"2026-09-07"},"method":{"type":"verbatim-quote","from":["data/longevity-teng2024.json"],"how":"Table 6, 'Lifespan statistics for purebreed and crossbred cats (including cats without breed information) under primary veterinary care at practices participating in VetCompass in the UK in 2019'. n is number of deaths (the cohort's recorded lifespan observations), not colony size.","n":88},"status":"verified","license":"CC-BY-4.0","caveats":["Study sample n=88."]},{"id":"longevity-teng2024-persian","value":10.93,"unit":"years (life expectancy at age 0)","subject":"Persian: years (life expectancy at age 0) (Teng KT, O'Neill DG, Brodbelt DC, Church DB, Pegram C)","asof":"2026-09-07","source":{"publisher":"Journal of Feline Medicine and Surgery (SAGE)","title":"Teng KT, O'Neill DG, Brodbelt DC, Church DB, Pegram C. Life tables of annual life expectancy and risk factors for mortality in cats in the UK. J Feline Med Surg. 2024;26(5).","url":"https://doi.org/10.1177/1098612X241234211","retrieved":"2026-09-07"},"method":{"type":"verbatim-quote","from":["data/longevity-teng2024.json"],"how":"Table 6, 'Lifespan statistics for purebreed and crossbred cats (including cats without breed information) under primary veterinary care at practices participating in VetCompass in the UK in 2019'. n is number of deaths (the cohort's recorded lifespan observations), not colony size.","n":80},"status":"verified","license":"CC-BY-4.0","caveats":["Study sample n=80."]},{"id":"longevity-teng2024-ragdoll","value":10.31,"unit":"years (life expectancy at age 0)","subject":"Ragdoll: years (life expectancy at age 0) (Teng KT, O'Neill DG, Brodbelt DC, Church DB, Pegram C)","asof":"2026-09-07","source":{"publisher":"Journal of Feline Medicine and Surgery (SAGE)","title":"Teng KT, O'Neill DG, Brodbelt DC, Church DB, Pegram C. Life tables of annual life expectancy and risk factors for mortality in cats in the UK. J Feline Med Surg. 2024;26(5).","url":"https://doi.org/10.1177/1098612X241234211","retrieved":"2026-09-07"},"method":{"type":"verbatim-quote","from":["data/longevity-teng2024.json"],"how":"Table 6, 'Lifespan statistics for purebreed and crossbred cats (including cats without breed information) under primary veterinary care at practices participating in VetCompass in the UK in 2019'. n is number of deaths (the cohort's recorded lifespan observations), not colony size.","n":69},"status":"verified","license":"CC-BY-4.0","caveats":["Study sample n=69."]},{"id":"longevity-teng2024-norwegian-forest-cat","value":9.95,"unit":"years (life expectancy at age 0)","subject":"Norwegian Forest Cat: years (life expectancy at age 0) (Teng KT, O'Neill DG, Brodbelt DC, Church DB, Pegram C)","asof":"2026-09-07","source":{"publisher":"Journal of Feline Medicine and Surgery (SAGE)","title":"Teng KT, O'Neill DG, Brodbelt DC, Church DB, Pegram C. Life tables of annual life expectancy and risk factors for mortality in cats in the UK. J Feline Med Surg. 2024;26(5).","url":"https://doi.org/10.1177/1098612X241234211","retrieved":"2026-09-07"},"method":{"type":"verbatim-quote","from":["data/longevity-teng2024.json"],"how":"Table 6, 'Lifespan statistics for purebreed and crossbred cats (including cats without breed information) under primary veterinary care at practices participating in VetCompass in the UK in 2019'. n is number of deaths (the cohort's recorded lifespan observations), not colony size.","n":15},"status":"verified","license":"CC-BY-4.0","caveats":["Study sample n=15 (small sample; treat the estimate as imprecise)."]},{"id":"longevity-teng2024-maine-coon","value":9.71,"unit":"years (life expectancy at age 0)","subject":"Maine Coon: years (life expectancy at age 0) (Teng KT, O'Neill DG, Brodbelt DC, Church DB, Pegram C)","asof":"2026-09-07","source":{"publisher":"Journal of Feline Medicine and Surgery (SAGE)","title":"Teng KT, O'Neill DG, Brodbelt DC, Church DB, Pegram C. Life tables of annual life expectancy and risk factors for mortality in cats in the UK. J Feline Med Surg. 2024;26(5).","url":"https://doi.org/10.1177/1098612X241234211","retrieved":"2026-09-07"},"method":{"type":"verbatim-quote","from":["data/longevity-teng2024.json"],"how":"Table 6, 'Lifespan statistics for purebreed and crossbred cats (including cats without breed information) under primary veterinary care at practices participating in VetCompass in the UK in 2019'. n is number of deaths (the cohort's recorded lifespan observations), not colony size.","n":69},"status":"verified","license":"CC-BY-4.0","caveats":["Study sample n=69."]},{"id":"longevity-teng2024-russian-cats","value":9.65,"unit":"years (life expectancy at age 0)","subject":"Russian cats: years (life expectancy at age 0) (Teng KT, O'Neill DG, Brodbelt DC, Church DB, Pegram C)","asof":"2026-09-07","source":{"publisher":"Journal of Feline Medicine and Surgery (SAGE)","title":"Teng KT, O'Neill DG, Brodbelt DC, Church DB, Pegram C. Life tables of annual life expectancy and risk factors for mortality in cats in the UK. J Feline Med Surg. 2024;26(5).","url":"https://doi.org/10.1177/1098612X241234211","retrieved":"2026-09-07"},"method":{"type":"verbatim-quote","from":["data/longevity-teng2024.json"],"how":"Table 6, 'Lifespan statistics for purebreed and crossbred cats (including cats without breed information) under primary veterinary care at practices participating in VetCompass in the UK in 2019'. n is number of deaths (the cohort's recorded lifespan observations), not colony size.","n":19},"status":"verified","license":"CC-BY-4.0","caveats":["Study sample n=19 (small sample; treat the estimate as imprecise).","Study breed label 'Russian cats' does not map 1:1 onto a single roster breed (see this file's _meta.notes)."]},{"id":"longevity-teng2024-british-cats","value":9.58,"unit":"years (life expectancy at age 0)","subject":"British cats: years (life expectancy at age 0) (Teng KT, O'Neill DG, Brodbelt DC, Church DB, Pegram C)","asof":"2026-09-07","source":{"publisher":"Journal of Feline Medicine and Surgery (SAGE)","title":"Teng KT, O'Neill DG, Brodbelt DC, Church DB, Pegram C. Life tables of annual life expectancy and risk factors for mortality in cats in the UK. J Feline Med Surg. 2024;26(5).","url":"https://doi.org/10.1177/1098612X241234211","retrieved":"2026-09-07"},"method":{"type":"verbatim-quote","from":["data/longevity-teng2024.json"],"how":"Table 6, 'Lifespan statistics for purebreed and crossbred cats (including cats without breed information) under primary veterinary care at practices participating in VetCompass in the UK in 2019'. n is number of deaths (the cohort's recorded lifespan observations), not colony size.","n":194},"status":"verified","license":"CC-BY-4.0","caveats":["Study sample n=194.","Study breed label 'British cats' does not map 1:1 onto a single roster breed (see this file's _meta.notes)."]},{"id":"longevity-teng2024-bengal","value":8.51,"unit":"years (life expectancy at age 0)","subject":"Bengal: years (life expectancy at age 0) (Teng KT, O'Neill DG, Brodbelt DC, Church DB, Pegram C)","asof":"2026-09-07","source":{"publisher":"Journal of Feline Medicine and Surgery (SAGE)","title":"Teng KT, O'Neill DG, Brodbelt DC, Church DB, Pegram C. Life tables of annual life expectancy and risk factors for mortality in cats in the UK. J Feline Med Surg. 2024;26(5).","url":"https://doi.org/10.1177/1098612X241234211","retrieved":"2026-09-07"},"method":{"type":"verbatim-quote","from":["data/longevity-teng2024.json"],"how":"Table 6, 'Lifespan statistics for purebreed and crossbred cats (including cats without breed information) under primary veterinary care at practices participating in VetCompass in the UK in 2019'. n is number of deaths (the cohort's recorded lifespan observations), not colony size.","n":73},"status":"verified","license":"CC-BY-4.0","caveats":["Study sample n=73."]},{"id":"longevity-teng2024-sphynx","value":6.68,"unit":"years (life expectancy at age 0)","subject":"Sphynx: years (life expectancy at age 0) (Teng KT, O'Neill DG, Brodbelt DC, Church DB, Pegram C)","asof":"2026-09-07","source":{"publisher":"Journal of Feline Medicine and Surgery (SAGE)","title":"Teng KT, O'Neill DG, Brodbelt DC, Church DB, Pegram C. Life tables of annual life expectancy and risk factors for mortality in cats in the UK. J Feline Med Surg. 2024;26(5).","url":"https://doi.org/10.1177/1098612X241234211","retrieved":"2026-09-07"},"method":{"type":"verbatim-quote","from":["data/longevity-teng2024.json"],"how":"Table 6, 'Lifespan statistics for purebreed and crossbred cats (including cats without breed information) under primary veterinary care at practices participating in VetCompass in the UK in 2019'. n is number of deaths (the cohort's recorded lifespan observations), not colony size.","n":18},"status":"verified","license":"CC-BY-4.0","caveats":["Study sample n=18 (small sample; treat the estimate as imprecise)."]},{"id":"longevity-oneill2015-birman","value":16.1,"unit":"years (median age at death)","subject":"Birman: years (median age at death) (O'Neill DG, Church DB, McGreevy PD, Thomson PC, Brodbelt DC)","asof":"2026-09-07","source":{"publisher":"Journal of Feline Medicine and Surgery (SAGE)","title":"O'Neill DG, Church DB, McGreevy PD, Thomson PC, Brodbelt DC. Longevity and mortality of cats attending primary care veterinary practices in England. J Feline Med Surg. 2015;17(2):125-133.","url":"https://doi.org/10.1177/1098612X14536176","retrieved":"2026-09-07"},"method":{"type":"verbatim-quote","from":["data/longevity-oneill2015.json"],"how":"Table 1, 'Breed longevity (breeds with >=10 study animals) for cats attending primary care veterinary practices in England ranked by median age at death' (n = 4009 total).","n":12},"status":"verified","license":"facts-only","caveats":["Study sample n=12 (small sample; treat the estimate as imprecise).","Study breed label 'Birman' does not map 1:1 onto a single roster breed (see this file's _meta.notes)."]},{"id":"longevity-oneill2015-burmese","value":14.3,"unit":"years (median age at death)","subject":"Burmese: years (median age at death) (O'Neill DG, Church DB, McGreevy PD, Thomson PC, Brodbelt DC)","asof":"2026-09-07","source":{"publisher":"Journal of Feline Medicine and Surgery (SAGE)","title":"O'Neill DG, Church DB, McGreevy PD, Thomson PC, Brodbelt DC. Longevity and mortality of cats attending primary care veterinary practices in England. J Feline Med Surg. 2015;17(2):125-133.","url":"https://doi.org/10.1177/1098612X14536176","retrieved":"2026-09-07"},"method":{"type":"verbatim-quote","from":["data/longevity-oneill2015.json"],"how":"Table 1, 'Breed longevity (breeds with >=10 study animals) for cats attending primary care veterinary practices in England ranked by median age at death' (n = 4009 total).","n":31},"status":"verified","license":"facts-only","caveats":["Study sample n=31."]},{"id":"longevity-oneill2015-siamese","value":14.2,"unit":"years (median age at death)","subject":"Siamese: years (median age at death) (O'Neill DG, Church DB, McGreevy PD, Thomson PC, Brodbelt DC)","asof":"2026-09-07","source":{"publisher":"Journal of Feline Medicine and Surgery (SAGE)","title":"O'Neill DG, Church DB, McGreevy PD, Thomson PC, Brodbelt DC. Longevity and mortality of cats attending primary care veterinary practices in England. J Feline Med Surg. 2015;17(2):125-133.","url":"https://doi.org/10.1177/1098612X14536176","retrieved":"2026-09-07"},"method":{"type":"verbatim-quote","from":["data/longevity-oneill2015.json"],"how":"Table 1, 'Breed longevity (breeds with >=10 study animals) for cats attending primary care veterinary practices in England ranked by median age at death' (n = 4009 total).","n":31},"status":"verified","license":"facts-only","caveats":["Study sample n=31."]},{"id":"longevity-oneill2015-persian","value":14.1,"unit":"years (median age at death)","subject":"Persian: years (median age at death) (O'Neill DG, Church DB, McGreevy PD, Thomson PC, Brodbelt DC)","asof":"2026-09-07","source":{"publisher":"Journal of Feline Medicine and Surgery (SAGE)","title":"O'Neill DG, Church DB, McGreevy PD, Thomson PC, Brodbelt DC. Longevity and mortality of cats attending primary care veterinary practices in England. J Feline Med Surg. 2015;17(2):125-133.","url":"https://doi.org/10.1177/1098612X14536176","retrieved":"2026-09-07"},"method":{"type":"verbatim-quote","from":["data/longevity-oneill2015.json"],"how":"Table 1, 'Breed longevity (breeds with >=10 study animals) for cats attending primary care veterinary practices in England ranked by median age at death' (n = 4009 total).","n":70},"status":"verified","license":"facts-only","caveats":["Study sample n=70."]},{"id":"longevity-oneill2015-crossbred","value":14.0,"unit":"years (median age at death)","subject":"Crossbred: years (median age at death) (O'Neill DG, Church DB, McGreevy PD, Thomson PC, Brodbelt DC)","asof":"2026-09-07","source":{"publisher":"Journal of Feline Medicine and Surgery (SAGE)","title":"O'Neill DG, Church DB, McGreevy PD, Thomson PC, Brodbelt DC. Longevity and mortality of cats attending primary care veterinary practices in England. J Feline Med Surg. 2015;17(2):125-133.","url":"https://doi.org/10.1177/1098612X14536176","retrieved":"2026-09-07"},"method":{"type":"verbatim-quote","from":["data/longevity-oneill2015.json"],"how":"Table 1, 'Breed longevity (breeds with >=10 study animals) for cats attending primary care veterinary practices in England ranked by median age at death' (n = 4009 total).","n":3621},"status":"verified","license":"facts-only","caveats":["Study sample n=3621."]},{"id":"longevity-oneill2015-british-shorthair","value":11.8,"unit":"years (median age at death)","subject":"British shorthair: years (median age at death) (O'Neill DG, Church DB, McGreevy PD, Thomson PC, Brodbelt DC)","asof":"2026-09-07","source":{"publisher":"Journal of Feline Medicine and Surgery (SAGE)","title":"O'Neill DG, Church DB, McGreevy PD, Thomson PC, Brodbelt DC. Longevity and mortality of cats attending primary care veterinary practices in England. J Feline Med Surg. 2015;17(2):125-133.","url":"https://doi.org/10.1177/1098612X14536176","retrieved":"2026-09-07"},"method":{"type":"verbatim-quote","from":["data/longevity-oneill2015.json"],"how":"Table 1, 'Breed longevity (breeds with >=10 study animals) for cats attending primary care veterinary practices in England ranked by median age at death' (n = 4009 total).","n":69},"status":"verified","license":"facts-only","caveats":["Study sample n=69."]},{"id":"longevity-oneill2015-maine-coon","value":11.0,"unit":"years (median age at death)","subject":"Maine Coon: years (median age at death) (O'Neill DG, Church DB, McGreevy PD, Thomson PC, Brodbelt DC)","asof":"2026-09-07","source":{"publisher":"Journal of Feline Medicine and Surgery (SAGE)","title":"O'Neill DG, Church DB, McGreevy PD, Thomson PC, Brodbelt DC. Longevity and mortality of cats attending primary care veterinary practices in England. J Feline Med Surg. 2015;17(2):125-133.","url":"https://doi.org/10.1177/1098612X14536176","retrieved":"2026-09-07"},"method":{"type":"verbatim-quote","from":["data/longevity-oneill2015.json"],"how":"Table 1, 'Breed longevity (breeds with >=10 study animals) for cats attending primary care veterinary practices in England ranked by median age at death' (n = 4009 total).","n":14},"status":"verified","license":"facts-only","caveats":["Study sample n=14 (small sample; treat the estimate as imprecise)."]},{"id":"longevity-oneill2015-ragdoll","value":10.1,"unit":"years (median age at death)","subject":"Ragdoll: years (median age at death) (O'Neill DG, Church DB, McGreevy PD, Thomson PC, Brodbelt DC)","asof":"2026-09-07","source":{"publisher":"Journal of Feline Medicine and Surgery (SAGE)","title":"O'Neill DG, Church DB, McGreevy PD, Thomson PC, Brodbelt DC. Longevity and mortality of cats attending primary care veterinary practices in England. J Feline Med Surg. 2015;17(2):125-133.","url":"https://doi.org/10.1177/1098612X14536176","retrieved":"2026-09-07"},"method":{"type":"verbatim-quote","from":["data/longevity-oneill2015.json"],"how":"Table 1, 'Breed longevity (breeds with >=10 study animals) for cats attending primary care veterinary practices in England ranked by median age at death' (n = 4009 total).","n":21},"status":"verified","license":"facts-only","caveats":["Study sample n=21 (small sample; treat the estimate as imprecise)."]},{"id":"longevity-oneill2015-abyssinian","value":10.0,"unit":"years (median age at death)","subject":"Abyssinian: years (median age at death) (O'Neill DG, Church DB, McGreevy PD, Thomson PC, Brodbelt DC)","asof":"2026-09-07","source":{"publisher":"Journal of Feline Medicine and Surgery (SAGE)","title":"O'Neill DG, Church DB, McGreevy PD, Thomson PC, Brodbelt DC. Longevity and mortality of cats attending primary care veterinary practices in England. J Feline Med Surg. 2015;17(2):125-133.","url":"https://doi.org/10.1177/1098612X14536176","retrieved":"2026-09-07"},"method":{"type":"verbatim-quote","from":["data/longevity-oneill2015.json"],"how":"Table 1, 'Breed longevity (breeds with >=10 study animals) for cats attending primary care veterinary practices in England ranked by median age at death' (n = 4009 total).","n":11},"status":"verified","license":"facts-only","caveats":["Study sample n=11 (small sample; treat the estimate as imprecise)."]},{"id":"longevity-oneill2015-bengal","value":7.3,"unit":"years (median age at death)","subject":"Bengal: years (median age at death) (O'Neill DG, Church DB, McGreevy PD, Thomson PC, Brodbelt DC)","asof":"2026-09-07","source":{"publisher":"Journal of Feline Medicine and Surgery (SAGE)","title":"O'Neill DG, Church DB, McGreevy PD, Thomson PC, Brodbelt DC. Longevity and mortality of cats attending primary care veterinary practices in England. J Feline Med Surg. 2015;17(2):125-133.","url":"https://doi.org/10.1177/1098612X14536176","retrieved":"2026-09-07"},"method":{"type":"verbatim-quote","from":["data/longevity-oneill2015.json"],"how":"Table 1, 'Breed longevity (breeds with >=10 study animals) for cats attending primary care veterinary practices in England ranked by median age at death' (n = 4009 total).","n":15},"status":"verified","license":"facts-only","caveats":["Study sample n=15 (small sample; treat the estimate as imprecise)."]},{"id":"longevity-montoya2023-all-us-cats-banfield-clinical-database-2013-2019","value":11.18,"unit":"years (life expectancy at birth)","subject":"Life expectancy at birth, all US cats (Banfield clinical database, 2013-2019)","asof":"2026-09-07","source":{"publisher":"Frontiers in Veterinary Science","title":"Montoya M, Morrison JA, Arrignon F, et al. Life expectancy tables for dogs and cats derived from clinical data. Front Vet Sci. 2023;10:1082102.","url":"https://doi.org/10.3389/fvets.2023.1082102","retrieved":"2026-09-07"},"method":{"type":"verbatim-quote","from":["data/longevity-montoya2023.json"],"how":"Values stated in the article body text (this study's numbered data tables render as images in the fetched HTML, so figures are the sentences stating them, not a table extraction). No per-breed cat breakdown is given by this study -- only species-level and purebred-vs-mixed-breed."},"status":"verified","license":"CC-BY-4.0","caveats":["95% CI 11.16-11.2 years."]},{"id":"longevity-montoya2023-purebred-cats-banfield-clinical-database-2013-2019","value":11.54,"unit":"years (life expectancy at birth)","subject":"Life expectancy at birth, purebred cats (Banfield clinical database, 2013-2019)","asof":"2026-09-07","source":{"publisher":"Frontiers in Veterinary Science","title":"Montoya M, Morrison JA, Arrignon F, et al. Life expectancy tables for dogs and cats derived from clinical data. Front Vet Sci. 2023;10:1082102.","url":"https://doi.org/10.3389/fvets.2023.1082102","retrieved":"2026-09-07"},"method":{"type":"verbatim-quote","from":["data/longevity-montoya2023.json"],"how":"Values stated in the article body text (this study's numbered data tables render as images in the fetched HTML, so figures are the sentences stating them, not a table extraction). No per-breed cat breakdown is given by this study -- only species-level and purebred-vs-mixed-breed."},"status":"verified","license":"CC-BY-4.0","caveats":["95% CI 11.48-11.6 years."]},{"id":"longevity-montoya2023-mixed-breed-cats-banfield-clinical-database-2013-2019","value":11.12,"unit":"years (life expectancy at birth)","subject":"Life expectancy at birth, mixed-breed cats (Banfield clinical database, 2013-2019)","asof":"2026-09-07","source":{"publisher":"Frontiers in Veterinary Science","title":"Montoya M, Morrison JA, Arrignon F, et al. Life expectancy tables for dogs and cats derived from clinical data. Front Vet Sci. 2023;10:1082102.","url":"https://doi.org/10.3389/fvets.2023.1082102","retrieved":"2026-09-07"},"method":{"type":"verbatim-quote","from":["data/longevity-montoya2023.json"],"how":"Values stated in the article body text (this study's numbered data tables render as images in the fetched HTML, so figures are the sentences stating them, not a table extraction). No per-breed cat breakdown is given by this study -- only species-level and purebred-vs-mixed-breed."},"status":"verified","license":"CC-BY-4.0","caveats":["95% CI 11.09-11.14 years."]},{"id":"headline-longest-lived-breed-longevity-teng2024","value":14.42,"unit":"years","subject":"Longest Lived breed, Teng 2024 (VetCompass UK) life expectancy at age 0: Burmese","asof":"2026-09-07","source":{"publisher":"Journal of Feline Medicine and Surgery (SAGE)","title":"Teng KT, O'Neill DG, Brodbelt DC, Church DB, Pegram C. Life tables of annual life expectancy and risk factors for mortality in cats in the UK. J Feline Med Surg. 2024;26(5).","url":"https://doi.org/10.1177/1098612X241234211","retrieved":"2026-09-07"},"method":{"type":"computed","from":["data/longevity-teng2024.json"],"how":"max of life_expectancy_years across breeds in this study's own per-breed table.","n":45},"status":"verified","license":"CC-BY-4.0","caveats":["Only breeds this study reports (>=15 study animals per the study's own inclusion floor) are eligible -- not a claim about every breed that exists."]},{"id":"headline-shortest-lived-breed-longevity-teng2024","value":6.68,"unit":"years","subject":"Shortest Lived breed, Teng 2024 (VetCompass UK) life expectancy at age 0: Sphynx","asof":"2026-09-07","source":{"publisher":"Journal of Feline Medicine and Surgery (SAGE)","title":"Teng KT, O'Neill DG, Brodbelt DC, Church DB, Pegram C. Life tables of annual life expectancy and risk factors for mortality in cats in the UK. J Feline Med Surg. 2024;26(5).","url":"https://doi.org/10.1177/1098612X241234211","retrieved":"2026-09-07"},"method":{"type":"computed","from":["data/longevity-teng2024.json"],"how":"min of life_expectancy_years across breeds in this study's own per-breed table.","n":18},"status":"verified","license":"CC-BY-4.0","caveats":["Only breeds this study reports (>=15 study animals per the study's own inclusion floor) are eligible -- not a claim about every breed that exists."]},{"id":"headline-longest-lived-breed-longevity-oneill2015","value":16.1,"unit":"years","subject":"Longest Lived breed, O'Neill 2015 (VetCompass England) median age at death: Birman","asof":"2026-09-07","source":{"publisher":"Journal of Feline Medicine and Surgery (SAGE)","title":"O'Neill DG, Church DB, McGreevy PD, Thomson PC, Brodbelt DC. Longevity and mortality of cats attending primary care veterinary practices in England. J Feline Med Surg. 2015;17(2):125-133.","url":"https://doi.org/10.1177/1098612X14536176","retrieved":"2026-09-07"},"method":{"type":"computed","from":["data/longevity-oneill2015.json"],"how":"max of median_years across breeds in this study's own per-breed table.","n":12},"status":"verified","license":"facts-only","caveats":["Only breeds this study reports (>=11 study animals per the study's own inclusion floor) are eligible -- not a claim about every breed that exists."]},{"id":"headline-shortest-lived-breed-longevity-oneill2015","value":7.3,"unit":"years","subject":"Shortest Lived breed, O'Neill 2015 (VetCompass England) median age at death: Bengal","asof":"2026-09-07","source":{"publisher":"Journal of Feline Medicine and Surgery (SAGE)","title":"O'Neill DG, Church DB, McGreevy PD, Thomson PC, Brodbelt DC. Longevity and mortality of cats attending primary care veterinary practices in England. 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J Feline Med Surg. 2015;17(2):125-133.","url":"https://doi.org/10.1177/1098612X14536176","retrieved":"2026-09-07"},"method":{"type":"verbatim-quote","from":["data/mortality-oneill2015.json"],"how":"Table 2, 'Attributed causes of mortality (top 20) specified in the clinical notes (n = 3309) in cats of all ages attending primary care veterinary practices in England'.","n":405},"status":"verified","license":"facts-only","caveats":["Percent is of the 3,309 deaths (82.5% of 4,009) with a cause specified in the clinical notes, not of all deaths."]},{"id":"cause-of-death-oneill2015-renal-disorder","value":12.1,"unit":"percent of deaths with a specified cause","subject":"Renal disorder: rank #2 attributed cause of death, cats of all ages (O'Neill 2015, VetCompass England)","asof":"2026-09-07","source":{"publisher":"Journal of Feline Medicine and Surgery (SAGE)","title":"O'Neill DG, Church DB, McGreevy PD, Thomson PC, Brodbelt DC. Longevity and mortality of cats attending primary care veterinary practices in England. J Feline Med Surg. 2015;17(2):125-133.","url":"https://doi.org/10.1177/1098612X14536176","retrieved":"2026-09-07"},"method":{"type":"verbatim-quote","from":["data/mortality-oneill2015.json"],"how":"Table 2, 'Attributed causes of mortality (top 20) specified in the clinical notes (n = 3309) in cats of all ages attending primary care veterinary practices in England'.","n":399},"status":"verified","license":"facts-only","caveats":["Percent is of the 3,309 deaths (82.5% of 4,009) with a cause specified in the clinical notes, not of all deaths."]},{"id":"cause-of-death-oneill2015-non-specific-illness","value":11.2,"unit":"percent of deaths with a specified cause","subject":"Non-specific illness: rank #3 attributed cause of death, cats of all ages (O'Neill 2015, VetCompass England)","asof":"2026-09-07","source":{"publisher":"Journal of Feline Medicine and Surgery (SAGE)","title":"O'Neill DG, Church DB, McGreevy PD, Thomson PC, Brodbelt DC. 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J Feline Med Surg. 2015;17(2):125-133.","url":"https://doi.org/10.1177/1098612X14536176","retrieved":"2026-09-07"},"method":{"type":"verbatim-quote","from":["data/mortality-oneill2015.json"],"how":"Table 2, 'Attributed causes of mortality (top 20) specified in the clinical notes (n = 3309) in cats of all ages attending primary care veterinary practices in England'.","n":370},"status":"verified","license":"facts-only","caveats":["Percent is of the 3,309 deaths (82.5% of 4,009) with a cause specified in the clinical notes, not of all deaths."]},{"id":"cause-of-death-oneill2015-neoplasia","value":10.8,"unit":"percent of deaths with a specified cause","subject":"Neoplasia: rank #4 attributed cause of death, cats of all ages (O'Neill 2015, VetCompass England)","asof":"2026-09-07","source":{"publisher":"Journal of Feline Medicine and Surgery (SAGE)","title":"O'Neill DG, Church DB, McGreevy PD, Thomson PC, Brodbelt DC. 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J Feline Med Surg. 2015;17(2):125-133.","url":"https://doi.org/10.1177/1098612X14536176","retrieved":"2026-09-07"},"method":{"type":"verbatim-quote","from":["data/mortality-oneill2015.json"],"how":"Table 2, 'Attributed causes of mortality (top 20) specified in the clinical notes (n = 3309) in cats of all ages attending primary care veterinary practices in England'.","n":356},"status":"verified","license":"facts-only","caveats":["Percent is of the 3,309 deaths (82.5% of 4,009) with a cause specified in the clinical notes, not of all deaths."]},{"id":"cause-of-death-oneill2015-mass-lesion-disorder","value":10.2,"unit":"percent of deaths with a specified cause","subject":"Mass lesion disorder: rank #5 attributed cause of death, cats of all ages (O'Neill 2015, VetCompass England)","asof":"2026-09-07","source":{"publisher":"Journal of Feline Medicine and Surgery (SAGE)","title":"O'Neill DG, Church DB, McGreevy PD, Thomson PC, Brodbelt DC. 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J Feline Med Surg. 2015;17(2):125-133.","url":"https://doi.org/10.1177/1098612X14536176","retrieved":"2026-09-07"},"method":{"type":"verbatim-quote","from":["data/mortality-oneill2015.json"],"how":"Table 2, 'Attributed causes of mortality (top 20) specified in the clinical notes (n = 3309) in cats of all ages attending primary care veterinary practices in England'.","n":336},"status":"verified","license":"facts-only","caveats":["Percent is of the 3,309 deaths (82.5% of 4,009) with a cause specified in the clinical notes, not of all deaths."]},{"id":"cause-of-death-oneill2015-neurological-disorder","value":7.0,"unit":"percent of deaths with a specified cause","subject":"Neurological disorder: rank #6 attributed cause of death, cats of all ages (O'Neill 2015, VetCompass England)","asof":"2026-09-07","source":{"publisher":"Journal of Feline Medicine and Surgery (SAGE)","title":"O'Neill DG, Church DB, McGreevy PD, Thomson PC, Brodbelt DC. 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J Feline Med Surg. 2015;17(2):125-133.","url":"https://doi.org/10.1177/1098612X14536176","retrieved":"2026-09-07"},"method":{"type":"verbatim-quote","from":["data/mortality-oneill2015.json"],"how":"Table 2, 'Attributed causes of mortality (top 20) specified in the clinical notes (n = 3309) in cats of all ages attending primary care veterinary practices in England'.","n":231},"status":"verified","license":"facts-only","caveats":["Percent is of the 3,309 deaths (82.5% of 4,009) with a cause specified in the clinical notes, not of all deaths."]},{"id":"cause-of-death-oneill2015-respiratory-disorder","value":5.5,"unit":"percent of deaths with a specified cause","subject":"Respiratory disorder: rank #7 attributed cause of death, cats of all ages (O'Neill 2015, VetCompass England)","asof":"2026-09-07","source":{"publisher":"Journal of Feline Medicine and Surgery (SAGE)","title":"O'Neill DG, Church DB, McGreevy PD, Thomson PC, Brodbelt DC. 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J Feline Med Surg. 2015;17(2):125-133.","url":"https://doi.org/10.1177/1098612X14536176","retrieved":"2026-09-07"},"method":{"type":"verbatim-quote","from":["data/mortality-oneill2015.json"],"how":"Table 2, 'Attributed causes of mortality (top 20) specified in the clinical notes (n = 3309) in cats of all ages attending primary care veterinary practices in England'.","n":183},"status":"verified","license":"facts-only","caveats":["Percent is of the 3,309 deaths (82.5% of 4,009) with a cause specified in the clinical notes, not of all deaths."]},{"id":"cause-of-death-oneill2015-cardiac-disease","value":4.2,"unit":"percent of deaths with a specified cause","subject":"Cardiac disease: rank #8 attributed cause of death, cats of all ages (O'Neill 2015, VetCompass England)","asof":"2026-09-07","source":{"publisher":"Journal of Feline Medicine and Surgery (SAGE)","title":"O'Neill DG, Church DB, McGreevy PD, Thomson PC, Brodbelt DC. 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J Feline Med Surg. 2015;17(2):125-133.","url":"https://doi.org/10.1177/1098612X14536176","retrieved":"2026-09-07"},"method":{"type":"verbatim-quote","from":["data/mortality-oneill2015.json"],"how":"Table 2, 'Attributed causes of mortality (top 20) specified in the clinical notes (n = 3309) in cats of all ages attending primary care veterinary practices in England'.","n":139},"status":"verified","license":"facts-only","caveats":["Percent is of the 3,309 deaths (82.5% of 4,009) with a cause specified in the clinical notes, not of all deaths."]},{"id":"cause-of-death-oneill2015-endocrine-disorder","value":3.8,"unit":"percent of deaths with a specified cause","subject":"Endocrine disorder: rank #9 attributed cause of death, cats of all ages (O'Neill 2015, VetCompass England)","asof":"2026-09-07","source":{"publisher":"Journal of Feline Medicine and Surgery (SAGE)","title":"O'Neill DG, Church DB, McGreevy PD, Thomson PC, Brodbelt DC. 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J Feline Med Surg. 2015;17(2):125-133.","url":"https://doi.org/10.1177/1098612X14536176","retrieved":"2026-09-07"},"method":{"type":"verbatim-quote","from":["data/mortality-oneill2015.json"],"how":"Table 2, 'Attributed causes of mortality (top 20) specified in the clinical notes (n = 3309) in cats of all ages attending primary care veterinary practices in England'.","n":124},"status":"verified","license":"facts-only","caveats":["Percent is of the 3,309 deaths (82.5% of 4,009) with a cause specified in the clinical notes, not of all deaths."]},{"id":"cause-of-death-oneill2015-thromboembolism","value":3.2,"unit":"percent of deaths with a specified cause","subject":"Thromboembolism: rank #10 attributed cause of death, cats of all ages (O'Neill 2015, VetCompass England)","asof":"2026-09-07","source":{"publisher":"Journal of Feline Medicine and Surgery (SAGE)","title":"O'Neill DG, Church DB, McGreevy PD, Thomson PC, Brodbelt DC. 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J Feline Med Surg. 2015;17(2):125-133.","url":"https://doi.org/10.1177/1098612X14536176","retrieved":"2026-09-07"},"method":{"type":"verbatim-quote","from":["data/mortality-oneill2015.json"],"how":"Table 2, 'Attributed causes of mortality (top 20) specified in the clinical notes (n = 3309) in cats of all ages attending primary care veterinary practices in England'.","n":106},"status":"verified","license":"facts-only","caveats":["Percent is of the 3,309 deaths (82.5% of 4,009) with a cause specified in the clinical notes, not of all deaths."]},{"id":"cause-of-death-oneill2015-enteropathy","value":3.0,"unit":"percent of deaths with a specified cause","subject":"Enteropathy: rank #11 attributed cause of death, cats of all ages (O'Neill 2015, VetCompass England)","asof":"2026-09-07","source":{"publisher":"Journal of Feline Medicine and Surgery (SAGE)","title":"O'Neill DG, Church DB, McGreevy PD, Thomson PC, Brodbelt DC. 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J Feline Med Surg. 2015;17(2):125-133.","url":"https://doi.org/10.1177/1098612X14536176","retrieved":"2026-09-07"},"method":{"type":"verbatim-quote","from":["data/mortality-oneill2015.json"],"how":"Table 2, 'Attributed causes of mortality (top 20) specified in the clinical notes (n = 3309) in cats of all ages attending primary care veterinary practices in England'.","n":98},"status":"verified","license":"facts-only","caveats":["Percent is of the 3,309 deaths (82.5% of 4,009) with a cause specified in the clinical notes, not of all deaths."]},{"id":"cause-of-death-oneill2015-hepatopathy","value":1.8,"unit":"percent of deaths with a specified cause","subject":"Hepatopathy: rank #12 attributed cause of death, cats of all ages (O'Neill 2015, VetCompass England)","asof":"2026-09-07","source":{"publisher":"Journal of Feline Medicine and Surgery (SAGE)","title":"O'Neill DG, Church DB, McGreevy PD, Thomson PC, Brodbelt DC. 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J Feline Med Surg. 2015;17(2):125-133.","url":"https://doi.org/10.1177/1098612X14536176","retrieved":"2026-09-07"},"method":{"type":"verbatim-quote","from":["data/mortality-oneill2015.json"],"how":"Table 2, 'Attributed causes of mortality (top 20) specified in the clinical notes (n = 3309) in cats of all ages attending primary care veterinary practices in England'.","n":61},"status":"verified","license":"facts-only","caveats":["Percent is of the 3,309 deaths (82.5% of 4,009) with a cause specified in the clinical notes, not of all deaths."]},{"id":"cause-of-death-oneill2015-viral-disorder","value":1.8,"unit":"percent of deaths with a specified cause","subject":"Viral disorder: rank #13 attributed cause of death, cats of all ages (O'Neill 2015, VetCompass England)","asof":"2026-09-07","source":{"publisher":"Journal of Feline Medicine and Surgery (SAGE)","title":"O'Neill DG, Church DB, McGreevy PD, Thomson PC, Brodbelt DC. 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J Feline Med Surg. 2015;17(2):125-133.","url":"https://doi.org/10.1177/1098612X14536176","retrieved":"2026-09-07"},"method":{"type":"verbatim-quote","from":["data/mortality-oneill2015.json"],"how":"Table 2, 'Attributed causes of mortality (top 20) specified in the clinical notes (n = 3309) in cats of all ages attending primary care veterinary practices in England'.","n":60},"status":"verified","license":"facts-only","caveats":["Percent is of the 3,309 deaths (82.5% of 4,009) with a cause specified in the clinical notes, not of all deaths."]},{"id":"cause-of-death-oneill2015-urinary-disorder","value":1.7,"unit":"percent of deaths with a specified cause","subject":"Urinary disorder: rank #14 attributed cause of death, cats of all ages (O'Neill 2015, VetCompass England)","asof":"2026-09-07","source":{"publisher":"Journal of Feline Medicine and Surgery (SAGE)","title":"O'Neill DG, Church DB, McGreevy PD, Thomson PC, Brodbelt DC. 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J Feline Med Surg. 2015;17(2):125-133.","url":"https://doi.org/10.1177/1098612X14536176","retrieved":"2026-09-07"},"method":{"type":"verbatim-quote","from":["data/mortality-oneill2015.json"],"how":"Table 2, 'Attributed causes of mortality (top 20) specified in the clinical notes (n = 3309) in cats of all ages attending primary care veterinary practices in England'.","n":48},"status":"verified","license":"facts-only","caveats":["Percent is of the 3,309 deaths (82.5% of 4,009) with a cause specified in the clinical notes, not of all deaths."]},{"id":"cause-of-death-oneill2015-oral-cavity-disorder","value":1.4,"unit":"percent of deaths with a specified cause","subject":"Oral cavity disorder: rank #16 attributed cause of death, cats of all ages (O'Neill 2015, VetCompass England)","asof":"2026-09-07","source":{"publisher":"Journal of Feline Medicine and Surgery (SAGE)","title":"O'Neill DG, Church DB, McGreevy PD, Thomson PC, Brodbelt DC. 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J Feline Med Surg. 2015;17(2):125-133.","url":"https://doi.org/10.1177/1098612X14536176","retrieved":"2026-09-07"},"method":{"type":"verbatim-quote","from":["data/mortality-oneill2015.json"],"how":"Table 2, 'Attributed causes of mortality (top 20) specified in the clinical notes (n = 3309) in cats of all ages attending primary care veterinary practices in England'.","n":43},"status":"verified","license":"facts-only","caveats":["Percent is of the 3,309 deaths (82.5% of 4,009) with a cause specified in the clinical notes, not of all deaths."]},{"id":"cause-of-death-oneill2015-ocular-disorder","value":1.1,"unit":"percent of deaths with a specified cause","subject":"Ocular disorder: rank #18 attributed cause of death, cats of all ages (O'Neill 2015, VetCompass England)","asof":"2026-09-07","source":{"publisher":"Journal of Feline Medicine and Surgery (SAGE)","title":"O'Neill DG, Church DB, McGreevy PD, Thomson PC, Brodbelt DC. 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J Feline Med Surg. 2015;17(2):125-133.","url":"https://doi.org/10.1177/1098612X14536176","retrieved":"2026-09-07"},"method":{"type":"verbatim-quote","from":["data/mortality-oneill2015.json"],"how":"Table 2, 'Attributed causes of mortality (top 20) specified in the clinical notes (n = 3309) in cats of all ages attending primary care veterinary practices in England'.","n":37},"status":"verified","license":"facts-only","caveats":["Percent is of the 3,309 deaths (82.5% of 4,009) with a cause specified in the clinical notes, not of all deaths."]},{"id":"cause-of-death-oneill2015-anaemia","value":1.1,"unit":"percent of deaths with a specified cause","subject":"Anaemia: rank #19 attributed cause of death, cats of all ages (O'Neill 2015, VetCompass England)","asof":"2026-09-07","source":{"publisher":"Journal of Feline Medicine and Surgery (SAGE)","title":"O'Neill DG, Church DB, McGreevy PD, Thomson PC, Brodbelt DC. Longevity and mortality of cats attending primary care veterinary practices in England. J Feline Med Surg. 2015;17(2):125-133.","url":"https://doi.org/10.1177/1098612X14536176","retrieved":"2026-09-07"},"method":{"type":"verbatim-quote","from":["data/mortality-oneill2015.json"],"how":"Table 2, 'Attributed causes of mortality (top 20) specified in the clinical notes (n = 3309) in cats of all ages attending primary care veterinary practices in England'.","n":36},"status":"verified","license":"facts-only","caveats":["Percent is of the 3,309 deaths (82.5% of 4,009) with a cause specified in the clinical notes, not of all deaths."]},{"id":"cause-of-death-oneill2015-parasitic-disorder","value":0.9,"unit":"percent of deaths with a specified cause","subject":"Parasitic disorder: rank #20 attributed cause of death, cats of all ages (O'Neill 2015, VetCompass England)","asof":"2026-09-07","source":{"publisher":"Journal of Feline Medicine and Surgery (SAGE)","title":"O'Neill DG, Church DB, McGreevy PD, Thomson PC, Brodbelt DC. Longevity and mortality of cats attending primary care veterinary practices in England. J Feline Med Surg. 2015;17(2):125-133.","url":"https://doi.org/10.1177/1098612X14536176","retrieved":"2026-09-07"},"method":{"type":"verbatim-quote","from":["data/mortality-oneill2015.json"],"how":"Table 2, 'Attributed causes of mortality (top 20) specified in the clinical notes (n = 3309) in cats of all ages attending primary care veterinary practices in England'.","n":31},"status":"verified","license":"facts-only","caveats":["Percent is of the 3,309 deaths (82.5% of 4,009) with a cause specified in the clinical notes, not of all deaths."]},{"id":"headline-top-cause-of-death-oneill2015","value":12.2,"unit":"percent of deaths with a specified cause","subject":"Top attributed cause of death in UK primary-care cats: Trauma (O'Neill 2015)","asof":"2026-09-07","source":{"publisher":"Journal of Feline Medicine and Surgery (SAGE)","title":"O'Neill DG, Church DB, McGreevy PD, Thomson PC, Brodbelt DC. Longevity and mortality of cats attending primary care veterinary practices in England. J Feline Med Surg. 2015;17(2):125-133.","url":"https://doi.org/10.1177/1098612X14536176","retrieved":"2026-09-07"},"method":{"type":"computed","from":["data/mortality-oneill2015.json"],"how":"rank #1 row of Table 2 by the study's own ranking","n":405},"status":"verified","license":"facts-only","caveats":["Trauma and renal disorder are nearly tied (12.2% vs 12.1%) -- treat this as 'among the top two', not a clear single leader."]},{"id":"cause-of-death-egenvall2009-urinary","value":20,"unit":"percent of deaths (PM%)","subject":"Urinary: diagnostic category share of deaths, Swedish insured cats (Egenvall 2009, Agria)","asof":"2026-09-07","source":{"publisher":"Journal of Veterinary Internal Medicine (Wiley)","title":"Egenvall A, Nodtvedt A, Haggstrom J, Strom Holst B, Moller L, Bonnett BN. Mortality of life-insured Swedish cats during 1999-2006: age, breed, sex, and diagnosis. J Vet Intern Med. 2009;23(6):1175-1183.","url":"https://doi.org/10.1111/j.1939-1676.2009.0396.x","retrieved":"2026-09-07"},"method":{"type":"verbatim-quote","from":["data/mortality-egenvall2009.json"],"how":"Table 1 (breed-specific age-standardized total mortality rate, ASMR per 10,000 cat-years at risk, CYAR) and Table 3 category-level rows (diagnostic category ASMR and percent of deaths, for categories with >=80 deaths).","n":907},"status":"verified","license":"facts-only","caveats":[]},{"id":"cause-of-death-egenvall2009-traumatic","value":13,"unit":"percent of deaths (PM%)","subject":"Traumatic: diagnostic category share of deaths, Swedish insured cats (Egenvall 2009, Agria)","asof":"2026-09-07","source":{"publisher":"Journal of Veterinary Internal Medicine (Wiley)","title":"Egenvall A, Nodtvedt A, Haggstrom J, Strom Holst B, Moller L, Bonnett BN. Mortality of life-insured Swedish cats during 1999-2006: age, breed, sex, and diagnosis. J Vet Intern Med. 2009;23(6):1175-1183.","url":"https://doi.org/10.1111/j.1939-1676.2009.0396.x","retrieved":"2026-09-07"},"method":{"type":"verbatim-quote","from":["data/mortality-egenvall2009.json"],"how":"Table 1 (breed-specific age-standardized total mortality rate, ASMR per 10,000 cat-years at risk, CYAR) and Table 3 category-level rows (diagnostic category ASMR and percent of deaths, for categories with >=80 deaths).","n":582},"status":"verified","license":"facts-only","caveats":[]},{"id":"cause-of-death-egenvall2009-neoplastic","value":12,"unit":"percent of deaths (PM%)","subject":"Neoplastic: diagnostic category share of deaths, Swedish insured cats (Egenvall 2009, Agria)","asof":"2026-09-07","source":{"publisher":"Journal of Veterinary Internal Medicine (Wiley)","title":"Egenvall A, Nodtvedt A, Haggstrom J, Strom Holst B, Moller L, Bonnett BN. Mortality of life-insured Swedish cats during 1999-2006: age, breed, sex, and diagnosis. J Vet Intern Med. 2009;23(6):1175-1183.","url":"https://doi.org/10.1111/j.1939-1676.2009.0396.x","retrieved":"2026-09-07"},"method":{"type":"verbatim-quote","from":["data/mortality-egenvall2009.json"],"how":"Table 1 (breed-specific age-standardized total mortality rate, ASMR per 10,000 cat-years at risk, CYAR) and Table 3 category-level rows (diagnostic category ASMR and percent of deaths, for categories with >=80 deaths).","n":528},"status":"verified","license":"facts-only","caveats":[]},{"id":"cause-of-death-egenvall2009-infections","value":10,"unit":"percent of deaths (PM%)","subject":"Infections: diagnostic category share of deaths, Swedish insured cats (Egenvall 2009, Agria)","asof":"2026-09-07","source":{"publisher":"Journal of Veterinary Internal Medicine (Wiley)","title":"Egenvall A, Nodtvedt A, Haggstrom J, Strom Holst B, Moller L, Bonnett BN. Mortality of life-insured Swedish cats during 1999-2006: age, breed, sex, and diagnosis. J Vet Intern Med. 2009;23(6):1175-1183.","url":"https://doi.org/10.1111/j.1939-1676.2009.0396.x","retrieved":"2026-09-07"},"method":{"type":"verbatim-quote","from":["data/mortality-egenvall2009.json"],"how":"Table 1 (breed-specific age-standardized total mortality rate, ASMR per 10,000 cat-years at risk, CYAR) and Table 3 category-level rows (diagnostic category ASMR and percent of deaths, for categories with >=80 deaths).","n":437},"status":"verified","license":"facts-only","caveats":[]},{"id":"cause-of-death-egenvall2009-cardiovascular","value":9,"unit":"percent of deaths (PM%)","subject":"Cardiovascular: diagnostic category share of deaths, Swedish insured cats (Egenvall 2009, Agria)","asof":"2026-09-07","source":{"publisher":"Journal of Veterinary Internal Medicine (Wiley)","title":"Egenvall A, Nodtvedt A, Haggstrom J, Strom Holst B, Moller L, Bonnett BN. Mortality of life-insured Swedish cats during 1999-2006: age, breed, sex, and diagnosis. J Vet Intern Med. 2009;23(6):1175-1183.","url":"https://doi.org/10.1111/j.1939-1676.2009.0396.x","retrieved":"2026-09-07"},"method":{"type":"verbatim-quote","from":["data/mortality-egenvall2009.json"],"how":"Table 1 (breed-specific age-standardized total mortality rate, ASMR per 10,000 cat-years at risk, CYAR) and Table 3 category-level rows (diagnostic category ASMR and percent of deaths, for categories with >=80 deaths).","n":421},"status":"verified","license":"facts-only","caveats":[]},{"id":"cause-of-death-egenvall2009-gastrointestinal","value":8,"unit":"percent of deaths (PM%)","subject":"Gastrointestinal: diagnostic category share of deaths, Swedish insured cats (Egenvall 2009, Agria)","asof":"2026-09-07","source":{"publisher":"Journal of Veterinary Internal Medicine (Wiley)","title":"Egenvall A, Nodtvedt A, Haggstrom J, Strom Holst B, Moller L, Bonnett BN. Mortality of life-insured Swedish cats during 1999-2006: age, breed, sex, and diagnosis. J Vet Intern Med. 2009;23(6):1175-1183.","url":"https://doi.org/10.1111/j.1939-1676.2009.0396.x","retrieved":"2026-09-07"},"method":{"type":"verbatim-quote","from":["data/mortality-egenvall2009.json"],"how":"Table 1 (breed-specific age-standardized total mortality rate, ASMR per 10,000 cat-years at risk, CYAR) and Table 3 category-level rows (diagnostic category ASMR and percent of deaths, for categories with >=80 deaths).","n":383},"status":"verified","license":"facts-only","caveats":[]},{"id":"cause-of-death-egenvall2009-respiratory","value":6,"unit":"percent of deaths (PM%)","subject":"Respiratory: diagnostic category share of deaths, Swedish insured cats (Egenvall 2009, Agria)","asof":"2026-09-07","source":{"publisher":"Journal of Veterinary Internal Medicine (Wiley)","title":"Egenvall A, Nodtvedt A, Haggstrom J, Strom Holst B, Moller L, Bonnett BN. Mortality of life-insured Swedish cats during 1999-2006: age, breed, sex, and diagnosis. J Vet Intern Med. 2009;23(6):1175-1183.","url":"https://doi.org/10.1111/j.1939-1676.2009.0396.x","retrieved":"2026-09-07"},"method":{"type":"verbatim-quote","from":["data/mortality-egenvall2009.json"],"how":"Table 1 (breed-specific age-standardized total mortality rate, ASMR per 10,000 cat-years at risk, CYAR) and Table 3 category-level rows (diagnostic category ASMR and percent of deaths, for categories with >=80 deaths).","n":279},"status":"verified","license":"facts-only","caveats":[]},{"id":"cause-of-death-egenvall2009-neurological","value":3,"unit":"percent of deaths (PM%)","subject":"Neurological: diagnostic category share of deaths, Swedish insured cats (Egenvall 2009, Agria)","asof":"2026-09-07","source":{"publisher":"Journal of Veterinary Internal Medicine (Wiley)","title":"Egenvall A, Nodtvedt A, Haggstrom J, Strom Holst B, Moller L, Bonnett BN. Mortality of life-insured Swedish cats during 1999-2006: age, breed, sex, and diagnosis. J Vet Intern Med. 2009;23(6):1175-1183.","url":"https://doi.org/10.1111/j.1939-1676.2009.0396.x","retrieved":"2026-09-07"},"method":{"type":"verbatim-quote","from":["data/mortality-egenvall2009.json"],"how":"Table 1 (breed-specific age-standardized total mortality rate, ASMR per 10,000 cat-years at risk, CYAR) and Table 3 category-level rows (diagnostic category ASMR and percent of deaths, for categories with >=80 deaths).","n":138},"status":"verified","license":"facts-only","caveats":[]},{"id":"cause-of-death-egenvall2009-hormonal-metabolic","value":2,"unit":"percent of deaths (PM%)","subject":"Hormonal/metabolic: diagnostic category share of deaths, Swedish insured cats (Egenvall 2009, Agria)","asof":"2026-09-07","source":{"publisher":"Journal of Veterinary Internal Medicine (Wiley)","title":"Egenvall A, Nodtvedt A, Haggstrom J, Strom Holst B, Moller L, Bonnett BN. Mortality of life-insured Swedish cats during 1999-2006: age, breed, sex, and diagnosis. J Vet Intern Med. 2009;23(6):1175-1183.","url":"https://doi.org/10.1111/j.1939-1676.2009.0396.x","retrieved":"2026-09-07"},"method":{"type":"verbatim-quote","from":["data/mortality-egenvall2009.json"],"how":"Table 1 (breed-specific age-standardized total mortality rate, ASMR per 10,000 cat-years at risk, CYAR) and Table 3 category-level rows (diagnostic category ASMR and percent of deaths, for categories with >=80 deaths).","n":98},"status":"verified","license":"facts-only","caveats":[]},{"id":"mortality-egenvall2009-abyssinian-group","value":464,"unit":"deaths per 10,000 cat-years at risk (ASMR)","subject":"Abyssinian group: age-standardized total mortality rate, Swedish insured cats (Egenvall 2009, Agria)","asof":"2026-09-07","source":{"publisher":"Journal of Veterinary Internal Medicine (Wiley)","title":"Egenvall A, Nodtvedt A, Haggstrom J, Strom Holst B, Moller L, Bonnett BN. Mortality of life-insured Swedish cats during 1999-2006: age, breed, sex, and diagnosis. J Vet Intern Med. 2009;23(6):1175-1183.","url":"https://doi.org/10.1111/j.1939-1676.2009.0396.x","retrieved":"2026-09-07"},"method":{"type":"verbatim-quote","from":["data/mortality-egenvall2009.json"],"how":"Table 1 (breed-specific age-standardized total mortality rate, ASMR per 10,000 cat-years at risk, CYAR) and Table 3 category-level rows (diagnostic category ASMR and percent of deaths, for categories with >=80 deaths).","n":202},"status":"verified","license":"facts-only","caveats":["A rate, not a life expectancy -- higher ASMR means higher yearly death risk, not necessarily a shorter median lifespan."]},{"id":"mortality-egenvall2009-bengalese","value":285,"unit":"deaths per 10,000 cat-years at risk (ASMR)","subject":"Bengalese: age-standardized total mortality rate, Swedish insured cats (Egenvall 2009, Agria)","asof":"2026-09-07","source":{"publisher":"Journal of Veterinary Internal Medicine (Wiley)","title":"Egenvall A, Nodtvedt A, Haggstrom J, Strom Holst B, Moller L, Bonnett BN. Mortality of life-insured Swedish cats during 1999-2006: age, breed, sex, and diagnosis. J Vet Intern Med. 2009;23(6):1175-1183.","url":"https://doi.org/10.1111/j.1939-1676.2009.0396.x","retrieved":"2026-09-07"},"method":{"type":"verbatim-quote","from":["data/mortality-egenvall2009.json"],"how":"Table 1 (breed-specific age-standardized total mortality rate, ASMR per 10,000 cat-years at risk, CYAR) and Table 3 category-level rows (diagnostic category ASMR and percent of deaths, for categories with >=80 deaths).","n":40},"status":"verified","license":"facts-only","caveats":["A rate, not a life expectancy -- higher ASMR means higher yearly death risk, not necessarily a shorter median lifespan.","Breed label 'Bengalese' does not map 1:1 onto a single roster breed."]},{"id":"mortality-egenvall2009-birman","value":373,"unit":"deaths per 10,000 cat-years at risk (ASMR)","subject":"Birman: age-standardized total mortality rate, Swedish insured cats (Egenvall 2009, Agria)","asof":"2026-09-07","source":{"publisher":"Journal of Veterinary Internal Medicine (Wiley)","title":"Egenvall A, Nodtvedt A, Haggstrom J, Strom Holst B, Moller L, Bonnett BN. Mortality of life-insured Swedish cats during 1999-2006: age, breed, sex, and diagnosis. J Vet Intern Med. 2009;23(6):1175-1183.","url":"https://doi.org/10.1111/j.1939-1676.2009.0396.x","retrieved":"2026-09-07"},"method":{"type":"verbatim-quote","from":["data/mortality-egenvall2009.json"],"how":"Table 1 (breed-specific age-standardized total mortality rate, ASMR per 10,000 cat-years at risk, CYAR) and Table 3 category-level rows (diagnostic category ASMR and percent of deaths, for categories with >=80 deaths).","n":906},"status":"verified","license":"facts-only","caveats":["A rate, not a life expectancy -- higher ASMR means higher yearly death risk, not necessarily a shorter median lifespan.","Breed label 'Birman' does not map 1:1 onto a single roster breed."]},{"id":"mortality-egenvall2009-domestic","value":414,"unit":"deaths per 10,000 cat-years at risk (ASMR)","subject":"Domestic: age-standardized total mortality rate, Swedish insured cats (Egenvall 2009, Agria)","asof":"2026-09-07","source":{"publisher":"Journal of Veterinary Internal Medicine (Wiley)","title":"Egenvall A, Nodtvedt A, Haggstrom J, Strom Holst B, Moller L, Bonnett BN. Mortality of life-insured Swedish cats during 1999-2006: age, breed, sex, and diagnosis. J Vet Intern Med. 2009;23(6):1175-1183.","url":"https://doi.org/10.1111/j.1939-1676.2009.0396.x","retrieved":"2026-09-07"},"method":{"type":"verbatim-quote","from":["data/mortality-egenvall2009.json"],"how":"Table 1 (breed-specific age-standardized total mortality rate, ASMR per 10,000 cat-years at risk, CYAR) and Table 3 category-level rows (diagnostic category ASMR and percent of deaths, for categories with >=80 deaths).","n":355},"status":"verified","license":"facts-only","caveats":["A rate, not a life expectancy -- higher ASMR means higher yearly death risk, not necessarily a shorter median lifespan."]},{"id":"mortality-egenvall2009-british-shorthair","value":386,"unit":"deaths per 10,000 cat-years at risk (ASMR)","subject":"British Shorthair: age-standardized total mortality rate, Swedish insured cats (Egenvall 2009, Agria)","asof":"2026-09-07","source":{"publisher":"Journal of Veterinary Internal Medicine (Wiley)","title":"Egenvall A, Nodtvedt A, Haggstrom J, Strom Holst B, Moller L, Bonnett BN. Mortality of life-insured Swedish cats during 1999-2006: age, breed, sex, and diagnosis. J Vet Intern Med. 2009;23(6):1175-1183.","url":"https://doi.org/10.1111/j.1939-1676.2009.0396.x","retrieved":"2026-09-07"},"method":{"type":"verbatim-quote","from":["data/mortality-egenvall2009.json"],"how":"Table 1 (breed-specific age-standardized total mortality rate, ASMR per 10,000 cat-years at risk, CYAR) and Table 3 category-level rows (diagnostic category ASMR and percent of deaths, for categories with >=80 deaths).","n":222},"status":"verified","license":"facts-only","caveats":["A rate, not a life expectancy -- higher ASMR means higher yearly death risk, not necessarily a shorter median lifespan."]},{"id":"mortality-egenvall2009-burma","value":387,"unit":"deaths per 10,000 cat-years at risk (ASMR)","subject":"Burma: age-standardized total mortality rate, Swedish insured cats (Egenvall 2009, Agria)","asof":"2026-09-07","source":{"publisher":"Journal of Veterinary Internal Medicine (Wiley)","title":"Egenvall A, Nodtvedt A, Haggstrom J, Strom Holst B, Moller L, Bonnett BN. Mortality of life-insured Swedish cats during 1999-2006: age, breed, sex, and diagnosis. J Vet Intern Med. 2009;23(6):1175-1183.","url":"https://doi.org/10.1111/j.1939-1676.2009.0396.x","retrieved":"2026-09-07"},"method":{"type":"verbatim-quote","from":["data/mortality-egenvall2009.json"],"how":"Table 1 (breed-specific age-standardized total mortality rate, ASMR per 10,000 cat-years at risk, CYAR) and Table 3 category-level rows (diagnostic category ASMR and percent of deaths, for categories with >=80 deaths).","n":206},"status":"verified","license":"facts-only","caveats":["A rate, not a life expectancy -- higher ASMR means higher yearly death risk, not necessarily a shorter median lifespan.","Breed label 'Burma' does not map 1:1 onto a single roster breed."]},{"id":"mortality-egenvall2009-devon-rex","value":337,"unit":"deaths per 10,000 cat-years at risk (ASMR)","subject":"Devon Rex: age-standardized total mortality rate, Swedish insured cats (Egenvall 2009, Agria)","asof":"2026-09-07","source":{"publisher":"Journal of Veterinary Internal Medicine (Wiley)","title":"Egenvall A, Nodtvedt A, Haggstrom J, Strom Holst B, Moller L, Bonnett BN. Mortality of life-insured Swedish cats during 1999-2006: age, breed, sex, and diagnosis. J Vet Intern Med. 2009;23(6):1175-1183.","url":"https://doi.org/10.1111/j.1939-1676.2009.0396.x","retrieved":"2026-09-07"},"method":{"type":"verbatim-quote","from":["data/mortality-egenvall2009.json"],"how":"Table 1 (breed-specific age-standardized total mortality rate, ASMR per 10,000 cat-years at risk, CYAR) and Table 3 category-level rows (diagnostic category ASMR and percent of deaths, for categories with >=80 deaths).","n":94},"status":"verified","license":"facts-only","caveats":["A rate, not a life expectancy -- higher ASMR means higher yearly death risk, not necessarily a shorter median lifespan."]},{"id":"mortality-egenvall2009-european-shorthair","value":464,"unit":"deaths per 10,000 cat-years at risk (ASMR)","subject":"European Shorthair: age-standardized total mortality rate, Swedish insured cats (Egenvall 2009, Agria)","asof":"2026-09-07","source":{"publisher":"Journal of Veterinary Internal Medicine (Wiley)","title":"Egenvall A, Nodtvedt A, Haggstrom J, Strom Holst B, Moller L, Bonnett BN. Mortality of life-insured Swedish cats during 1999-2006: age, breed, sex, and diagnosis. J Vet Intern Med. 2009;23(6):1175-1183.","url":"https://doi.org/10.1111/j.1939-1676.2009.0396.x","retrieved":"2026-09-07"},"method":{"type":"verbatim-quote","from":["data/mortality-egenvall2009.json"],"how":"Table 1 (breed-specific age-standardized total mortality rate, ASMR per 10,000 cat-years at risk, CYAR) and Table 3 category-level rows (diagnostic category ASMR and percent of deaths, for categories with >=80 deaths).","n":88},"status":"verified","license":"facts-only","caveats":["A rate, not a life expectancy -- higher ASMR means higher yearly death risk, not necessarily a shorter median lifespan."]},{"id":"mortality-egenvall2009-maine-coon","value":525,"unit":"deaths per 10,000 cat-years at risk (ASMR)","subject":"Maine Coon: age-standardized total mortality rate, Swedish insured cats (Egenvall 2009, Agria)","asof":"2026-09-07","source":{"publisher":"Journal of Veterinary Internal Medicine (Wiley)","title":"Egenvall A, Nodtvedt A, Haggstrom J, Strom Holst B, Moller L, Bonnett BN. Mortality of life-insured Swedish cats during 1999-2006: age, breed, sex, and diagnosis. J Vet Intern Med. 2009;23(6):1175-1183.","url":"https://doi.org/10.1111/j.1939-1676.2009.0396.x","retrieved":"2026-09-07"},"method":{"type":"verbatim-quote","from":["data/mortality-egenvall2009.json"],"how":"Table 1 (breed-specific age-standardized total mortality rate, ASMR per 10,000 cat-years at risk, CYAR) and Table 3 category-level rows (diagnostic category ASMR and percent of deaths, for categories with >=80 deaths).","n":243},"status":"verified","license":"facts-only","caveats":["A rate, not a life expectancy -- higher ASMR means higher yearly death risk, not necessarily a shorter median lifespan."]},{"id":"mortality-egenvall2009-norwegian-forest-cat","value":419,"unit":"deaths per 10,000 cat-years at risk (ASMR)","subject":"Norwegian Forest Cat: age-standardized total mortality rate, Swedish insured cats (Egenvall 2009, Agria)","asof":"2026-09-07","source":{"publisher":"Journal of Veterinary Internal Medicine (Wiley)","title":"Egenvall A, Nodtvedt A, Haggstrom J, Strom Holst B, Moller L, Bonnett BN. Mortality of life-insured Swedish cats during 1999-2006: age, breed, sex, and diagnosis. J Vet Intern Med. 2009;23(6):1175-1183.","url":"https://doi.org/10.1111/j.1939-1676.2009.0396.x","retrieved":"2026-09-07"},"method":{"type":"verbatim-quote","from":["data/mortality-egenvall2009.json"],"how":"Table 1 (breed-specific age-standardized total mortality rate, ASMR per 10,000 cat-years at risk, CYAR) and Table 3 category-level rows (diagnostic category ASMR and percent of deaths, for categories with >=80 deaths).","n":715},"status":"verified","license":"facts-only","caveats":["A rate, not a life expectancy -- higher ASMR means higher yearly death risk, not necessarily a shorter median lifespan."]},{"id":"mortality-egenvall2009-ocicat","value":378,"unit":"deaths per 10,000 cat-years at risk (ASMR)","subject":"Ocicat: age-standardized total mortality rate, Swedish insured cats (Egenvall 2009, Agria)","asof":"2026-09-07","source":{"publisher":"Journal of Veterinary Internal Medicine (Wiley)","title":"Egenvall A, Nodtvedt A, Haggstrom J, Strom Holst B, Moller L, Bonnett BN. Mortality of life-insured Swedish cats during 1999-2006: age, breed, sex, and diagnosis. J Vet Intern Med. 2009;23(6):1175-1183.","url":"https://doi.org/10.1111/j.1939-1676.2009.0396.x","retrieved":"2026-09-07"},"method":{"type":"verbatim-quote","from":["data/mortality-egenvall2009.json"],"how":"Table 1 (breed-specific age-standardized total mortality rate, ASMR per 10,000 cat-years at risk, CYAR) and Table 3 category-level rows (diagnostic category ASMR and percent of deaths, for categories with >=80 deaths).","n":51},"status":"verified","license":"facts-only","caveats":["A rate, not a life expectancy -- higher ASMR means higher yearly death risk, not necessarily a shorter median lifespan."]},{"id":"mortality-egenvall2009-other-breeds","value":437,"unit":"deaths per 10,000 cat-years at risk (ASMR)","subject":"Other breeds: age-standardized total mortality rate, Swedish insured cats (Egenvall 2009, Agria)","asof":"2026-09-07","source":{"publisher":"Journal of Veterinary Internal Medicine (Wiley)","title":"Egenvall A, Nodtvedt A, Haggstrom J, Strom Holst B, Moller L, Bonnett BN. Mortality of life-insured Swedish cats during 1999-2006: age, breed, sex, and diagnosis. J Vet Intern Med. 2009;23(6):1175-1183.","url":"https://doi.org/10.1111/j.1939-1676.2009.0396.x","retrieved":"2026-09-07"},"method":{"type":"verbatim-quote","from":["data/mortality-egenvall2009.json"],"how":"Table 1 (breed-specific age-standardized total mortality rate, ASMR per 10,000 cat-years at risk, CYAR) and Table 3 category-level rows (diagnostic category ASMR and percent of deaths, for categories with >=80 deaths).","n":131},"status":"verified","license":"facts-only","caveats":["A rate, not a life expectancy -- higher ASMR means higher yearly death risk, not necessarily a shorter median lifespan.","Breed label 'Other breeds' does not map 1:1 onto a single roster breed."]},{"id":"mortality-egenvall2009-persian-group","value":627,"unit":"deaths per 10,000 cat-years at risk (ASMR)","subject":"Persian group: age-standardized total mortality rate, Swedish insured cats (Egenvall 2009, Agria)","asof":"2026-09-07","source":{"publisher":"Journal of Veterinary Internal Medicine (Wiley)","title":"Egenvall A, Nodtvedt A, Haggstrom J, Strom Holst B, Moller L, Bonnett BN. Mortality of life-insured Swedish cats during 1999-2006: age, breed, sex, and diagnosis. J Vet Intern Med. 2009;23(6):1175-1183.","url":"https://doi.org/10.1111/j.1939-1676.2009.0396.x","retrieved":"2026-09-07"},"method":{"type":"verbatim-quote","from":["data/mortality-egenvall2009.json"],"how":"Table 1 (breed-specific age-standardized total mortality rate, ASMR per 10,000 cat-years at risk, CYAR) and Table 3 category-level rows (diagnostic category ASMR and percent of deaths, for categories with >=80 deaths).","n":2241},"status":"verified","license":"facts-only","caveats":["A rate, not a life expectancy -- higher ASMR means higher yearly death risk, not necessarily a shorter median lifespan.","Breed label 'Persian group' does not map 1:1 onto a single roster breed."]},{"id":"mortality-egenvall2009-ragdoll","value":426,"unit":"deaths per 10,000 cat-years at risk (ASMR)","subject":"Ragdoll: age-standardized total mortality rate, Swedish insured cats (Egenvall 2009, Agria)","asof":"2026-09-07","source":{"publisher":"Journal of Veterinary Internal Medicine (Wiley)","title":"Egenvall A, Nodtvedt A, Haggstrom J, Strom Holst B, Moller L, Bonnett BN. Mortality of life-insured Swedish cats during 1999-2006: age, breed, sex, and diagnosis. J Vet Intern Med. 2009;23(6):1175-1183.","url":"https://doi.org/10.1111/j.1939-1676.2009.0396.x","retrieved":"2026-09-07"},"method":{"type":"verbatim-quote","from":["data/mortality-egenvall2009.json"],"how":"Table 1 (breed-specific age-standardized total mortality rate, ASMR per 10,000 cat-years at risk, CYAR) and Table 3 category-level rows (diagnostic category ASMR and percent of deaths, for categories with >=80 deaths).","n":229},"status":"verified","license":"facts-only","caveats":["A rate, not a life expectancy -- higher ASMR means higher yearly death risk, not necessarily a shorter median lifespan."]},{"id":"mortality-egenvall2009-russian-blue","value":285,"unit":"deaths per 10,000 cat-years at risk (ASMR)","subject":"Russian Blue: age-standardized total mortality rate, Swedish insured cats (Egenvall 2009, Agria)","asof":"2026-09-07","source":{"publisher":"Journal of Veterinary Internal Medicine (Wiley)","title":"Egenvall A, Nodtvedt A, Haggstrom J, Strom Holst B, Moller L, Bonnett BN. Mortality of life-insured Swedish cats during 1999-2006: age, breed, sex, and diagnosis. J Vet Intern Med. 2009;23(6):1175-1183.","url":"https://doi.org/10.1111/j.1939-1676.2009.0396.x","retrieved":"2026-09-07"},"method":{"type":"verbatim-quote","from":["data/mortality-egenvall2009.json"],"how":"Table 1 (breed-specific age-standardized total mortality rate, ASMR per 10,000 cat-years at risk, CYAR) and Table 3 category-level rows (diagnostic category ASMR and percent of deaths, for categories with >=80 deaths).","n":78},"status":"verified","license":"facts-only","caveats":["A rate, not a life expectancy -- higher ASMR means higher yearly death risk, not necessarily a shorter median lifespan."]},{"id":"mortality-egenvall2009-siamese-group","value":663,"unit":"deaths per 10,000 cat-years at risk (ASMR)","subject":"Siamese group: age-standardized total mortality rate, Swedish insured cats (Egenvall 2009, Agria)","asof":"2026-09-07","source":{"publisher":"Journal of Veterinary Internal Medicine (Wiley)","title":"Egenvall A, Nodtvedt A, Haggstrom J, Strom Holst B, Moller L, Bonnett BN. Mortality of life-insured Swedish cats during 1999-2006: age, breed, sex, and diagnosis. J Vet Intern Med. 2009;23(6):1175-1183.","url":"https://doi.org/10.1111/j.1939-1676.2009.0396.x","retrieved":"2026-09-07"},"method":{"type":"verbatim-quote","from":["data/mortality-egenvall2009.json"],"how":"Table 1 (breed-specific age-standardized total mortality rate, ASMR per 10,000 cat-years at risk, CYAR) and Table 3 category-level rows (diagnostic category ASMR and percent of deaths, for categories with >=80 deaths).","n":458},"status":"verified","license":"facts-only","caveats":["A rate, not a life expectancy -- higher ASMR means higher yearly death risk, not necessarily a shorter median lifespan.","Breed label 'Siamese group' does not map 1:1 onto a single roster breed."]},{"id":"bites-annual-us-ed-visits-for-cat-caused-bite-sting-injuries","value":70253,"unit":"ED visits per year","subject":"Annual US ED visits for cat-caused bite/sting injuries","asof":"2026-09-07","source":{"publisher":"Wilderness & Environmental Medicine / CDC (NEISS-AIP)","title":"Langley R, Mack K, Haileyesus T, Proescholdbell S, Annest JL. National Estimates of Noncanine Bite and Sting Injuries Treated in US Hospital Emergency Departments, 2001-2010. Wilderness Environ Med. 2014;25(1):14-23.","url":"https://doi.org/10.1016/j.wem.2013.08.007","retrieved":"2026-09-07"},"method":{"type":"verbatim-quote","how":"Value stated in the Results section: 'Of the mammal-related injuries, an estimated 70,253 (95% CI, 46,601-93,906) injuries resulted from encounters with cats'.","from":["data/raw/langley2014.html"]},"status":"verified","license":"public-domain","caveats":["NEISS-AIP records the injury source as 'cat' but includes scratches as well as bites; not a pure bite count.","Nationally representative ED-visit estimate (weighted sample), not a census of all cat bites/scratches -- most are not treated in an ED."]},{"id":"bites-annual-us-ed-visits-for-dog-bites","value":323000,"unit":"ED visits per year","subject":"Annual US ED visits for dog bites","asof":"2026-09-07","source":{"publisher":"Wilderness & Environmental Medicine (quoting a separate cited study in its introduction)","title":"Langley R, Mack K, Haileyesus T, Proescholdbell S, Annest JL. National Estimates of Noncanine Bite and Sting Injuries Treated in US Hospital Emergency Departments, 2001-2010. Wilderness Environ Med. 2014;25(1):14-23.","url":"https://doi.org/10.1016/j.wem.2013.08.007","retrieved":"2026-09-07"},"method":{"type":"verbatim-quote","how":"Value stated in the Introduction: 'A recent study found an average of 323,000 dog bites treated in US hospital emergency departments (EDs) from 2005 to 2009' (citing a separate source, not independently re-verified here).","from":["data/raw/langley2014.html"]},"status":"verified","license":"public-domain","caveats":["This is a secondary citation inside the Langley 2014 paper's introduction, not that paper's own finding -- included here only to give the cat figure a same-document, like-for-like comparison point.","Different measurement window (2005-2009) than the cat figure (2001-2010 average); not a same-period ratio."]},{"id":"bites-cat-bites-judged-provoked-single-city-study","value":89.4,"unit":"percent","subject":"Cat bites judged provoked (single-city study)","asof":"2026-09-07","source":{"publisher":"Public Health Reports / CDC","title":"Patrick GR, O'Rourke KM. Dog and cat bites: epidemiologic analyses suggest different prevention strategies. Public Health Rep. 1998;113(3):252-257.","url":"https://stacks.cdc.gov/view/cdc/64641","retrieved":"2026-09-07"},"method":{"type":"verbatim-quote","how":"Abstract on the CDC Stacks record page: 'The majority of cat bites (89.4%) were provoked, with females (57.5%) and adults (68.3%) more likely to be victims than males or children. In contrast, just under half of dog bites (44.6%) were provoked...'","from":["data/raw/cdc-stacks-64641.html"]},"status":"verified","license":"public-domain","caveats":["Single city (El Paso, TX), 1995, animal-control surveillance records -- not a national figure, and 'provoked' is the reporting officer's judgment call, not a standardized clinical definition."]},{"id":"us-cat-population","value":76300000.0,"unit":"cats","subject":"Estimated total number of owned cats in the United States","asof":"2026-09-07","source":{"publisher":"American Veterinary Medical Association (AVMA)","title":"U.S. Pet Ownership Statistics (2025 AVMA Pet Ownership and Demographics Sourcebook)","url":"https://www.avma.org/resources-tools/reports-statistics/us-pet-ownership-statistics","retrieved":"2026-09-07"},"method":{"type":"verbatim-quote","from":["data/population.json"],"how":"Dogs/Cats comparison table on the AVMA pet-ownership statistics page."},"status":"verified","license":"facts-only","caveats":["Survey-based estimate (opt-in online panel, ~7,519 respondents), not a census.","Pedigree/registered cats are a small share of this total; most owned cats are not a recognised breed."]},{"id":"us-cat-owning-households-percent","value":32.6,"unit":"percent of US households","subject":"Share of US households owning at least one cat","asof":"2026-09-07","source":{"publisher":"American Veterinary Medical Association (AVMA)","title":"U.S. Pet Ownership Statistics (2025 AVMA Pet Ownership and Demographics Sourcebook)","url":"https://www.avma.org/resources-tools/reports-statistics/us-pet-ownership-statistics","retrieved":"2026-09-07"},"method":{"type":"verbatim-quote","from":["data/population.json"],"how":"Dogs/Cats comparison table on the AVMA pet-ownership statistics page."},"status":"verified","license":"facts-only","caveats":["Survey-based estimate (opt-in online panel, ~7,519 respondents), not a census.","Pedigree/registered cats are a small share of this total; most owned cats are not a recognised breed."]},{"id":"popularity-cfa-2026-rank-1","value":1,"unit":"rank (1 = most popular)","subject":"Maine Coon Cat: rank #1 in CFA's 2026 most-popular-breeds ranking","asof":"2026-09-07","source":{"publisher":"Cat Fanciers' Association (CFA)","title":"Most Popular Breeds for 2026","url":"https://cfa.org/cat-talk/most-popular-breeds-for-2026/","retrieved":"2026-09-07"},"method":{"type":"verbatim-quote","from":["data/popularity.json"],"how":"Rank and breed name from each numbered heading ('#N -- Breed: ...') on CFA's Most Popular Breeds for 2026 page. The tagline prose is CFA's copyrighted copy and is not reproduced."},"status":"verified","license":"facts-only","caveats":[]},{"id":"popularity-cfa-2026-rank-2","value":2,"unit":"rank (1 = most popular)","subject":"Ragdoll: rank #2 in CFA's 2026 most-popular-breeds ranking","asof":"2026-09-07","source":{"publisher":"Cat Fanciers' Association (CFA)","title":"Most Popular Breeds for 2026","url":"https://cfa.org/cat-talk/most-popular-breeds-for-2026/","retrieved":"2026-09-07"},"method":{"type":"verbatim-quote","from":["data/popularity.json"],"how":"Rank and breed name from each numbered heading ('#N -- Breed: ...') on CFA's Most Popular Breeds for 2026 page. The tagline prose is CFA's copyrighted copy and is not reproduced."},"status":"verified","license":"facts-only","caveats":[]},{"id":"popularity-cfa-2026-rank-3","value":3,"unit":"rank (1 = most popular)","subject":"Persian: rank #3 in CFA's 2026 most-popular-breeds ranking","asof":"2026-09-07","source":{"publisher":"Cat Fanciers' Association (CFA)","title":"Most Popular Breeds for 2026","url":"https://cfa.org/cat-talk/most-popular-breeds-for-2026/","retrieved":"2026-09-07"},"method":{"type":"verbatim-quote","from":["data/popularity.json"],"how":"Rank and breed name from each numbered heading ('#N -- Breed: ...') on CFA's Most Popular Breeds for 2026 page. The tagline prose is CFA's copyrighted copy and is not reproduced."},"status":"verified","license":"facts-only","caveats":[]},{"id":"popularity-cfa-2026-rank-4","value":4,"unit":"rank (1 = most popular)","subject":"Exotic: rank #4 in CFA's 2026 most-popular-breeds ranking","asof":"2026-09-07","source":{"publisher":"Cat Fanciers' Association (CFA)","title":"Most Popular Breeds for 2026","url":"https://cfa.org/cat-talk/most-popular-breeds-for-2026/","retrieved":"2026-09-07"},"method":{"type":"verbatim-quote","from":["data/popularity.json"],"how":"Rank and breed name from each numbered heading ('#N -- Breed: ...') on CFA's Most Popular Breeds for 2026 page. The tagline prose is CFA's copyrighted copy and is not reproduced."},"status":"verified","license":"facts-only","caveats":[]},{"id":"popularity-cfa-2026-rank-5","value":5,"unit":"rank (1 = most popular)","subject":"Devon Rex: rank #5 in CFA's 2026 most-popular-breeds ranking","asof":"2026-09-07","source":{"publisher":"Cat Fanciers' Association (CFA)","title":"Most Popular Breeds for 2026","url":"https://cfa.org/cat-talk/most-popular-breeds-for-2026/","retrieved":"2026-09-07"},"method":{"type":"verbatim-quote","from":["data/popularity.json"],"how":"Rank and breed name from each numbered heading ('#N -- Breed: ...') on CFA's Most Popular Breeds for 2026 page. The tagline prose is CFA's copyrighted copy and is not reproduced."},"status":"verified","license":"facts-only","caveats":[]},{"id":"popularity-cfa-2026-rank-6","value":6,"unit":"rank (1 = most popular)","subject":"Abyssinian: rank #6 in CFA's 2026 most-popular-breeds ranking","asof":"2026-09-07","source":{"publisher":"Cat Fanciers' Association (CFA)","title":"Most Popular Breeds for 2026","url":"https://cfa.org/cat-talk/most-popular-breeds-for-2026/","retrieved":"2026-09-07"},"method":{"type":"verbatim-quote","from":["data/popularity.json"],"how":"Rank and breed name from each numbered heading ('#N -- Breed: ...') on CFA's Most Popular Breeds for 2026 page. The tagline prose is CFA's copyrighted copy and is not reproduced."},"status":"verified","license":"facts-only","caveats":[]},{"id":"popularity-cfa-2026-rank-7","value":7,"unit":"rank (1 = most popular)","subject":"British Shorthair: rank #7 in CFA's 2026 most-popular-breeds ranking","asof":"2026-09-07","source":{"publisher":"Cat Fanciers' Association (CFA)","title":"Most Popular Breeds for 2026","url":"https://cfa.org/cat-talk/most-popular-breeds-for-2026/","retrieved":"2026-09-07"},"method":{"type":"verbatim-quote","from":["data/popularity.json"],"how":"Rank and breed name from each numbered heading ('#N -- Breed: ...') on CFA's Most Popular Breeds for 2026 page. The tagline prose is CFA's copyrighted copy and is not reproduced."},"status":"verified","license":"facts-only","caveats":[]},{"id":"popularity-cfa-2026-rank-8","value":8,"unit":"rank (1 = most popular)","subject":"Siberian: rank #8 in CFA's 2026 most-popular-breeds ranking","asof":"2026-09-07","source":{"publisher":"Cat Fanciers' Association (CFA)","title":"Most Popular Breeds for 2026","url":"https://cfa.org/cat-talk/most-popular-breeds-for-2026/","retrieved":"2026-09-07"},"method":{"type":"verbatim-quote","from":["data/popularity.json"],"how":"Rank and breed name from each numbered heading ('#N -- Breed: ...') on CFA's Most Popular Breeds for 2026 page. The tagline prose is CFA's copyrighted copy and is not reproduced."},"status":"verified","license":"facts-only","caveats":[]},{"id":"popularity-cfa-2026-rank-9","value":9,"unit":"rank (1 = most popular)","subject":"American Shorthair: rank #9 in CFA's 2026 most-popular-breeds ranking","asof":"2026-09-07","source":{"publisher":"Cat Fanciers' Association (CFA)","title":"Most Popular Breeds for 2026","url":"https://cfa.org/cat-talk/most-popular-breeds-for-2026/","retrieved":"2026-09-07"},"method":{"type":"verbatim-quote","from":["data/popularity.json"],"how":"Rank and breed name from each numbered heading ('#N -- Breed: ...') on CFA's Most Popular Breeds for 2026 page. The tagline prose is CFA's copyrighted copy and is not reproduced."},"status":"verified","license":"facts-only","caveats":[]},{"id":"popularity-cfa-2026-rank-10","value":10,"unit":"rank (1 = most popular)","subject":"Russian Blue: rank #10 in CFA's 2026 most-popular-breeds ranking","asof":"2026-09-07","source":{"publisher":"Cat Fanciers' Association (CFA)","title":"Most Popular Breeds for 2026","url":"https://cfa.org/cat-talk/most-popular-breeds-for-2026/","retrieved":"2026-09-07"},"method":{"type":"verbatim-quote","from":["data/popularity.json"],"how":"Rank and breed name from each numbered heading ('#N -- Breed: ...') on CFA's Most Popular Breeds for 2026 page. The tagline prose is CFA's copyrighted copy and is not reproduced."},"status":"verified","license":"facts-only","caveats":[]},{"id":"bodyweight-abyssinian","value":3.5,"unit":"kg (adult bodyweight, Wikidata P2067)","subject":"Abyssinian: adult bodyweight","asof":"2026-09-07","source":{"publisher":"Wikidata","title":"Instances/subclass-instances of cat breed (Q43577), SPARQL export","url":"https://query.wikidata.org/sparql","retrieved":"2026-09-07"},"method":{"type":"verbatim-quote","from":["data/breeds.json"],"how":"Wikidata P2067 (mass) statement on the breed item."},"status":"verified","license":"CC0","caveats":["Wikidata mass is sparse and its own sourcing varies by item; treat as indicative, not a veterinary measurement. See bodyweight-vetcompass-* figures for breeds with a clinical-cohort measurement instead."]},{"id":"bodyweight-american-curl","value":3.0,"unit":"kg (adult bodyweight, Wikidata P2067)","subject":"American Curl: adult bodyweight","asof":"2026-09-07","source":{"publisher":"Wikidata","title":"Instances/subclass-instances of cat breed (Q43577), SPARQL export","url":"https://query.wikidata.org/sparql","retrieved":"2026-09-07"},"method":{"type":"verbatim-quote","from":["data/breeds.json"],"how":"Wikidata P2067 (mass) statement on the breed item."},"status":"verified","license":"CC0","caveats":["Wikidata mass is sparse and its own sourcing varies by item; treat as indicative, not a veterinary measurement. See bodyweight-vetcompass-* figures for breeds with a clinical-cohort measurement instead."]},{"id":"bodyweight-bengal-cat","value":3.5,"unit":"kg (adult bodyweight, Wikidata P2067)","subject":"Bengal cat: adult bodyweight","asof":"2026-09-07","source":{"publisher":"Wikidata","title":"Instances/subclass-instances of cat breed (Q43577), SPARQL export","url":"https://query.wikidata.org/sparql","retrieved":"2026-09-07"},"method":{"type":"verbatim-quote","from":["data/breeds.json"],"how":"Wikidata P2067 (mass) statement on the breed item."},"status":"verified","license":"CC0","caveats":["Wikidata mass is sparse and its own sourcing varies by item; treat as indicative, not a veterinary measurement. See bodyweight-vetcompass-* figures for breeds with a clinical-cohort measurement instead."]},{"id":"bodyweight-british-shorthair","value":4.0,"unit":"kg (adult bodyweight, Wikidata P2067)","subject":"British Shorthair: adult bodyweight","asof":"2026-09-07","source":{"publisher":"Wikidata","title":"Instances/subclass-instances of cat breed (Q43577), SPARQL export","url":"https://query.wikidata.org/sparql","retrieved":"2026-09-07"},"method":{"type":"verbatim-quote","from":["data/breeds.json"],"how":"Wikidata P2067 (mass) statement on the breed item."},"status":"verified","license":"CC0","caveats":["Wikidata mass is sparse and its own sourcing varies by item; treat as indicative, not a veterinary measurement. See bodyweight-vetcompass-* figures for breeds with a clinical-cohort measurement instead."]},{"id":"bodyweight-korat","value":2.0,"unit":"kg (adult bodyweight, Wikidata P2067)","subject":"Korat: adult bodyweight","asof":"2026-09-07","source":{"publisher":"Wikidata","title":"Instances/subclass-instances of cat breed (Q43577), SPARQL export","url":"https://query.wikidata.org/sparql","retrieved":"2026-09-07"},"method":{"type":"verbatim-quote","from":["data/breeds.json"],"how":"Wikidata P2067 (mass) statement on the breed item."},"status":"verified","license":"CC0","caveats":["Wikidata mass is sparse and its own sourcing varies by item; treat as indicative, not a veterinary measurement. See bodyweight-vetcompass-* figures for breeds with a clinical-cohort measurement instead."]},{"id":"bodyweight-maine-coon","value":4.5,"unit":"kg (adult bodyweight, Wikidata P2067)","subject":"Maine coon: adult bodyweight","asof":"2026-09-07","source":{"publisher":"Wikidata","title":"Instances/subclass-instances of cat breed (Q43577), SPARQL export","url":"https://query.wikidata.org/sparql","retrieved":"2026-09-07"},"method":{"type":"verbatim-quote","from":["data/breeds.json"],"how":"Wikidata P2067 (mass) statement on the breed item."},"status":"verified","license":"CC0","caveats":["Wikidata mass is sparse and its own sourcing varies by item; treat as indicative, not a veterinary measurement. See bodyweight-vetcompass-* figures for breeds with a clinical-cohort measurement instead."]},{"id":"bodyweight-persian-cat","value":3.5,"unit":"kg (adult bodyweight, Wikidata P2067)","subject":"Persian cat: adult bodyweight","asof":"2026-09-07","source":{"publisher":"Wikidata","title":"Instances/subclass-instances of cat breed (Q43577), SPARQL export","url":"https://query.wikidata.org/sparql","retrieved":"2026-09-07"},"method":{"type":"verbatim-quote","from":["data/breeds.json"],"how":"Wikidata P2067 (mass) statement on the breed item."},"status":"verified","license":"CC0","caveats":["Wikidata mass is sparse and its own sourcing varies by item; treat as indicative, not a veterinary measurement. See bodyweight-vetcompass-* figures for breeds with a clinical-cohort measurement instead."]},{"id":"bodyweight-siamese","value":5.0,"unit":"kg (adult bodyweight, Wikidata P2067)","subject":"Siamese: adult bodyweight","asof":"2026-09-07","source":{"publisher":"Wikidata","title":"Instances/subclass-instances of cat breed (Q43577), SPARQL export","url":"https://query.wikidata.org/sparql","retrieved":"2026-09-07"},"method":{"type":"verbatim-quote","from":["data/breeds.json"],"how":"Wikidata P2067 (mass) statement on the breed item."},"status":"verified","license":"CC0","caveats":["Wikidata mass is sparse and its own sourcing varies by item; treat as indicative, not a veterinary measurement. See bodyweight-vetcompass-* figures for breeds with a clinical-cohort measurement instead."]},{"id":"bodyweight-suphalak","value":8.0,"unit":"kg (adult bodyweight, Wikidata P2067)","subject":"Suphalak: adult bodyweight","asof":"2026-09-07","source":{"publisher":"Wikidata","title":"Instances/subclass-instances of cat breed (Q43577), SPARQL export","url":"https://query.wikidata.org/sparql","retrieved":"2026-09-07"},"method":{"type":"verbatim-quote","from":["data/breeds.json"],"how":"Wikidata P2067 (mass) statement on the breed item."},"status":"verified","license":"CC0","caveats":["Wikidata mass is sparse and its own sourcing varies by item; treat as indicative, not a veterinary measurement. See bodyweight-vetcompass-* figures for breeds with a clinical-cohort measurement instead."]},{"id":"bodyweight-thai","value":5.0,"unit":"kg (adult bodyweight, Wikidata P2067)","subject":"Thai: adult bodyweight","asof":"2026-09-07","source":{"publisher":"Wikidata","title":"Instances/subclass-instances of cat breed (Q43577), SPARQL export","url":"https://query.wikidata.org/sparql","retrieved":"2026-09-07"},"method":{"type":"verbatim-quote","from":["data/breeds.json"],"how":"Wikidata P2067 (mass) statement on the breed item."},"status":"verified","license":"CC0","caveats":["Wikidata mass is sparse and its own sourcing varies by item; treat as indicative, not a veterinary measurement. See bodyweight-vetcompass-* figures for breeds with a clinical-cohort measurement instead."]},{"id":"bodyweight-turkish-angora","value":2.5,"unit":"kg (adult bodyweight, Wikidata P2067)","subject":"Turkish Angora: adult bodyweight","asof":"2026-09-07","source":{"publisher":"Wikidata","title":"Instances/subclass-instances of cat breed (Q43577), SPARQL export","url":"https://query.wikidata.org/sparql","retrieved":"2026-09-07"},"method":{"type":"verbatim-quote","from":["data/breeds.json"],"how":"Wikidata P2067 (mass) statement on the breed item."},"status":"verified","license":"CC0","caveats":["Wikidata mass is sparse and its own sourcing varies by item; treat as indicative, not a veterinary measurement. See bodyweight-vetcompass-* figures for breeds with a clinical-cohort measurement instead."]},{"id":"bodyweight-vetcompass-ragdoll","value":4.46,"unit":"kg (median adult bodyweight, VetCompass UK)","subject":"Ragdoll: adult bodyweight (VetCompass, Belshaw Z, O'Neill DG, Brodbelt DC, Church DB, Pegram C)","asof":"2026-09-07","source":{"publisher":"Canine Medicine and Genetics (BMC/Springer)","title":"Belshaw Z, O'Neill DG, Brodbelt DC, Church DB, Pegram C. Demography, common disorders, cause-specific mortality and life expectancy of Ragdoll cats under primary veterinary care during 2019 in the UK. Canine Med Genet. 2025;12(19).","url":"https://doi.org/10.1186/s40575-025-00148-9","retrieved":"2026-09-07"},"method":{"type":"verbatim-quote","from":["data/health-ragdoll2025-vetcompass.json"],"how":"Median adult bodyweight sentence and Table 3 (grouped-level disorder prevalence), random sample of 2,025 Ragdolls under UK primary veterinary care during 2019, out of a 1,254,484-cat VetCompass cohort in which Ragdolls were 1.70% of all cats (VetCompass).","n":2025},"status":"verified","license":"CC-BY-4.0","caveats":["IQR 3.79-5.19 kg.","Study sample n=2025 Ragdolls."]},{"id":"bodyweight-vetcompass-persian-cat","value":3.9,"unit":"kg (mean adult bodyweight, VetCompass UK)","subject":"Persian: adult bodyweight (VetCompass, Fuentes Pachon C, O'Neill DG, Faroon A, Church DB, Brodbelt DC)","asof":"2026-09-07","source":{"publisher":"Scientific Reports (Springer Nature)","title":"Fuentes Pachon C, O'Neill DG, Faroon A, Church DB, Brodbelt DC. Persian cats under first opinion veterinary care in the UK: demography, mortality and disorders. Sci Rep. 2019;9:12952.","url":"https://doi.org/10.1038/s41598-019-49317-4","retrieved":"2026-09-07"},"method":{"type":"verbatim-quote","from":["data/health-persian2019-vetcompass.json"],"how":"Mean adult bodyweight sentence, Table 2 (25 most common fine-level disorders), and the Introduction's cited ADPKD prevalence figure -- random sample of 3,235 Persians out of 285,547 UK primary-care cats, 2013 (VetCompass).","n":3235},"status":"verified","license":"CC-BY-4.0","caveats":["SD 0.9 kg.","Study sample n=3235 Persians."]},{"id":"fife-category-exotic","value":1,"unit":"FIFe category (1-4, coat/morphology grouping)","subject":"Exotic (EXO): FIFe Category 1","asof":"2026-09-07","source":{"publisher":"Federation Internationale Feline (FIFe)","title":"Cat breeds -- Fully Recognised Breeds by category","url":"https://fifeweb.org/cats/breeds/","retrieved":"2026-09-07"},"method":{"type":"verbatim-quote","from":["data/fife-categories.json"],"how":"Parsed the four 'Fully Recognised Breeds - Category N' sections of the FIFe breeds page for '<code> - <breed name> Breed Profile' entries."},"status":"verified","license":"facts-only","caveats":["Category is a coat/morphology grouping FIFe itself uses, not a ranking (1=lowest number, 4=highest, no ordinal meaning).","FIFe breed label 'Exotic' (EXO) does not have a confident 1:1 match in data/breeds.json."]},{"id":"fife-category-persian-cat","value":1,"unit":"FIFe category (1-4, coat/morphology grouping)","subject":"Persian (PER): FIFe Category 1","asof":"2026-09-07","source":{"publisher":"Federation Internationale Feline (FIFe)","title":"Cat breeds -- Fully Recognised Breeds by category","url":"https://fifeweb.org/cats/breeds/","retrieved":"2026-09-07"},"method":{"type":"verbatim-quote","from":["data/fife-categories.json"],"how":"Parsed the four 'Fully Recognised Breeds - Category N' sections of the FIFe breeds page for '<code> - <breed name> Breed Profile' entries."},"status":"verified","license":"facts-only","caveats":["Category is a coat/morphology grouping FIFe itself uses, not a ranking (1=lowest number, 4=highest, no ordinal meaning)."]},{"id":"fife-category-ragdoll","value":1,"unit":"FIFe category (1-4, coat/morphology grouping)","subject":"Ragdoll (RAG): FIFe Category 1","asof":"2026-09-07","source":{"publisher":"Federation Internationale Feline (FIFe)","title":"Cat breeds -- Fully Recognised Breeds by category","url":"https://fifeweb.org/cats/breeds/","retrieved":"2026-09-07"},"method":{"type":"verbatim-quote","from":["data/fife-categories.json"],"how":"Parsed the four 'Fully Recognised Breeds - Category N' sections of the FIFe breeds page for '<code> - <breed name> Breed Profile' entries."},"status":"verified","license":"facts-only","caveats":["Category is a coat/morphology grouping FIFe itself uses, not a ranking (1=lowest number, 4=highest, no ordinal meaning)."]},{"id":"fife-category-sacred-birman","value":1,"unit":"FIFe category (1-4, coat/morphology grouping)","subject":"Sacred Birman (SBI): FIFe Category 1","asof":"2026-09-07","source":{"publisher":"Federation Internationale Feline (FIFe)","title":"Cat breeds -- Fully Recognised Breeds by category","url":"https://fifeweb.org/cats/breeds/","retrieved":"2026-09-07"},"method":{"type":"verbatim-quote","from":["data/fife-categories.json"],"how":"Parsed the four 'Fully Recognised Breeds - Category N' sections of the FIFe breeds page for '<code> - <breed name> Breed Profile' entries."},"status":"verified","license":"facts-only","caveats":["Category is a coat/morphology grouping FIFe itself uses, not a ranking (1=lowest number, 4=highest, no ordinal meaning).","FIFe breed label 'Sacred Birman' (SBI) does not have a confident 1:1 match in data/breeds.json."]},{"id":"fife-category-turkish-van","value":1,"unit":"FIFe category (1-4, coat/morphology grouping)","subject":"Turkish Van (TUV): FIFe Category 1","asof":"2026-09-07","source":{"publisher":"Federation Internationale Feline (FIFe)","title":"Cat breeds -- Fully Recognised Breeds by category","url":"https://fifeweb.org/cats/breeds/","retrieved":"2026-09-07"},"method":{"type":"verbatim-quote","from":["data/fife-categories.json"],"how":"Parsed the four 'Fully Recognised Breeds - Category N' sections of the FIFe breeds page for '<code> - <breed name> Breed Profile' entries."},"status":"verified","license":"facts-only","caveats":["Category is a coat/morphology grouping FIFe itself uses, not a ranking (1=lowest number, 4=highest, no ordinal meaning)."]},{"id":"fife-category-american-curl-longhair","value":2,"unit":"FIFe category (1-4, coat/morphology grouping)","subject":"American Curl Longhair (ACL): FIFe Category 2","asof":"2026-09-07","source":{"publisher":"Federation Internationale Feline (FIFe)","title":"Cat breeds -- Fully Recognised Breeds by category","url":"https://fifeweb.org/cats/breeds/","retrieved":"2026-09-07"},"method":{"type":"verbatim-quote","from":["data/fife-categories.json"],"how":"Parsed the four 'Fully Recognised Breeds - Category N' sections of the FIFe breeds page for '<code> - <breed name> Breed Profile' entries."},"status":"verified","license":"facts-only","caveats":["Category is a coat/morphology grouping FIFe itself uses, not a ranking (1=lowest number, 4=highest, no ordinal meaning).","FIFe breed label 'American Curl Longhair' (ACL) does not have a confident 1:1 match in data/breeds.json."]},{"id":"fife-category-american-curl-shorthair","value":2,"unit":"FIFe category (1-4, coat/morphology grouping)","subject":"American Curl Shorthair (ACS): FIFe Category 2","asof":"2026-09-07","source":{"publisher":"Federation Internationale Feline (FIFe)","title":"Cat breeds -- Fully Recognised Breeds by category","url":"https://fifeweb.org/cats/breeds/","retrieved":"2026-09-07"},"method":{"type":"verbatim-quote","from":["data/fife-categories.json"],"how":"Parsed the four 'Fully Recognised Breeds - Category N' sections of the FIFe breeds page for '<code> - <breed name> Breed Profile' entries."},"status":"verified","license":"facts-only","caveats":["Category is a coat/morphology grouping FIFe itself uses, not a ranking (1=lowest number, 4=highest, no ordinal meaning).","FIFe breed label 'American Curl Shorthair' (ACS) does not have a confident 1:1 match in data/breeds.json."]},{"id":"fife-category-laperm-longhair","value":2,"unit":"FIFe category (1-4, coat/morphology grouping)","subject":"LaPerm Longhair (LPL): FIFe Category 2","asof":"2026-09-07","source":{"publisher":"Federation Internationale Feline (FIFe)","title":"Cat breeds -- Fully Recognised Breeds by category","url":"https://fifeweb.org/cats/breeds/","retrieved":"2026-09-07"},"method":{"type":"verbatim-quote","from":["data/fife-categories.json"],"how":"Parsed the four 'Fully Recognised Breeds - Category N' sections of the FIFe breeds page for '<code> - <breed name> Breed Profile' entries."},"status":"verified","license":"facts-only","caveats":["Category is a coat/morphology grouping FIFe itself uses, not a ranking (1=lowest number, 4=highest, no ordinal meaning).","FIFe breed label 'LaPerm Longhair' (LPL) does not have a confident 1:1 match in data/breeds.json."]},{"id":"fife-category-laperm-shorthair","value":2,"unit":"FIFe category (1-4, coat/morphology grouping)","subject":"LaPerm Shorthair (LPS): FIFe Category 2","asof":"2026-09-07","source":{"publisher":"Federation Internationale Feline (FIFe)","title":"Cat breeds -- Fully Recognised Breeds by category","url":"https://fifeweb.org/cats/breeds/","retrieved":"2026-09-07"},"method":{"type":"verbatim-quote","from":["data/fife-categories.json"],"how":"Parsed the four 'Fully Recognised Breeds - Category N' sections of the FIFe breeds page for '<code> - <breed name> Breed Profile' entries."},"status":"verified","license":"facts-only","caveats":["Category is a coat/morphology grouping FIFe itself uses, not a ranking (1=lowest number, 4=highest, no ordinal meaning).","FIFe breed label 'LaPerm Shorthair' (LPS) does not have a confident 1:1 match in data/breeds.json."]},{"id":"fife-category-maine-coon","value":2,"unit":"FIFe category (1-4, coat/morphology grouping)","subject":"Maine Coon (MCO): FIFe Category 2","asof":"2026-09-07","source":{"publisher":"Federation Internationale Feline (FIFe)","title":"Cat breeds -- Fully Recognised Breeds by category","url":"https://fifeweb.org/cats/breeds/","retrieved":"2026-09-07"},"method":{"type":"verbatim-quote","from":["data/fife-categories.json"],"how":"Parsed the four 'Fully Recognised Breeds - Category N' sections of the FIFe breeds page for '<code> - <breed name> Breed Profile' entries."},"status":"verified","license":"facts-only","caveats":["Category is a coat/morphology grouping FIFe itself uses, not a ranking (1=lowest number, 4=highest, no ordinal meaning)."]},{"id":"fife-category-norwegian-forest-cat","value":2,"unit":"FIFe category (1-4, coat/morphology grouping)","subject":"Norwegian Forest Cat (NFO): FIFe Category 2","asof":"2026-09-07","source":{"publisher":"Federation Internationale Feline (FIFe)","title":"Cat breeds -- Fully Recognised Breeds by category","url":"https://fifeweb.org/cats/breeds/","retrieved":"2026-09-07"},"method":{"type":"verbatim-quote","from":["data/fife-categories.json"],"how":"Parsed the four 'Fully Recognised Breeds - Category N' sections of the FIFe breeds page for '<code> - <breed name> Breed Profile' entries."},"status":"verified","license":"facts-only","caveats":["Category is a coat/morphology grouping FIFe itself uses, not a ranking (1=lowest number, 4=highest, no ordinal meaning)."]},{"id":"fife-category-siberian","value":2,"unit":"FIFe category (1-4, coat/morphology grouping)","subject":"Siberian (SIB): FIFe Category 2","asof":"2026-09-07","source":{"publisher":"Federation Internationale Feline (FIFe)","title":"Cat breeds -- Fully Recognised Breeds by category","url":"https://fifeweb.org/cats/breeds/","retrieved":"2026-09-07"},"method":{"type":"verbatim-quote","from":["data/fife-categories.json"],"how":"Parsed the four 'Fully Recognised Breeds - Category N' sections of the FIFe breeds page for '<code> - <breed name> Breed Profile' entries."},"status":"verified","license":"facts-only","caveats":["Category is a coat/morphology grouping FIFe itself uses, not a ranking (1=lowest number, 4=highest, no ordinal meaning)."]},{"id":"fife-category-turkish-angora","value":2,"unit":"FIFe category (1-4, coat/morphology grouping)","subject":"Turkish Angora (TUA): FIFe Category 2","asof":"2026-09-07","source":{"publisher":"Federation Internationale Feline (FIFe)","title":"Cat breeds -- Fully Recognised Breeds by category","url":"https://fifeweb.org/cats/breeds/","retrieved":"2026-09-07"},"method":{"type":"verbatim-quote","from":["data/fife-categories.json"],"how":"Parsed the four 'Fully Recognised Breeds - Category N' sections of the FIFe breeds page for '<code> - <breed name> Breed Profile' entries."},"status":"verified","license":"facts-only","caveats":["Category is a coat/morphology grouping FIFe itself uses, not a ranking (1=lowest number, 4=highest, no ordinal meaning)."]},{"id":"fife-category-bengal-cat","value":3,"unit":"FIFe category (1-4, coat/morphology grouping)","subject":"Bengal (BEN): FIFe Category 3","asof":"2026-09-07","source":{"publisher":"Federation Internationale Feline (FIFe)","title":"Cat breeds -- Fully Recognised Breeds by category","url":"https://fifeweb.org/cats/breeds/","retrieved":"2026-09-07"},"method":{"type":"verbatim-quote","from":["data/fife-categories.json"],"how":"Parsed the four 'Fully Recognised Breeds - Category N' sections of the FIFe breeds page for '<code> - <breed name> Breed Profile' entries."},"status":"verified","license":"facts-only","caveats":["Category is a coat/morphology grouping FIFe itself uses, not a ranking (1=lowest number, 4=highest, no ordinal meaning)."]},{"id":"fife-category-british-longhair","value":3,"unit":"FIFe category (1-4, coat/morphology grouping)","subject":"British Longhair (BLH): FIFe Category 3","asof":"2026-09-07","source":{"publisher":"Federation Internationale Feline (FIFe)","title":"Cat breeds -- Fully Recognised Breeds by category","url":"https://fifeweb.org/cats/breeds/","retrieved":"2026-09-07"},"method":{"type":"verbatim-quote","from":["data/fife-categories.json"],"how":"Parsed the four 'Fully Recognised Breeds - Category N' sections of the FIFe breeds page for '<code> - <breed name> Breed Profile' entries."},"status":"verified","license":"facts-only","caveats":["Category is a coat/morphology grouping FIFe itself uses, not a ranking (1=lowest number, 4=highest, no ordinal meaning)."]},{"id":"fife-category-burmilla","value":3,"unit":"FIFe category (1-4, coat/morphology grouping)","subject":"Burmilla (BML): FIFe Category 3","asof":"2026-09-07","source":{"publisher":"Federation Internationale Feline (FIFe)","title":"Cat breeds -- Fully Recognised Breeds by category","url":"https://fifeweb.org/cats/breeds/","retrieved":"2026-09-07"},"method":{"type":"verbatim-quote","from":["data/fife-categories.json"],"how":"Parsed the four 'Fully Recognised Breeds - Category N' sections of the FIFe breeds page for '<code> - <breed name> Breed Profile' entries."},"status":"verified","license":"facts-only","caveats":["Category is a coat/morphology grouping FIFe itself uses, not a ranking (1=lowest number, 4=highest, no ordinal meaning)."]},{"id":"fife-category-british-shorthair","value":3,"unit":"FIFe category (1-4, coat/morphology grouping)","subject":"British Shorthair (BSH): FIFe Category 3","asof":"2026-09-07","source":{"publisher":"Federation Internationale Feline (FIFe)","title":"Cat breeds -- Fully Recognised Breeds by category","url":"https://fifeweb.org/cats/breeds/","retrieved":"2026-09-07"},"method":{"type":"verbatim-quote","from":["data/fife-categories.json"],"how":"Parsed the four 'Fully Recognised Breeds - Category N' sections of the FIFe breeds page for '<code> - <breed name> Breed Profile' entries."},"status":"verified","license":"facts-only","caveats":["Category is a coat/morphology grouping FIFe itself uses, not a ranking (1=lowest number, 4=highest, no ordinal meaning)."]},{"id":"fife-category-burmese","value":3,"unit":"FIFe category (1-4, coat/morphology grouping)","subject":"Burmese (BUR): FIFe Category 3","asof":"2026-09-07","source":{"publisher":"Federation Internationale Feline (FIFe)","title":"Cat breeds -- Fully Recognised Breeds by category","url":"https://fifeweb.org/cats/breeds/","retrieved":"2026-09-07"},"method":{"type":"verbatim-quote","from":["data/fife-categories.json"],"how":"Parsed the four 'Fully Recognised Breeds - Category N' sections of the FIFe breeds page for '<code> - <breed name> Breed Profile' entries."},"status":"verified","license":"facts-only","caveats":["Category is a coat/morphology grouping FIFe itself uses, not a ranking (1=lowest number, 4=highest, no ordinal meaning)."]},{"id":"fife-category-chartreux","value":3,"unit":"FIFe category (1-4, coat/morphology grouping)","subject":"Chartreux (CHA): FIFe Category 3","asof":"2026-09-07","source":{"publisher":"Federation Internationale Feline (FIFe)","title":"Cat breeds -- Fully Recognised Breeds by category","url":"https://fifeweb.org/cats/breeds/","retrieved":"2026-09-07"},"method":{"type":"verbatim-quote","from":["data/fife-categories.json"],"how":"Parsed the four 'Fully Recognised Breeds - Category N' sections of the FIFe breeds page for '<code> - <breed name> Breed Profile' entries."},"status":"verified","license":"facts-only","caveats":["Category is a coat/morphology grouping FIFe itself uses, not a ranking (1=lowest number, 4=highest, no ordinal meaning)."]},{"id":"fife-category-cymric","value":3,"unit":"FIFe category (1-4, coat/morphology grouping)","subject":"Cymric (CYM): FIFe Category 3","asof":"2026-09-07","source":{"publisher":"Federation Internationale Feline (FIFe)","title":"Cat breeds -- Fully Recognised Breeds by category","url":"https://fifeweb.org/cats/breeds/","retrieved":"2026-09-07"},"method":{"type":"verbatim-quote","from":["data/fife-categories.json"],"how":"Parsed the four 'Fully Recognised Breeds - Category N' sections of the FIFe breeds page for '<code> - <breed name> Breed Profile' entries."},"status":"verified","license":"facts-only","caveats":["Category is a coat/morphology grouping FIFe itself uses, not a ranking (1=lowest number, 4=highest, no ordinal meaning)."]},{"id":"fife-category-european","value":3,"unit":"FIFe category (1-4, coat/morphology grouping)","subject":"European (EUR): FIFe Category 3","asof":"2026-09-07","source":{"publisher":"Federation Internationale Feline (FIFe)","title":"Cat breeds -- Fully Recognised Breeds by category","url":"https://fifeweb.org/cats/breeds/","retrieved":"2026-09-07"},"method":{"type":"verbatim-quote","from":["data/fife-categories.json"],"how":"Parsed the four 'Fully Recognised Breeds - Category N' sections of the FIFe breeds page for '<code> - <breed name> Breed Profile' entries."},"status":"verified","license":"facts-only","caveats":["Category is a coat/morphology grouping FIFe itself uses, not a ranking (1=lowest number, 4=highest, no ordinal meaning).","FIFe breed label 'European' (EUR) does not have a confident 1:1 match in data/breeds.json."]},{"id":"fife-category-kurilean-bobtail-longhair","value":3,"unit":"FIFe category (1-4, coat/morphology grouping)","subject":"Kurilean Bobtail Longhair (KBL): FIFe Category 3","asof":"2026-09-07","source":{"publisher":"Federation Internationale Feline (FIFe)","title":"Cat breeds -- Fully Recognised Breeds by category","url":"https://fifeweb.org/cats/breeds/","retrieved":"2026-09-07"},"method":{"type":"verbatim-quote","from":["data/fife-categories.json"],"how":"Parsed the four 'Fully Recognised Breeds - Category N' sections of the FIFe breeds page for '<code> - <breed name> Breed Profile' entries."},"status":"verified","license":"facts-only","caveats":["Category is a coat/morphology grouping FIFe itself uses, not a ranking (1=lowest number, 4=highest, no ordinal meaning).","FIFe breed label 'Kurilean Bobtail Longhair' (KBL) does not have a confident 1:1 match in data/breeds.json."]},{"id":"fife-category-kurilean-bobtail-shorthair","value":3,"unit":"FIFe category (1-4, coat/morphology grouping)","subject":"Kurilean Bobtail Shorthair (KBS): FIFe Category 3","asof":"2026-09-07","source":{"publisher":"Federation Internationale Feline (FIFe)","title":"Cat breeds -- Fully Recognised Breeds by category","url":"https://fifeweb.org/cats/breeds/","retrieved":"2026-09-07"},"method":{"type":"verbatim-quote","from":["data/fife-categories.json"],"how":"Parsed the four 'Fully Recognised Breeds - Category N' sections of the FIFe breeds page for '<code> - <breed name> Breed Profile' entries."},"status":"verified","license":"facts-only","caveats":["Category is a coat/morphology grouping FIFe itself uses, not a ranking (1=lowest number, 4=highest, no ordinal meaning).","FIFe breed label 'Kurilean Bobtail Shorthair' (KBS) does not have a confident 1:1 match in data/breeds.json."]},{"id":"fife-category-korat","value":3,"unit":"FIFe category (1-4, coat/morphology grouping)","subject":"Korat (KOR): FIFe Category 3","asof":"2026-09-07","source":{"publisher":"Federation Internationale Feline (FIFe)","title":"Cat breeds -- Fully Recognised Breeds by category","url":"https://fifeweb.org/cats/breeds/","retrieved":"2026-09-07"},"method":{"type":"verbatim-quote","from":["data/fife-categories.json"],"how":"Parsed the four 'Fully Recognised Breeds - Category N' sections of the FIFe breeds page for '<code> - <breed name> Breed Profile' entries."},"status":"verified","license":"facts-only","caveats":["Category is a coat/morphology grouping FIFe itself uses, not a ranking (1=lowest number, 4=highest, no ordinal meaning)."]},{"id":"fife-category-manx","value":3,"unit":"FIFe category (1-4, coat/morphology grouping)","subject":"Manx (MAN): FIFe Category 3","asof":"2026-09-07","source":{"publisher":"Federation Internationale Feline (FIFe)","title":"Cat breeds -- Fully Recognised Breeds by category","url":"https://fifeweb.org/cats/breeds/","retrieved":"2026-09-07"},"method":{"type":"verbatim-quote","from":["data/fife-categories.json"],"how":"Parsed the four 'Fully Recognised Breeds - Category N' sections of the FIFe breeds page for '<code> - <breed name> Breed Profile' entries."},"status":"verified","license":"facts-only","caveats":["Category is a coat/morphology grouping FIFe itself uses, not a ranking (1=lowest number, 4=highest, no ordinal meaning)."]},{"id":"fife-category-egyptian-mau","value":3,"unit":"FIFe category (1-4, coat/morphology grouping)","subject":"Egyptian Mau (MAU): FIFe Category 3","asof":"2026-09-07","source":{"publisher":"Federation Internationale Feline (FIFe)","title":"Cat breeds -- Fully Recognised Breeds by category","url":"https://fifeweb.org/cats/breeds/","retrieved":"2026-09-07"},"method":{"type":"verbatim-quote","from":["data/fife-categories.json"],"how":"Parsed the four 'Fully Recognised Breeds - Category N' sections of the FIFe breeds page for '<code> - <breed name> Breed Profile' entries."},"status":"verified","license":"facts-only","caveats":["Category is a coat/morphology grouping FIFe itself uses, not a ranking (1=lowest number, 4=highest, no ordinal meaning)."]},{"id":"fife-category-ocicat","value":3,"unit":"FIFe category (1-4, coat/morphology grouping)","subject":"Ocicat (OCI): FIFe Category 3","asof":"2026-09-07","source":{"publisher":"Federation Internationale Feline (FIFe)","title":"Cat breeds -- Fully Recognised Breeds by category","url":"https://fifeweb.org/cats/breeds/","retrieved":"2026-09-07"},"method":{"type":"verbatim-quote","from":["data/fife-categories.json"],"how":"Parsed the four 'Fully Recognised Breeds - Category N' sections of the FIFe breeds page for '<code> - <breed name> Breed Profile' entries."},"status":"verified","license":"facts-only","caveats":["Category is a coat/morphology grouping FIFe itself uses, not a ranking (1=lowest number, 4=highest, no ordinal meaning)."]},{"id":"fife-category-singapura","value":3,"unit":"FIFe category (1-4, coat/morphology grouping)","subject":"Singapura (SIN): FIFe Category 3","asof":"2026-09-07","source":{"publisher":"Federation Internationale Feline (FIFe)","title":"Cat breeds -- Fully Recognised Breeds by category","url":"https://fifeweb.org/cats/breeds/","retrieved":"2026-09-07"},"method":{"type":"verbatim-quote","from":["data/fife-categories.json"],"how":"Parsed the four 'Fully Recognised Breeds - Category N' sections of the FIFe breeds page for '<code> - <breed name> Breed Profile' entries."},"status":"verified","license":"facts-only","caveats":["Category is a coat/morphology grouping FIFe itself uses, not a ranking (1=lowest number, 4=highest, no ordinal meaning)."]},{"id":"fife-category-snowshoe","value":3,"unit":"FIFe category (1-4, coat/morphology grouping)","subject":"Snowshoe (SNO): FIFe Category 3","asof":"2026-09-07","source":{"publisher":"Federation Internationale Feline (FIFe)","title":"Cat breeds -- Fully Recognised Breeds by category","url":"https://fifeweb.org/cats/breeds/","retrieved":"2026-09-07"},"method":{"type":"verbatim-quote","from":["data/fife-categories.json"],"how":"Parsed the four 'Fully Recognised Breeds - Category N' sections of the FIFe breeds page for '<code> - <breed name> Breed Profile' entries."},"status":"verified","license":"facts-only","caveats":["Category is a coat/morphology grouping FIFe itself uses, not a ranking (1=lowest number, 4=highest, no ordinal meaning)."]},{"id":"fife-category-sokoke","value":3,"unit":"FIFe category (1-4, coat/morphology grouping)","subject":"Sokoke (SOK): FIFe Category 3","asof":"2026-09-07","source":{"publisher":"Federation Internationale Feline (FIFe)","title":"Cat breeds -- Fully Recognised Breeds by category","url":"https://fifeweb.org/cats/breeds/","retrieved":"2026-09-07"},"method":{"type":"verbatim-quote","from":["data/fife-categories.json"],"how":"Parsed the four 'Fully Recognised Breeds - Category N' sections of the FIFe breeds page for '<code> - <breed name> Breed Profile' entries."},"status":"verified","license":"facts-only","caveats":["Category is a coat/morphology grouping FIFe itself uses, not a ranking (1=lowest number, 4=highest, no ordinal meaning)."]},{"id":"fife-category-selkirk-rex-longhair","value":3,"unit":"FIFe category (1-4, coat/morphology grouping)","subject":"Selkirk Rex Longhair (SRL): FIFe Category 3","asof":"2026-09-07","source":{"publisher":"Federation Internationale Feline (FIFe)","title":"Cat breeds -- Fully Recognised Breeds by category","url":"https://fifeweb.org/cats/breeds/","retrieved":"2026-09-07"},"method":{"type":"verbatim-quote","from":["data/fife-categories.json"],"how":"Parsed the four 'Fully Recognised Breeds - Category N' sections of the FIFe breeds page for '<code> - <breed name> Breed Profile' entries."},"status":"verified","license":"facts-only","caveats":["Category is a coat/morphology grouping FIFe itself uses, not a ranking (1=lowest number, 4=highest, no ordinal meaning).","FIFe breed label 'Selkirk Rex Longhair' (SRL) does not have a confident 1:1 match in data/breeds.json."]},{"id":"fife-category-selkirk-rex-shorthair","value":3,"unit":"FIFe category (1-4, coat/morphology grouping)","subject":"Selkirk Rex Shorthair (SRS): FIFe Category 3","asof":"2026-09-07","source":{"publisher":"Federation Internationale Feline (FIFe)","title":"Cat breeds -- Fully Recognised Breeds by category","url":"https://fifeweb.org/cats/breeds/","retrieved":"2026-09-07"},"method":{"type":"verbatim-quote","from":["data/fife-categories.json"],"how":"Parsed the four 'Fully Recognised Breeds - Category N' sections of the FIFe breeds page for '<code> - <breed name> Breed Profile' entries."},"status":"verified","license":"facts-only","caveats":["Category is a coat/morphology grouping FIFe itself uses, not a ranking (1=lowest number, 4=highest, no ordinal meaning).","FIFe breed label 'Selkirk Rex Shorthair' (SRS) does not have a confident 1:1 match in data/breeds.json."]},{"id":"fife-category-abyssinian","value":4,"unit":"FIFe category (1-4, coat/morphology grouping)","subject":"Abyssinian (ABY): FIFe Category 4","asof":"2026-09-07","source":{"publisher":"Federation Internationale Feline (FIFe)","title":"Cat breeds -- Fully Recognised Breeds by category","url":"https://fifeweb.org/cats/breeds/","retrieved":"2026-09-07"},"method":{"type":"verbatim-quote","from":["data/fife-categories.json"],"how":"Parsed the four 'Fully Recognised Breeds - Category N' sections of the FIFe breeds page for '<code> - <breed name> Breed Profile' entries."},"status":"verified","license":"facts-only","caveats":["Category is a coat/morphology grouping FIFe itself uses, not a ranking (1=lowest number, 4=highest, no ordinal meaning)."]},{"id":"fife-category-balinese-cat","value":4,"unit":"FIFe category (1-4, coat/morphology grouping)","subject":"Balinese (BAL): FIFe Category 4","asof":"2026-09-07","source":{"publisher":"Federation Internationale Feline (FIFe)","title":"Cat breeds -- Fully Recognised Breeds by category","url":"https://fifeweb.org/cats/breeds/","retrieved":"2026-09-07"},"method":{"type":"verbatim-quote","from":["data/fife-categories.json"],"how":"Parsed the four 'Fully Recognised Breeds - Category N' sections of the FIFe breeds page for '<code> - <breed name> Breed Profile' entries."},"status":"verified","license":"facts-only","caveats":["Category is a coat/morphology grouping FIFe itself uses, not a ranking (1=lowest number, 4=highest, no ordinal meaning)."]},{"id":"fife-category-cornish-rex","value":4,"unit":"FIFe category (1-4, coat/morphology grouping)","subject":"Cornish Rex (CRX): FIFe Category 4","asof":"2026-09-07","source":{"publisher":"Federation Internationale Feline (FIFe)","title":"Cat breeds -- Fully Recognised Breeds by category","url":"https://fifeweb.org/cats/breeds/","retrieved":"2026-09-07"},"method":{"type":"verbatim-quote","from":["data/fife-categories.json"],"how":"Parsed the four 'Fully Recognised Breeds - Category N' sections of the FIFe breeds page for '<code> - <breed name> Breed Profile' entries."},"status":"verified","license":"facts-only","caveats":["Category is a coat/morphology grouping FIFe itself uses, not a ranking (1=lowest number, 4=highest, no ordinal meaning)."]},{"id":"fife-category-devon-rex","value":4,"unit":"FIFe category (1-4, coat/morphology grouping)","subject":"Devon Rex (DRX): FIFe Category 4","asof":"2026-09-07","source":{"publisher":"Federation Internationale Feline (FIFe)","title":"Cat breeds -- Fully Recognised Breeds by category","url":"https://fifeweb.org/cats/breeds/","retrieved":"2026-09-07"},"method":{"type":"verbatim-quote","from":["data/fife-categories.json"],"how":"Parsed the four 'Fully Recognised Breeds - Category N' sections of the FIFe breeds page for '<code> - <breed name> Breed Profile' entries."},"status":"verified","license":"facts-only","caveats":["Category is a coat/morphology grouping FIFe itself uses, not a ranking (1=lowest number, 4=highest, no ordinal meaning)."]},{"id":"fife-category-don-sphynx","value":4,"unit":"FIFe category (1-4, coat/morphology grouping)","subject":"Don Sphynx (DSP): FIFe Category 4","asof":"2026-09-07","source":{"publisher":"Federation Internationale Feline (FIFe)","title":"Cat breeds -- Fully Recognised Breeds by category","url":"https://fifeweb.org/cats/breeds/","retrieved":"2026-09-07"},"method":{"type":"verbatim-quote","from":["data/fife-categories.json"],"how":"Parsed the four 'Fully Recognised Breeds - Category N' sections of the FIFe breeds page for '<code> - <breed name> Breed Profile' entries."},"status":"verified","license":"facts-only","caveats":["Category is a coat/morphology grouping FIFe itself uses, not a ranking (1=lowest number, 4=highest, no ordinal meaning).","FIFe breed label 'Don Sphynx' (DSP) does not have a confident 1:1 match in data/breeds.json."]},{"id":"fife-category-german-rex","value":4,"unit":"FIFe category (1-4, coat/morphology grouping)","subject":"German Rex (GRX): FIFe Category 4","asof":"2026-09-07","source":{"publisher":"Federation Internationale Feline (FIFe)","title":"Cat breeds -- Fully Recognised Breeds by category","url":"https://fifeweb.org/cats/breeds/","retrieved":"2026-09-07"},"method":{"type":"verbatim-quote","from":["data/fife-categories.json"],"how":"Parsed the four 'Fully Recognised Breeds - Category N' sections of the FIFe breeds page for '<code> - <breed name> Breed Profile' entries."},"status":"verified","license":"facts-only","caveats":["Category is a coat/morphology grouping FIFe itself uses, not a ranking (1=lowest number, 4=highest, no ordinal meaning)."]},{"id":"fife-category-japanese-bobtail-shorthair","value":4,"unit":"FIFe category (1-4, coat/morphology grouping)","subject":"Japanese Bobtail Shorthair (JBS): FIFe Category 4","asof":"2026-09-07","source":{"publisher":"Federation Internationale Feline (FIFe)","title":"Cat breeds -- Fully Recognised Breeds by category","url":"https://fifeweb.org/cats/breeds/","retrieved":"2026-09-07"},"method":{"type":"verbatim-quote","from":["data/fife-categories.json"],"how":"Parsed the four 'Fully Recognised Breeds - Category N' sections of the FIFe breeds page for '<code> - <breed name> Breed Profile' entries."},"status":"verified","license":"facts-only","caveats":["Category is a coat/morphology grouping FIFe itself uses, not a ranking (1=lowest number, 4=highest, no ordinal meaning).","FIFe breed label 'Japanese Bobtail Shorthair' (JBS) does not have a confident 1:1 match in data/breeds.json."]},{"id":"fife-category-oriental-longhair","value":4,"unit":"FIFe category (1-4, coat/morphology grouping)","subject":"Oriental Longhair (OLH): FIFe Category 4","asof":"2026-09-07","source":{"publisher":"Federation Internationale Feline (FIFe)","title":"Cat breeds -- Fully Recognised Breeds by category","url":"https://fifeweb.org/cats/breeds/","retrieved":"2026-09-07"},"method":{"type":"verbatim-quote","from":["data/fife-categories.json"],"how":"Parsed the four 'Fully Recognised Breeds - Category N' sections of the FIFe breeds page for '<code> - <breed name> Breed Profile' entries."},"status":"verified","license":"facts-only","caveats":["Category is a coat/morphology grouping FIFe itself uses, not a ranking (1=lowest number, 4=highest, no ordinal meaning)."]},{"id":"fife-category-oriental-shorthair","value":4,"unit":"FIFe category (1-4, coat/morphology grouping)","subject":"Oriental Shorthair (OSH): FIFe Category 4","asof":"2026-09-07","source":{"publisher":"Federation Internationale Feline (FIFe)","title":"Cat breeds -- Fully Recognised Breeds by category","url":"https://fifeweb.org/cats/breeds/","retrieved":"2026-09-07"},"method":{"type":"verbatim-quote","from":["data/fife-categories.json"],"how":"Parsed the four 'Fully Recognised Breeds - Category N' sections of the FIFe breeds page for '<code> - <breed name> Breed Profile' entries."},"status":"verified","license":"facts-only","caveats":["Category is a coat/morphology grouping FIFe itself uses, not a ranking (1=lowest number, 4=highest, no ordinal meaning)."]},{"id":"fife-category-peterbald","value":4,"unit":"FIFe category (1-4, coat/morphology grouping)","subject":"Peterbald (PEB): FIFe Category 4","asof":"2026-09-07","source":{"publisher":"Federation Internationale Feline (FIFe)","title":"Cat breeds -- Fully Recognised Breeds by category","url":"https://fifeweb.org/cats/breeds/","retrieved":"2026-09-07"},"method":{"type":"verbatim-quote","from":["data/fife-categories.json"],"how":"Parsed the four 'Fully Recognised Breeds - Category N' sections of the FIFe breeds page for '<code> - <breed name> Breed Profile' entries."},"status":"verified","license":"facts-only","caveats":["Category is a coat/morphology grouping FIFe itself uses, not a ranking (1=lowest number, 4=highest, no ordinal meaning)."]},{"id":"fife-category-russian-blue","value":4,"unit":"FIFe category (1-4, coat/morphology grouping)","subject":"Russian Blue (RUS): FIFe Category 4","asof":"2026-09-07","source":{"publisher":"Federation Internationale Feline (FIFe)","title":"Cat breeds -- Fully Recognised Breeds by category","url":"https://fifeweb.org/cats/breeds/","retrieved":"2026-09-07"},"method":{"type":"verbatim-quote","from":["data/fife-categories.json"],"how":"Parsed the four 'Fully Recognised Breeds - Category N' sections of the FIFe breeds page for '<code> - <breed name> Breed Profile' entries."},"status":"verified","license":"facts-only","caveats":["Category is a coat/morphology grouping FIFe itself uses, not a ranking (1=lowest number, 4=highest, no ordinal meaning)."]},{"id":"fife-category-siamese","value":4,"unit":"FIFe category (1-4, coat/morphology grouping)","subject":"Siamese (SIA): FIFe Category 4","asof":"2026-09-07","source":{"publisher":"Federation Internationale Feline (FIFe)","title":"Cat breeds -- Fully Recognised Breeds by category","url":"https://fifeweb.org/cats/breeds/","retrieved":"2026-09-07"},"method":{"type":"verbatim-quote","from":["data/fife-categories.json"],"how":"Parsed the four 'Fully Recognised Breeds - Category N' sections of the FIFe breeds page for '<code> - <breed name> Breed Profile' entries."},"status":"verified","license":"facts-only","caveats":["Category is a coat/morphology grouping FIFe itself uses, not a ranking (1=lowest number, 4=highest, no ordinal meaning)."]},{"id":"fife-category-somali","value":4,"unit":"FIFe category (1-4, coat/morphology grouping)","subject":"Somali (SOM): FIFe Category 4","asof":"2026-09-07","source":{"publisher":"Federation Internationale Feline (FIFe)","title":"Cat breeds -- Fully Recognised Breeds by category","url":"https://fifeweb.org/cats/breeds/","retrieved":"2026-09-07"},"method":{"type":"verbatim-quote","from":["data/fife-categories.json"],"how":"Parsed the four 'Fully Recognised Breeds - Category N' sections of the FIFe breeds page for '<code> - <breed name> Breed Profile' entries."},"status":"verified","license":"facts-only","caveats":["Category is a coat/morphology grouping FIFe itself uses, not a ranking (1=lowest number, 4=highest, no ordinal meaning)."]},{"id":"fife-category-sphynx","value":4,"unit":"FIFe category (1-4, coat/morphology grouping)","subject":"Sphynx (SPH): FIFe Category 4","asof":"2026-09-07","source":{"publisher":"Federation Internationale Feline (FIFe)","title":"Cat breeds -- Fully Recognised Breeds by category","url":"https://fifeweb.org/cats/breeds/","retrieved":"2026-09-07"},"method":{"type":"verbatim-quote","from":["data/fife-categories.json"],"how":"Parsed the four 'Fully Recognised Breeds - Category N' sections of the FIFe breeds page for '<code> - <breed name> Breed Profile' entries."},"status":"verified","license":"facts-only","caveats":["Category is a coat/morphology grouping FIFe itself uses, not a ranking (1=lowest number, 4=highest, no ordinal meaning)."]},{"id":"fife-category-thai","value":4,"unit":"FIFe category (1-4, coat/morphology grouping)","subject":"Thai (THA): FIFe Category 4","asof":"2026-09-07","source":{"publisher":"Federation Internationale Feline (FIFe)","title":"Cat breeds -- Fully Recognised Breeds by category","url":"https://fifeweb.org/cats/breeds/","retrieved":"2026-09-07"},"method":{"type":"verbatim-quote","from":["data/fife-categories.json"],"how":"Parsed the four 'Fully Recognised Breeds - Category N' sections of the FIFe breeds page for '<code> - <breed name> Breed Profile' entries."},"status":"verified","license":"facts-only","caveats":["Category is a coat/morphology grouping FIFe itself uses, not a ranking (1=lowest number, 4=highest, no ordinal meaning)."]},{"id":"origin-year-abyssinian","value":1882,"unit":"year (Wikidata inception, P571)","subject":"Abyssinian: year of inception recorded on Wikidata","asof":"2026-09-07","source":{"publisher":"Wikidata","title":"Cat breed (Q43577) inception (P571), SPARQL export","url":"https://query.wikidata.org/sparql","retrieved":"2026-09-07"},"method":{"type":"verbatim-quote","from":["data/wikidata-inception.json"],"how":"P571 (inception) statement value, year component only, for each breed item that has one."},"status":"preliminary","license":"CC0","caveats":["Only 3 of 143 queried breed items carry a Wikidata P571 statement at all -- this is a very sparse field, shown for the few breeds that have it, not a claim that other breeds lack a known origin year."]},{"id":"origin-year-bombay","value":1958,"unit":"year (Wikidata inception, P571)","subject":"Bombay: year of inception recorded on Wikidata","asof":"2026-09-07","source":{"publisher":"Wikidata","title":"Cat breed (Q43577) inception (P571), SPARQL export","url":"https://query.wikidata.org/sparql","retrieved":"2026-09-07"},"method":{"type":"verbatim-quote","from":["data/wikidata-inception.json"],"how":"P571 (inception) statement value, year component only, for each breed item that has one."},"status":"preliminary","license":"CC0","caveats":["Only 3 of 143 queried breed items carry a Wikidata P571 statement at all -- this is a very sparse field, shown for the few breeds that have it, not a claim that other breeds lack a known origin year."]},{"id":"origin-year-sphynx","value":1966,"unit":"year (Wikidata inception, P571)","subject":"Sphynx: year of inception recorded on Wikidata","asof":"2026-09-07","source":{"publisher":"Wikidata","title":"Cat breed (Q43577) inception (P571), SPARQL export","url":"https://query.wikidata.org/sparql","retrieved":"2026-09-07"},"method":{"type":"verbatim-quote","from":["data/wikidata-inception.json"],"how":"P571 (inception) statement value, year component only, for each breed item that has one."},"status":"preliminary","license":"CC0","caveats":["Only 3 of 143 queried breed items carry a Wikidata P571 statement at all -- this is a very sparse field, shown for the few breeds that have it, not a claim that other breeds lack a known origin year."]},{"id":"temperament-salonen2019-breed-effect-activity-level","value":376.98,"unit":"chi-square (breed effect, logistic regression, whole study)","subject":"Activity level: strength of breed effect across 19 cat breeds/breed groups (Salonen et al. 2019)","asof":"2026-09-07","source":{"publisher":"Scientific Reports (Springer Nature)","title":"Salonen M, Sulkama S, Mikkola S, Puurunen J, Hakanen E, Tiira K, Araujo C, Lohi H. Breed differences of heritable behaviour traits in cats. Sci Rep. 2019;9:7949.","url":"https://doi.org/10.1038/s41598-019-44324-x","retrieved":"2026-09-07"},"method":{"type":"verbatim-quote","from":["data/temperament-salonen2019.json"],"how":"Table 1 (breed-effect chi2/P value per trait, logistic regression, N=5726 except as noted per row, DF=18) and Table 2 (narrow-sense heritability with 95% HPD interval, three breeds x seven traits).","n":5726},"status":"verified","license":"CC-BY-4.0","caveats":["This is a whole-study test of whether breed affects activity level (P0.0002), not a single breed's score -- see the heritability figures for actual per-breed numbers, and the corpus README for named highest/lowest breeds per trait."]},{"id":"temperament-salonen2019-breed-effect-contact-to-people","value":146.68,"unit":"chi-square (breed effect, logistic regression, whole study)","subject":"Contact to people: strength of breed effect across 19 cat breeds/breed groups (Salonen et al. 2019)","asof":"2026-09-07","source":{"publisher":"Scientific Reports (Springer Nature)","title":"Salonen M, Sulkama S, Mikkola S, Puurunen J, Hakanen E, Tiira K, Araujo C, Lohi H. Breed differences of heritable behaviour traits in cats. Sci Rep. 2019;9:7949.","url":"https://doi.org/10.1038/s41598-019-44324-x","retrieved":"2026-09-07"},"method":{"type":"verbatim-quote","from":["data/temperament-salonen2019.json"],"how":"Table 1 (breed-effect chi2/P value per trait, logistic regression, N=5726 except as noted per row, DF=18) and Table 2 (narrow-sense heritability with 95% HPD interval, three breeds x seven traits).","n":5726},"status":"verified","license":"CC-BY-4.0","caveats":["This is a whole-study test of whether breed affects contact to people (P0.0005), not a single breed's score -- see the heritability figures for actual per-breed numbers, and the corpus README for named highest/lowest breeds per trait."]},{"id":"temperament-salonen2019-breed-effect-aggression-to-strangers","value":117.44,"unit":"chi-square (breed effect, logistic regression, whole study)","subject":"Aggression to strangers: strength of breed effect across 19 cat breeds/breed groups (Salonen et al. 2019)","asof":"2026-09-07","source":{"publisher":"Scientific Reports (Springer Nature)","title":"Salonen M, Sulkama S, Mikkola S, Puurunen J, Hakanen E, Tiira K, Araujo C, Lohi H. Breed differences of heritable behaviour traits in cats. Sci Rep. 2019;9:7949.","url":"https://doi.org/10.1038/s41598-019-44324-x","retrieved":"2026-09-07"},"method":{"type":"verbatim-quote","from":["data/temperament-salonen2019.json"],"how":"Table 1 (breed-effect chi2/P value per trait, logistic regression, N=5726 except as noted per row, DF=18) and Table 2 (narrow-sense heritability with 95% HPD interval, three breeds x seven traits).","n":5726},"status":"verified","license":"CC-BY-4.0","caveats":["This is a whole-study test of whether breed affects aggression to strangers (P0.001), not a single breed's score -- see the heritability figures for actual per-breed numbers, and the corpus README for named highest/lowest breeds per trait."]},{"id":"temperament-salonen2019-breed-effect-aggression-to-family-members","value":110.96,"unit":"chi-square (breed effect, logistic regression, whole study)","subject":"Aggression to family members: strength of breed effect across 19 cat breeds/breed groups (Salonen et al. 2019)","asof":"2026-09-07","source":{"publisher":"Scientific Reports (Springer Nature)","title":"Salonen M, Sulkama S, Mikkola S, Puurunen J, Hakanen E, Tiira K, Araujo C, Lohi H. Breed differences of heritable behaviour traits in cats. Sci Rep. 2019;9:7949.","url":"https://doi.org/10.1038/s41598-019-44324-x","retrieved":"2026-09-07"},"method":{"type":"verbatim-quote","from":["data/temperament-salonen2019.json"],"how":"Table 1 (breed-effect chi2/P value per trait, logistic regression, N=5726 except as noted per row, DF=18) and Table 2 (narrow-sense heritability with 95% HPD interval, three breeds x seven traits).","n":5726},"status":"verified","license":"CC-BY-4.0","caveats":["This is a whole-study test of whether breed affects aggression to family members (P0.001), not a single breed's score -- see the heritability figures for actual per-breed numbers, and the corpus README for named highest/lowest breeds per trait."]},{"id":"temperament-salonen2019-breed-effect-aggression-to-cats","value":104.12,"unit":"chi-square (breed effect, logistic regression, whole study)","subject":"Aggression to cats: strength of breed effect across 19 cat breeds/breed groups (Salonen et al. 2019)","asof":"2026-09-07","source":{"publisher":"Scientific Reports (Springer Nature)","title":"Salonen M, Sulkama S, Mikkola S, Puurunen J, Hakanen E, Tiira K, Araujo C, Lohi H. Breed differences of heritable behaviour traits in cats. Sci Rep. 2019;9:7949.","url":"https://doi.org/10.1038/s41598-019-44324-x","retrieved":"2026-09-07"},"method":{"type":"verbatim-quote","from":["data/temperament-salonen2019.json"],"how":"Table 1 (breed-effect chi2/P value per trait, logistic regression, N=5726 except as noted per row, DF=18) and Table 2 (narrow-sense heritability with 95% HPD interval, three breeds x seven traits).","n":5726},"status":"verified","license":"CC-BY-4.0","caveats":["This is a whole-study test of whether breed affects aggression to cats (P0.001), not a single breed's score -- see the heritability figures for actual per-breed numbers, and the corpus README for named highest/lowest breeds per trait."]},{"id":"temperament-salonen2019-breed-effect-shyness-towards-novel-objects","value":171.94,"unit":"chi-square (breed effect, logistic regression, whole study)","subject":"Shyness towards novel objects: strength of breed effect across 19 cat breeds/breed groups (Salonen et al. 2019)","asof":"2026-09-07","source":{"publisher":"Scientific Reports (Springer Nature)","title":"Salonen M, Sulkama S, Mikkola S, Puurunen J, Hakanen E, Tiira K, Araujo C, Lohi H. Breed differences of heritable behaviour traits in cats. Sci Rep. 2019;9:7949.","url":"https://doi.org/10.1038/s41598-019-44324-x","retrieved":"2026-09-07"},"method":{"type":"verbatim-quote","from":["data/temperament-salonen2019.json"],"how":"Table 1 (breed-effect chi2/P value per trait, logistic regression, N=5726 except as noted per row, DF=18) and Table 2 (narrow-sense heritability with 95% HPD interval, three breeds x seven traits).","n":5726},"status":"verified","license":"CC-BY-4.0","caveats":["This is a whole-study test of whether breed affects shyness towards novel objects (P0.0004), not a single breed's score -- see the heritability figures for actual per-breed numbers, and the corpus README for named highest/lowest breeds per trait."]},{"id":"temperament-salonen2019-breed-effect-shyness-towards-strangers","value":196.65,"unit":"chi-square (breed effect, logistic regression, whole study)","subject":"Shyness towards strangers: strength of breed effect across 19 cat breeds/breed groups (Salonen et al. 2019)","asof":"2026-09-07","source":{"publisher":"Scientific Reports (Springer Nature)","title":"Salonen M, Sulkama S, Mikkola S, Puurunen J, Hakanen E, Tiira K, Araujo C, Lohi H. Breed differences of heritable behaviour traits in cats. Sci Rep. 2019;9:7949.","url":"https://doi.org/10.1038/s41598-019-44324-x","retrieved":"2026-09-07"},"method":{"type":"verbatim-quote","from":["data/temperament-salonen2019.json"],"how":"Table 1 (breed-effect chi2/P value per trait, logistic regression, N=5726 except as noted per row, DF=18) and Table 2 (narrow-sense heritability with 95% HPD interval, three breeds x seven traits).","n":5726},"status":"verified","license":"CC-BY-4.0","caveats":["This is a whole-study test of whether breed affects shyness towards strangers (P0.0004), not a single breed's score -- see the heritability figures for actual per-breed numbers, and the corpus README for named highest/lowest breeds per trait."]},{"id":"temperament-salonen2019-breed-effect-wool-sucking","value":103.39,"unit":"chi-square (breed effect, logistic regression, whole study)","subject":"Wool sucking: strength of breed effect across 19 cat breeds/breed groups (Salonen et al. 2019)","asof":"2026-09-07","source":{"publisher":"Scientific Reports (Springer Nature)","title":"Salonen M, Sulkama S, Mikkola S, Puurunen J, Hakanen E, Tiira K, Araujo C, Lohi H. Breed differences of heritable behaviour traits in cats. Sci Rep. 2019;9:7949.","url":"https://doi.org/10.1038/s41598-019-44324-x","retrieved":"2026-09-07"},"method":{"type":"verbatim-quote","from":["data/temperament-salonen2019.json"],"how":"Table 1 (breed-effect chi2/P value per trait, logistic regression, N=5726 except as noted per row, DF=18) and Table 2 (narrow-sense heritability with 95% HPD interval, three breeds x seven traits).","n":4925},"status":"verified","license":"CC-BY-4.0","caveats":["This is a whole-study test of whether breed affects wool sucking (P0.001), not a single breed's score -- see the heritability figures for actual per-breed numbers, and the corpus README for named highest/lowest breeds per trait."]},{"id":"temperament-salonen2019-breed-effect-excessive-grooming","value":43.63,"unit":"chi-square (breed effect, logistic regression, whole study)","subject":"Excessive grooming: strength of breed effect across 19 cat breeds/breed groups (Salonen et al. 2019)","asof":"2026-09-07","source":{"publisher":"Scientific Reports (Springer Nature)","title":"Salonen M, Sulkama S, Mikkola S, Puurunen J, Hakanen E, Tiira K, Araujo C, Lohi H. Breed differences of heritable behaviour traits in cats. Sci Rep. 2019;9:7949.","url":"https://doi.org/10.1038/s41598-019-44324-x","retrieved":"2026-09-07"},"method":{"type":"verbatim-quote","from":["data/temperament-salonen2019.json"],"how":"Table 1 (breed-effect chi2/P value per trait, logistic regression, N=5726 except as noted per row, DF=18) and Table 2 (narrow-sense heritability with 95% HPD interval, three breeds x seven traits).","n":5683},"status":"verified","license":"CC-BY-4.0","caveats":["This is a whole-study test of whether breed affects excessive grooming (P0.027), not a single breed's score -- see the heritability figures for actual per-breed numbers, and the corpus README for named highest/lowest breeds per trait."]},{"id":"temperament-salonen2019-breed-effect-owner-evaluated-behaviour-problem","value":43.24,"unit":"chi-square (breed effect, logistic regression, whole study)","subject":"Owner-evaluated behaviour problem: strength of breed effect across 19 cat breeds/breed groups (Salonen et al. 2019)","asof":"2026-09-07","source":{"publisher":"Scientific Reports (Springer Nature)","title":"Salonen M, Sulkama S, Mikkola S, Puurunen J, Hakanen E, Tiira K, Araujo C, Lohi H. Breed differences of heritable behaviour traits in cats. Sci Rep. 2019;9:7949.","url":"https://doi.org/10.1038/s41598-019-44324-x","retrieved":"2026-09-07"},"method":{"type":"verbatim-quote","from":["data/temperament-salonen2019.json"],"how":"Table 1 (breed-effect chi2/P value per trait, logistic regression, N=5726 except as noted per row, DF=18) and Table 2 (narrow-sense heritability with 95% HPD interval, three breeds x seven traits).","n":5550},"status":"verified","license":"CC-BY-4.0","caveats":["This is a whole-study test of whether breed affects owner-evaluated behaviour problem (P0.018), not a single breed's score -- see the heritability figures for actual per-breed numbers, and the corpus README for named highest/lowest breeds per trait."]},{"id":"temperament-salonen2019-heritability-ragdoll-activity-level","value":0.47,"unit":"narrow-sense heritability (h^2, 0-1)","subject":"Ragdoll: heritability of activity level","asof":"2026-09-07","source":{"publisher":"Scientific Reports (Springer Nature)","title":"Salonen M, Sulkama S, Mikkola S, Puurunen J, Hakanen E, Tiira K, Araujo C, Lohi H. Breed differences of heritable behaviour traits in cats. Sci Rep. 2019;9:7949.","url":"https://doi.org/10.1038/s41598-019-44324-x","retrieved":"2026-09-07"},"method":{"type":"verbatim-quote","from":["data/temperament-salonen2019.json"],"how":"Table 2, narrow-sense heritability with 95% highest-posterior-density interval."},"status":"verified","license":"CC-BY-4.0","caveats":["95% HPD interval 0.31-0.62.","Estimated only for the three breeds with sufficient within-breed relatedness data (Ragdoll, Maine Coon, Turkish Van); not available for other breeds."]},{"id":"temperament-salonen2019-heritability-maine-coon-activity-level","value":0.51,"unit":"narrow-sense heritability (h^2, 0-1)","subject":"Maine Coon: heritability of activity level","asof":"2026-09-07","source":{"publisher":"Scientific Reports (Springer Nature)","title":"Salonen M, Sulkama S, Mikkola S, Puurunen J, Hakanen E, Tiira K, Araujo C, Lohi H. Breed differences of heritable behaviour traits in cats. Sci Rep. 2019;9:7949.","url":"https://doi.org/10.1038/s41598-019-44324-x","retrieved":"2026-09-07"},"method":{"type":"verbatim-quote","from":["data/temperament-salonen2019.json"],"how":"Table 2, narrow-sense heritability with 95% highest-posterior-density interval."},"status":"verified","license":"CC-BY-4.0","caveats":["95% HPD interval 0.37-0.67.","Estimated only for the three breeds with sufficient within-breed relatedness data (Ragdoll, Maine Coon, Turkish Van); not available for other breeds."]},{"id":"temperament-salonen2019-heritability-turkish-van-activity-level","value":0.51,"unit":"narrow-sense heritability (h^2, 0-1)","subject":"Turkish Van: heritability of activity level","asof":"2026-09-07","source":{"publisher":"Scientific Reports (Springer Nature)","title":"Salonen M, Sulkama S, Mikkola S, Puurunen J, Hakanen E, Tiira K, Araujo C, Lohi H. Breed differences of heritable behaviour traits in cats. Sci Rep. 2019;9:7949.","url":"https://doi.org/10.1038/s41598-019-44324-x","retrieved":"2026-09-07"},"method":{"type":"verbatim-quote","from":["data/temperament-salonen2019.json"],"how":"Table 2, narrow-sense heritability with 95% highest-posterior-density interval."},"status":"verified","license":"CC-BY-4.0","caveats":["95% HPD interval 0.36-0.68.","Estimated only for the three breeds with sufficient within-breed relatedness data (Ragdoll, Maine Coon, Turkish Van); not available for other breeds."]},{"id":"temperament-salonen2019-heritability-ragdoll-contact-to-people","value":0.42,"unit":"narrow-sense heritability (h^2, 0-1)","subject":"Ragdoll: heritability of contact to people","asof":"2026-09-07","source":{"publisher":"Scientific Reports (Springer Nature)","title":"Salonen M, Sulkama S, Mikkola S, Puurunen J, Hakanen E, Tiira K, Araujo C, Lohi H. Breed differences of heritable behaviour traits in cats. Sci Rep. 2019;9:7949.","url":"https://doi.org/10.1038/s41598-019-44324-x","retrieved":"2026-09-07"},"method":{"type":"verbatim-quote","from":["data/temperament-salonen2019.json"],"how":"Table 2, narrow-sense heritability with 95% highest-posterior-density interval."},"status":"verified","license":"CC-BY-4.0","caveats":["95% HPD interval 0.27-0.56.","Estimated only for the three breeds with sufficient within-breed relatedness data (Ragdoll, Maine Coon, Turkish Van); not available for other breeds."]},{"id":"temperament-salonen2019-heritability-maine-coon-contact-to-people","value":0.5,"unit":"narrow-sense heritability (h^2, 0-1)","subject":"Maine Coon: heritability of contact to people","asof":"2026-09-07","source":{"publisher":"Scientific Reports (Springer Nature)","title":"Salonen M, Sulkama S, Mikkola S, Puurunen J, Hakanen E, Tiira K, Araujo C, Lohi H. Breed differences of heritable behaviour traits in cats. Sci Rep. 2019;9:7949.","url":"https://doi.org/10.1038/s41598-019-44324-x","retrieved":"2026-09-07"},"method":{"type":"verbatim-quote","from":["data/temperament-salonen2019.json"],"how":"Table 2, narrow-sense heritability with 95% highest-posterior-density interval."},"status":"verified","license":"CC-BY-4.0","caveats":["95% HPD interval 0.35-0.65.","Estimated only for the three breeds with sufficient within-breed relatedness data (Ragdoll, Maine Coon, Turkish Van); not available for other breeds."]},{"id":"temperament-salonen2019-heritability-turkish-van-contact-to-people","value":0.5,"unit":"narrow-sense heritability (h^2, 0-1)","subject":"Turkish Van: heritability of contact to people","asof":"2026-09-07","source":{"publisher":"Scientific Reports (Springer Nature)","title":"Salonen M, Sulkama S, Mikkola S, Puurunen J, Hakanen E, Tiira K, Araujo C, Lohi H. Breed differences of heritable behaviour traits in cats. Sci Rep. 2019;9:7949.","url":"https://doi.org/10.1038/s41598-019-44324-x","retrieved":"2026-09-07"},"method":{"type":"verbatim-quote","from":["data/temperament-salonen2019.json"],"how":"Table 2, narrow-sense heritability with 95% highest-posterior-density interval."},"status":"verified","license":"CC-BY-4.0","caveats":["95% HPD interval 0.32-0.68.","Estimated only for the three breeds with sufficient within-breed relatedness data (Ragdoll, Maine Coon, Turkish Van); not available for other breeds."]},{"id":"temperament-salonen2019-heritability-ragdoll-aggression-to-strangers","value":0.53,"unit":"narrow-sense heritability (h^2, 0-1)","subject":"Ragdoll: heritability of aggression to strangers","asof":"2026-09-07","source":{"publisher":"Scientific Reports (Springer Nature)","title":"Salonen M, Sulkama S, Mikkola S, Puurunen J, Hakanen E, Tiira K, Araujo C, Lohi H. Breed differences of heritable behaviour traits in cats. Sci Rep. 2019;9:7949.","url":"https://doi.org/10.1038/s41598-019-44324-x","retrieved":"2026-09-07"},"method":{"type":"verbatim-quote","from":["data/temperament-salonen2019.json"],"how":"Table 2, narrow-sense heritability with 95% highest-posterior-density interval."},"status":"verified","license":"CC-BY-4.0","caveats":["95% HPD interval 0.43-0.64.","Estimated only for the three breeds with sufficient within-breed relatedness data (Ragdoll, Maine Coon, Turkish Van); not available for other breeds."]},{"id":"temperament-salonen2019-heritability-maine-coon-aggression-to-strangers","value":0.51,"unit":"narrow-sense heritability (h^2, 0-1)","subject":"Maine Coon: heritability of aggression to strangers","asof":"2026-09-07","source":{"publisher":"Scientific Reports (Springer Nature)","title":"Salonen M, Sulkama S, Mikkola S, Puurunen J, Hakanen E, Tiira K, Araujo C, Lohi H. Breed differences of heritable behaviour traits in cats. Sci Rep. 2019;9:7949.","url":"https://doi.org/10.1038/s41598-019-44324-x","retrieved":"2026-09-07"},"method":{"type":"verbatim-quote","from":["data/temperament-salonen2019.json"],"how":"Table 2, narrow-sense heritability with 95% highest-posterior-density interval."},"status":"verified","license":"CC-BY-4.0","caveats":["95% HPD interval 0.41-0.6.","Estimated only for the three breeds with sufficient within-breed relatedness data (Ragdoll, Maine Coon, Turkish Van); not available for other breeds."]},{"id":"temperament-salonen2019-heritability-turkish-van-aggression-to-strangers","value":0.53,"unit":"narrow-sense heritability (h^2, 0-1)","subject":"Turkish Van: heritability of aggression to strangers","asof":"2026-09-07","source":{"publisher":"Scientific Reports (Springer Nature)","title":"Salonen M, Sulkama S, Mikkola S, Puurunen J, Hakanen E, Tiira K, Araujo C, Lohi H. Breed differences of heritable behaviour traits in cats. Sci Rep. 2019;9:7949.","url":"https://doi.org/10.1038/s41598-019-44324-x","retrieved":"2026-09-07"},"method":{"type":"verbatim-quote","from":["data/temperament-salonen2019.json"],"how":"Table 2, narrow-sense heritability with 95% highest-posterior-density interval."},"status":"verified","license":"CC-BY-4.0","caveats":["95% HPD interval 0.37-0.68.","Estimated only for the three breeds with sufficient within-breed relatedness data (Ragdoll, Maine Coon, Turkish Van); not available for other breeds."]},{"id":"temperament-salonen2019-heritability-ragdoll-aggression-to-family-members","value":0.53,"unit":"narrow-sense heritability (h^2, 0-1)","subject":"Ragdoll: heritability of aggression to family members","asof":"2026-09-07","source":{"publisher":"Scientific Reports (Springer Nature)","title":"Salonen M, Sulkama S, Mikkola S, Puurunen J, Hakanen E, Tiira K, Araujo C, Lohi H. Breed differences of heritable behaviour traits in cats. Sci Rep. 2019;9:7949.","url":"https://doi.org/10.1038/s41598-019-44324-x","retrieved":"2026-09-07"},"method":{"type":"verbatim-quote","from":["data/temperament-salonen2019.json"],"how":"Table 2, narrow-sense heritability with 95% highest-posterior-density interval."},"status":"verified","license":"CC-BY-4.0","caveats":["95% HPD interval 0.45-0.61.","Estimated only for the three breeds with sufficient within-breed relatedness data (Ragdoll, Maine Coon, Turkish Van); not available for other breeds."]},{"id":"temperament-salonen2019-heritability-maine-coon-aggression-to-family-members","value":0.48,"unit":"narrow-sense heritability (h^2, 0-1)","subject":"Maine Coon: heritability of aggression to family members","asof":"2026-09-07","source":{"publisher":"Scientific Reports (Springer Nature)","title":"Salonen M, Sulkama S, Mikkola S, Puurunen J, Hakanen E, Tiira K, Araujo C, Lohi H. Breed differences of heritable behaviour traits in cats. Sci Rep. 2019;9:7949.","url":"https://doi.org/10.1038/s41598-019-44324-x","retrieved":"2026-09-07"},"method":{"type":"verbatim-quote","from":["data/temperament-salonen2019.json"],"how":"Table 2, narrow-sense heritability with 95% highest-posterior-density interval."},"status":"verified","license":"CC-BY-4.0","caveats":["95% HPD interval 0.38-0.59.","Estimated only for the three breeds with sufficient within-breed relatedness data (Ragdoll, Maine Coon, Turkish Van); not available for other breeds."]},{"id":"temperament-salonen2019-heritability-turkish-van-aggression-to-family-members","value":0.51,"unit":"narrow-sense heritability (h^2, 0-1)","subject":"Turkish Van: heritability of aggression to family members","asof":"2026-09-07","source":{"publisher":"Scientific Reports (Springer Nature)","title":"Salonen M, Sulkama S, Mikkola S, Puurunen J, Hakanen E, Tiira K, Araujo C, Lohi H. Breed differences of heritable behaviour traits in cats. Sci Rep. 2019;9:7949.","url":"https://doi.org/10.1038/s41598-019-44324-x","retrieved":"2026-09-07"},"method":{"type":"verbatim-quote","from":["data/temperament-salonen2019.json"],"how":"Table 2, narrow-sense heritability with 95% highest-posterior-density interval."},"status":"verified","license":"CC-BY-4.0","caveats":["95% HPD interval 0.36-0.67.","Estimated only for the three breeds with sufficient within-breed relatedness data (Ragdoll, Maine Coon, Turkish Van); not available for other breeds."]},{"id":"temperament-salonen2019-heritability-ragdoll-aggression-to-other-cats","value":0.49,"unit":"narrow-sense heritability (h^2, 0-1)","subject":"Ragdoll: heritability of aggression to other cats","asof":"2026-09-07","source":{"publisher":"Scientific Reports (Springer Nature)","title":"Salonen M, Sulkama S, Mikkola S, Puurunen J, Hakanen E, Tiira K, Araujo C, Lohi H. Breed differences of heritable behaviour traits in cats. Sci Rep. 2019;9:7949.","url":"https://doi.org/10.1038/s41598-019-44324-x","retrieved":"2026-09-07"},"method":{"type":"verbatim-quote","from":["data/temperament-salonen2019.json"],"how":"Table 2, narrow-sense heritability with 95% highest-posterior-density interval."},"status":"verified","license":"CC-BY-4.0","caveats":["95% HPD interval 0.33-0.63.","Estimated only for the three breeds with sufficient within-breed relatedness data (Ragdoll, Maine Coon, Turkish Van); not available for other breeds."]},{"id":"temperament-salonen2019-heritability-maine-coon-aggression-to-other-cats","value":0.46,"unit":"narrow-sense heritability (h^2, 0-1)","subject":"Maine Coon: heritability of aggression to other cats","asof":"2026-09-07","source":{"publisher":"Scientific Reports (Springer Nature)","title":"Salonen M, Sulkama S, Mikkola S, Puurunen J, Hakanen E, Tiira K, Araujo C, Lohi H. Breed differences of heritable behaviour traits in cats. Sci Rep. 2019;9:7949.","url":"https://doi.org/10.1038/s41598-019-44324-x","retrieved":"2026-09-07"},"method":{"type":"verbatim-quote","from":["data/temperament-salonen2019.json"],"how":"Table 2, narrow-sense heritability with 95% highest-posterior-density interval."},"status":"verified","license":"CC-BY-4.0","caveats":["95% HPD interval 0.33-0.59.","Estimated only for the three breeds with sufficient within-breed relatedness data (Ragdoll, Maine Coon, Turkish Van); not available for other breeds."]},{"id":"temperament-salonen2019-heritability-turkish-van-aggression-to-other-cats","value":0.53,"unit":"narrow-sense heritability (h^2, 0-1)","subject":"Turkish Van: heritability of aggression to other cats","asof":"2026-09-07","source":{"publisher":"Scientific Reports (Springer Nature)","title":"Salonen M, Sulkama S, Mikkola S, Puurunen J, Hakanen E, Tiira K, Araujo C, Lohi H. Breed differences of heritable behaviour traits in cats. Sci Rep. 2019;9:7949.","url":"https://doi.org/10.1038/s41598-019-44324-x","retrieved":"2026-09-07"},"method":{"type":"verbatim-quote","from":["data/temperament-salonen2019.json"],"how":"Table 2, narrow-sense heritability with 95% highest-posterior-density interval."},"status":"verified","license":"CC-BY-4.0","caveats":["95% HPD interval 0.34-0.73.","Estimated only for the three breeds with sufficient within-breed relatedness data (Ragdoll, Maine Coon, Turkish Van); not available for other breeds."]},{"id":"temperament-salonen2019-heritability-ragdoll-shyness-towards-novel-objects","value":0.4,"unit":"narrow-sense heritability (h^2, 0-1)","subject":"Ragdoll: heritability of shyness towards novel objects","asof":"2026-09-07","source":{"publisher":"Scientific Reports (Springer Nature)","title":"Salonen M, Sulkama S, Mikkola S, Puurunen J, Hakanen E, Tiira K, Araujo C, Lohi H. Breed differences of heritable behaviour traits in cats. Sci Rep. 2019;9:7949.","url":"https://doi.org/10.1038/s41598-019-44324-x","retrieved":"2026-09-07"},"method":{"type":"verbatim-quote","from":["data/temperament-salonen2019.json"],"how":"Table 2, narrow-sense heritability with 95% highest-posterior-density interval."},"status":"verified","license":"CC-BY-4.0","caveats":["95% HPD interval 0.22-0.58.","Estimated only for the three breeds with sufficient within-breed relatedness data (Ragdoll, Maine Coon, Turkish Van); not available for other breeds."]},{"id":"temperament-salonen2019-heritability-maine-coon-shyness-towards-novel-objects","value":0.49,"unit":"narrow-sense heritability (h^2, 0-1)","subject":"Maine Coon: heritability of shyness towards novel objects","asof":"2026-09-07","source":{"publisher":"Scientific Reports (Springer Nature)","title":"Salonen M, Sulkama S, Mikkola S, Puurunen J, Hakanen E, Tiira K, Araujo C, Lohi H. Breed differences of heritable behaviour traits in cats. Sci Rep. 2019;9:7949.","url":"https://doi.org/10.1038/s41598-019-44324-x","retrieved":"2026-09-07"},"method":{"type":"verbatim-quote","from":["data/temperament-salonen2019.json"],"how":"Table 2, narrow-sense heritability with 95% highest-posterior-density interval."},"status":"verified","license":"CC-BY-4.0","caveats":["95% HPD interval 0.33-0.68.","Estimated only for the three breeds with sufficient within-breed relatedness data (Ragdoll, Maine Coon, Turkish Van); not available for other breeds."]},{"id":"temperament-salonen2019-heritability-turkish-van-shyness-towards-novel-objects","value":0.43,"unit":"narrow-sense heritability (h^2, 0-1)","subject":"Turkish Van: heritability of shyness towards novel objects","asof":"2026-09-07","source":{"publisher":"Scientific Reports (Springer Nature)","title":"Salonen M, Sulkama S, Mikkola S, Puurunen J, Hakanen E, Tiira K, Araujo C, Lohi H. Breed differences of heritable behaviour traits in cats. Sci Rep. 2019;9:7949.","url":"https://doi.org/10.1038/s41598-019-44324-x","retrieved":"2026-09-07"},"method":{"type":"verbatim-quote","from":["data/temperament-salonen2019.json"],"how":"Table 2, narrow-sense heritability with 95% highest-posterior-density interval."},"status":"verified","license":"CC-BY-4.0","caveats":["95% HPD interval 0.23-0.63.","Estimated only for the three breeds with sufficient within-breed relatedness data (Ragdoll, Maine Coon, Turkish Van); not available for other breeds."]},{"id":"temperament-salonen2019-heritability-ragdoll-shyness-towards-strangers","value":0.4,"unit":"narrow-sense heritability (h^2, 0-1)","subject":"Ragdoll: heritability of shyness towards strangers","asof":"2026-09-07","source":{"publisher":"Scientific Reports (Springer Nature)","title":"Salonen M, Sulkama S, Mikkola S, Puurunen J, Hakanen E, Tiira K, Araujo C, Lohi H. Breed differences of heritable behaviour traits in cats. Sci Rep. 2019;9:7949.","url":"https://doi.org/10.1038/s41598-019-44324-x","retrieved":"2026-09-07"},"method":{"type":"verbatim-quote","from":["data/temperament-salonen2019.json"],"how":"Table 2, narrow-sense heritability with 95% highest-posterior-density interval."},"status":"verified","license":"CC-BY-4.0","caveats":["95% HPD interval 0.22-0.57.","Estimated only for the three breeds with sufficient within-breed relatedness data (Ragdoll, Maine Coon, Turkish Van); not available for other breeds."]},{"id":"temperament-salonen2019-heritability-maine-coon-shyness-towards-strangers","value":0.47,"unit":"narrow-sense heritability (h^2, 0-1)","subject":"Maine Coon: heritability of shyness towards strangers","asof":"2026-09-07","source":{"publisher":"Scientific Reports (Springer Nature)","title":"Salonen M, Sulkama S, Mikkola S, Puurunen J, Hakanen E, Tiira K, Araujo C, Lohi H. Breed differences of heritable behaviour traits in cats. Sci Rep. 2019;9:7949.","url":"https://doi.org/10.1038/s41598-019-44324-x","retrieved":"2026-09-07"},"method":{"type":"verbatim-quote","from":["data/temperament-salonen2019.json"],"how":"Table 2, narrow-sense heritability with 95% highest-posterior-density interval."},"status":"verified","license":"CC-BY-4.0","caveats":["95% HPD interval 0.3-0.67.","Estimated only for the three breeds with sufficient within-breed relatedness data (Ragdoll, Maine Coon, Turkish Van); not available for other breeds."]},{"id":"temperament-salonen2019-heritability-turkish-van-shyness-towards-strangers","value":0.47,"unit":"narrow-sense heritability (h^2, 0-1)","subject":"Turkish Van: heritability of shyness towards strangers","asof":"2026-09-07","source":{"publisher":"Scientific Reports (Springer Nature)","title":"Salonen M, Sulkama S, Mikkola S, Puurunen J, Hakanen E, Tiira K, Araujo C, Lohi H. Breed differences of heritable behaviour traits in cats. Sci Rep. 2019;9:7949.","url":"https://doi.org/10.1038/s41598-019-44324-x","retrieved":"2026-09-07"},"method":{"type":"verbatim-quote","from":["data/temperament-salonen2019.json"],"how":"Table 2, narrow-sense heritability with 95% highest-posterior-density interval."},"status":"verified","license":"CC-BY-4.0","caveats":["95% HPD interval 0.28-0.71.","Estimated only for the three breeds with sufficient within-breed relatedness data (Ragdoll, Maine Coon, Turkish Van); not available for other breeds."]},{"id":"temperament-mikkola2021-breed-effect-fearfulness","value":291.85,"unit":"chi-square (Kruskal-Wallis breed effect, whole study)","subject":"Fearfulness: strength of breed effect (Mikkola et al. 2021)","asof":"2026-09-07","source":{"publisher":"Animals (MDPI)","title":"Mikkola S, Salonen M, Puurunen J, Hakanen E, Sulkama S, Araujo C, Lohi H. Reliability and Validity of Seven Feline Behavior and Personality Traits. Animals. 2021;11(7):1991.","url":"https://doi.org/10.3390/ani11071991","retrieved":"2026-09-07"},"method":{"type":"verbatim-quote","from":["data/temperament-mikkola2021.json"],"how":"Table 5, breed-effect Kruskal-Wallis chi2/P value per personality/behaviour factor, N=4316, DF=25.","n":4316},"status":"verified","license":"CC-BY-4.0","caveats":["Whole-study test of whether breed affects fearfulness (&lt;0.0001), not a single breed's score."]},{"id":"temperament-mikkola2021-breed-effect-activity-playfulness","value":232.23,"unit":"chi-square (Kruskal-Wallis breed effect, whole study)","subject":"Activity/playfulness: strength of breed effect (Mikkola et al. 2021)","asof":"2026-09-07","source":{"publisher":"Animals (MDPI)","title":"Mikkola S, Salonen M, Puurunen J, Hakanen E, Sulkama S, Araujo C, Lohi H. Reliability and Validity of Seven Feline Behavior and Personality Traits. Animals. 2021;11(7):1991.","url":"https://doi.org/10.3390/ani11071991","retrieved":"2026-09-07"},"method":{"type":"verbatim-quote","from":["data/temperament-mikkola2021.json"],"how":"Table 5, breed-effect Kruskal-Wallis chi2/P value per personality/behaviour factor, N=4316, DF=25.","n":4316},"status":"verified","license":"CC-BY-4.0","caveats":["Whole-study test of whether breed affects activity/playfulness (&lt;0.0001), not a single breed's score."]},{"id":"temperament-mikkola2021-breed-effect-aggression-toward-humans","value":324.94,"unit":"chi-square (Kruskal-Wallis breed effect, whole study)","subject":"Aggression toward humans: strength of breed effect (Mikkola et al. 2021)","asof":"2026-09-07","source":{"publisher":"Animals (MDPI)","title":"Mikkola S, Salonen M, Puurunen J, Hakanen E, Sulkama S, Araujo C, Lohi H. Reliability and Validity of Seven Feline Behavior and Personality Traits. Animals. 2021;11(7):1991.","url":"https://doi.org/10.3390/ani11071991","retrieved":"2026-09-07"},"method":{"type":"verbatim-quote","from":["data/temperament-mikkola2021.json"],"how":"Table 5, breed-effect Kruskal-Wallis chi2/P value per personality/behaviour factor, N=4316, DF=25.","n":4316},"status":"verified","license":"CC-BY-4.0","caveats":["Whole-study test of whether breed affects aggression toward humans (&lt;0.0001), not a single breed's score."]},{"id":"temperament-mikkola2021-breed-effect-sociability-toward-humans","value":114.27,"unit":"chi-square (Kruskal-Wallis breed effect, whole study)","subject":"Sociability toward humans: strength of breed effect (Mikkola et al. 2021)","asof":"2026-09-07","source":{"publisher":"Animals (MDPI)","title":"Mikkola S, Salonen M, Puurunen J, Hakanen E, Sulkama S, Araujo C, Lohi H. Reliability and Validity of Seven Feline Behavior and Personality Traits. Animals. 2021;11(7):1991.","url":"https://doi.org/10.3390/ani11071991","retrieved":"2026-09-07"},"method":{"type":"verbatim-quote","from":["data/temperament-mikkola2021.json"],"how":"Table 5, breed-effect Kruskal-Wallis chi2/P value per personality/behaviour factor, N=4316, DF=25.","n":4316},"status":"verified","license":"CC-BY-4.0","caveats":["Whole-study test of whether breed affects sociability toward humans (&lt;0.0001), not a single breed's score."]},{"id":"temperament-mikkola2021-breed-effect-sociability-toward-cats","value":216.38,"unit":"chi-square (Kruskal-Wallis breed effect, whole study)","subject":"Sociability toward cats: strength of breed effect (Mikkola et al. 2021)","asof":"2026-09-07","source":{"publisher":"Animals (MDPI)","title":"Mikkola S, Salonen M, Puurunen J, Hakanen E, Sulkama S, Araujo C, Lohi H. Reliability and Validity of Seven Feline Behavior and Personality Traits. Animals. 2021;11(7):1991.","url":"https://doi.org/10.3390/ani11071991","retrieved":"2026-09-07"},"method":{"type":"verbatim-quote","from":["data/temperament-mikkola2021.json"],"how":"Table 5, breed-effect Kruskal-Wallis chi2/P value per personality/behaviour factor, N=4316, DF=25.","n":4316},"status":"verified","license":"CC-BY-4.0","caveats":["Whole-study test of whether breed affects sociability toward cats (&lt;0.0001), not a single breed's score."]},{"id":"temperament-mikkola2021-breed-effect-excessive-grooming","value":104.73,"unit":"chi-square (Kruskal-Wallis breed effect, whole study)","subject":"Excessive grooming: strength of breed effect (Mikkola et al. 2021)","asof":"2026-09-07","source":{"publisher":"Animals (MDPI)","title":"Mikkola S, Salonen M, Puurunen J, Hakanen E, Sulkama S, Araujo C, Lohi H. Reliability and Validity of Seven Feline Behavior and Personality Traits. Animals. 2021;11(7):1991.","url":"https://doi.org/10.3390/ani11071991","retrieved":"2026-09-07"},"method":{"type":"verbatim-quote","from":["data/temperament-mikkola2021.json"],"how":"Table 5, breed-effect Kruskal-Wallis chi2/P value per personality/behaviour factor, N=4316, DF=25.","n":4316},"status":"verified","license":"CC-BY-4.0","caveats":["Whole-study test of whether breed affects excessive grooming (&lt;0.0001), not a single breed's score."]},{"id":"temperament-mikkola2021-breed-effect-litterbox-issues","value":124.67,"unit":"chi-square (Kruskal-Wallis breed effect, whole study)","subject":"Litterbox issues: strength of breed effect (Mikkola et al. 2021)","asof":"2026-09-07","source":{"publisher":"Animals (MDPI)","title":"Mikkola S, Salonen M, Puurunen J, Hakanen E, Sulkama S, Araujo C, Lohi H. Reliability and Validity of Seven Feline Behavior and Personality Traits. Animals. 2021;11(7):1991.","url":"https://doi.org/10.3390/ani11071991","retrieved":"2026-09-07"},"method":{"type":"verbatim-quote","from":["data/temperament-mikkola2021.json"],"how":"Table 5, breed-effect Kruskal-Wallis chi2/P value per personality/behaviour factor, N=4316, DF=25.","n":4316},"status":"verified","license":"CC-BY-4.0","caveats":["Whole-study test of whether breed affects litterbox issues (&lt;0.0001), not a single breed's score."]},{"id":"headline-most-fearful-breed-salonen2019","value":196.65,"unit":"chi-square (breed effect, logistic regression, whole study)","subject":"Russian Blue: highest reported probability for shyness towards strangers among 19 cat breeds/breed groups; Burmese had the lowest (Salonen et al. 2019)","asof":"2026-09-07","source":{"publisher":"Scientific Reports (Springer Nature)","title":"Salonen M, Sulkama S, Mikkola S, Puurunen J, Hakanen E, Tiira K, Araujo C, Lohi H. Breed differences of heritable behaviour traits in cats. Sci Rep. 2019;9:7949.","url":"https://doi.org/10.1038/s41598-019-44324-x","retrieved":"2026-09-07"},"method":{"type":"computed","from":["temperament-salonen2019-breed-effect-shyness-towards-strangers"],"how":"Named highest/lowest breed from the paper's own Results text; value is that trait's Table 1 breed-effect chi2, not a per-breed score (the paper does not publish per-breed probabilities as text/table data -- see data/temperament-salonen2019.json's notes).","n":5726},"status":"verified","license":"CC-BY-4.0","caveats":["The numeric value is the whole-study breed-effect chi2 for this trait, not a Russian Blue-specific score -- read the subject text, not the number, for the named breeds."]},{"id":"disorder-prevalence-oneill2023-dental-disorder","value":21.2,"unit":"percent of cats with the disorder recorded","subject":"Dental disorder: prevalence in UK primary-care cats, general population (O'Neill et al. 2023)","asof":"2026-09-07","source":{"publisher":"Journal of Feline Medicine and Surgery (SAGE)","title":"O'Neill DG, Baral L, Church DB, Brodbelt DC, Pegram C. Commonly diagnosed disorders in domestic cats in the UK and their associations with sex and age. J Feline Med Surg. 2023;25(7).","url":"https://doi.org/10.1177/1098612X231155016","retrieved":"2026-09-07"},"method":{"type":"verbatim-quote","from":["data/health-oneill2023-disorders.json"],"how":"Table 2, prevalence of the 30 most common disorders at grouped-level diagnostic precision, random sample of 18,249 cats under UK primary veterinary care during 2019 (VetCompass).","n":3870},"status":"verified","license":"CC-BY-4.0","caveats":["95% CI 20.62-21.81%. General cat population, not breed-specific (study n=18249)."]},{"id":"disorder-prevalence-oneill2023-obesity","value":11.6,"unit":"percent of cats with the disorder recorded","subject":"Obesity: prevalence in UK primary-care cats, general population (O'Neill et al. 2023)","asof":"2026-09-07","source":{"publisher":"Journal of Feline Medicine and Surgery (SAGE)","title":"O'Neill DG, Baral L, Church DB, Brodbelt DC, Pegram C. Commonly diagnosed disorders in domestic cats in the UK and their associations with sex and age. J Feline Med Surg. 2023;25(7).","url":"https://doi.org/10.1177/1098612X231155016","retrieved":"2026-09-07"},"method":{"type":"verbatim-quote","from":["data/health-oneill2023-disorders.json"],"how":"Table 2, prevalence of the 30 most common disorders at grouped-level diagnostic precision, random sample of 18,249 cats under UK primary veterinary care during 2019 (VetCompass).","n":2114},"status":"verified","license":"CC-BY-4.0","caveats":["95% CI 11.12-12.06%. General cat population, not breed-specific (study n=18249)."]},{"id":"disorder-prevalence-oneill2023-skin-disorder","value":9.6,"unit":"percent of cats with the disorder recorded","subject":"Skin disorder: prevalence in UK primary-care cats, general population (O'Neill et al. 2023)","asof":"2026-09-07","source":{"publisher":"Journal of Feline Medicine and Surgery (SAGE)","title":"O'Neill DG, Baral L, Church DB, Brodbelt DC, Pegram C. Commonly diagnosed disorders in domestic cats in the UK and their associations with sex and age. J Feline Med Surg. 2023;25(7).","url":"https://doi.org/10.1177/1098612X231155016","retrieved":"2026-09-07"},"method":{"type":"verbatim-quote","from":["data/health-oneill2023-disorders.json"],"how":"Table 2, prevalence of the 30 most common disorders at grouped-level diagnostic precision, random sample of 18,249 cats under UK primary veterinary care during 2019 (VetCompass).","n":1757},"status":"verified","license":"CC-BY-4.0","caveats":["95% CI 9.2-10.07%. General cat population, not breed-specific (study n=18249)."]},{"id":"disorder-prevalence-oneill2023-enteropathy","value":8.5,"unit":"percent of cats with the disorder recorded","subject":"Enteropathy: prevalence in UK primary-care cats, general population (O'Neill et al. 2023)","asof":"2026-09-07","source":{"publisher":"Journal of Feline Medicine and Surgery (SAGE)","title":"O'Neill DG, Baral L, Church DB, Brodbelt DC, Pegram C. Commonly diagnosed disorders in domestic cats in the UK and their associations with sex and age. J Feline Med Surg. 2023;25(7).","url":"https://doi.org/10.1177/1098612X231155016","retrieved":"2026-09-07"},"method":{"type":"verbatim-quote","from":["data/health-oneill2023-disorders.json"],"how":"Table 2, prevalence of the 30 most common disorders at grouped-level diagnostic precision, random sample of 18,249 cats under UK primary veterinary care during 2019 (VetCompass).","n":1552},"status":"verified","license":"CC-BY-4.0","caveats":["95% CI 8.1-8.92%. General cat population, not breed-specific (study n=18249)."]},{"id":"disorder-prevalence-oneill2023-parasite-infestation","value":6.3,"unit":"percent of cats with the disorder recorded","subject":"Parasite infestation: prevalence in UK primary-care cats, general population (O'Neill et al. 2023)","asof":"2026-09-07","source":{"publisher":"Journal of Feline Medicine and Surgery (SAGE)","title":"O'Neill DG, Baral L, Church DB, Brodbelt DC, Pegram C. Commonly diagnosed disorders in domestic cats in the UK and their associations with sex and age. J Feline Med Surg. 2023;25(7).","url":"https://doi.org/10.1177/1098612X231155016","retrieved":"2026-09-07"},"method":{"type":"verbatim-quote","from":["data/health-oneill2023-disorders.json"],"how":"Table 2, prevalence of the 30 most common disorders at grouped-level diagnostic precision, random sample of 18,249 cats under UK primary veterinary care during 2019 (VetCompass).","n":1150},"status":"verified","license":"CC-BY-4.0","caveats":["95% CI 5.95-6.66%. General cat population, not breed-specific (study n=18249)."]},{"id":"disorder-prevalence-oneill2023-heart-disease","value":6.0,"unit":"percent of cats with the disorder recorded","subject":"Heart disease: prevalence in UK primary-care cats, general population (O'Neill et al. 2023)","asof":"2026-09-07","source":{"publisher":"Journal of Feline Medicine and Surgery (SAGE)","title":"O'Neill DG, Baral L, Church DB, Brodbelt DC, Pegram C. Commonly diagnosed disorders in domestic cats in the UK and their associations with sex and age. J Feline Med Surg. 2023;25(7).","url":"https://doi.org/10.1177/1098612X231155016","retrieved":"2026-09-07"},"method":{"type":"verbatim-quote","from":["data/health-oneill2023-disorders.json"],"how":"Table 2, prevalence of the 30 most common disorders at grouped-level diagnostic precision, random sample of 18,249 cats under UK primary veterinary care during 2019 (VetCompass).","n":1093},"status":"verified","license":"CC-BY-4.0","caveats":["95% CI 5.65-6.34%. General cat population, not breed-specific (study n=18249)."]},{"id":"disorder-prevalence-oneill2023-traumatic-injury","value":5.8,"unit":"percent of cats with the disorder recorded","subject":"Traumatic injury: prevalence in UK primary-care cats, general population (O'Neill et al. 2023)","asof":"2026-09-07","source":{"publisher":"Journal of Feline Medicine and Surgery (SAGE)","title":"O'Neill DG, Baral L, Church DB, Brodbelt DC, Pegram C. Commonly diagnosed disorders in domestic cats in the UK and their associations with sex and age. J Feline Med Surg. 2023;25(7).","url":"https://doi.org/10.1177/1098612X231155016","retrieved":"2026-09-07"},"method":{"type":"verbatim-quote","from":["data/health-oneill2023-disorders.json"],"how":"Table 2, prevalence of the 30 most common disorders at grouped-level diagnostic precision, random sample of 18,249 cats under UK primary veterinary care during 2019 (VetCompass).","n":1062},"status":"verified","license":"CC-BY-4.0","caveats":["95% CI 5.48-6.17%. General cat population, not breed-specific (study n=18249)."]},{"id":"disorder-prevalence-oneill2023-claw-nail-disorder","value":5.8,"unit":"percent of cats with the disorder recorded","subject":"Claw/nail disorder: prevalence in UK primary-care cats, general population (O'Neill et al. 2023)","asof":"2026-09-07","source":{"publisher":"Journal of Feline Medicine and Surgery (SAGE)","title":"O'Neill DG, Baral L, Church DB, Brodbelt DC, Pegram C. Commonly diagnosed disorders in domestic cats in the UK and their associations with sex and age. J Feline Med Surg. 2023;25(7).","url":"https://doi.org/10.1177/1098612X231155016","retrieved":"2026-09-07"},"method":{"type":"verbatim-quote","from":["data/health-oneill2023-disorders.json"],"how":"Table 2, prevalence of the 30 most common disorders at grouped-level diagnostic precision, random sample of 18,249 cats under UK primary veterinary care during 2019 (VetCompass).","n":1052},"status":"verified","license":"CC-BY-4.0","caveats":["95% CI 5.43-6.11%. General cat population, not breed-specific (study n=18249)."]},{"id":"disorder-prevalence-oneill2023-thin-underweight","value":5.6,"unit":"percent of cats with the disorder recorded","subject":"Thin/underweight: prevalence in UK primary-care cats, general population (O'Neill et al. 2023)","asof":"2026-09-07","source":{"publisher":"Journal of Feline Medicine and Surgery (SAGE)","title":"O'Neill DG, Baral L, Church DB, Brodbelt DC, Pegram C. Commonly diagnosed disorders in domestic cats in the UK and their associations with sex and age. J Feline Med Surg. 2023;25(7).","url":"https://doi.org/10.1177/1098612X231155016","retrieved":"2026-09-07"},"method":{"type":"verbatim-quote","from":["data/health-oneill2023-disorders.json"],"how":"Table 2, prevalence of the 30 most common disorders at grouped-level diagnostic precision, random sample of 18,249 cats under UK primary veterinary care during 2019 (VetCompass).","n":1017},"status":"verified","license":"CC-BY-4.0","caveats":["95% CI 5.24-5.92%. General cat population, not breed-specific (study n=18249)."]},{"id":"disorder-prevalence-oneill2023-ophthalmological-disorder","value":4.8,"unit":"percent of cats with the disorder recorded","subject":"Ophthalmological disorder: prevalence in UK primary-care cats, general population (O'Neill et al. 2023)","asof":"2026-09-07","source":{"publisher":"Journal of Feline Medicine and Surgery (SAGE)","title":"O'Neill DG, Baral L, Church DB, Brodbelt DC, Pegram C. Commonly diagnosed disorders in domestic cats in the UK and their associations with sex and age. J Feline Med Surg. 2023;25(7).","url":"https://doi.org/10.1177/1098612X231155016","retrieved":"2026-09-07"},"method":{"type":"verbatim-quote","from":["data/health-oneill2023-disorders.json"],"how":"Table 2, prevalence of the 30 most common disorders at grouped-level diagnostic precision, random sample of 18,249 cats under UK primary veterinary care during 2019 (VetCompass).","n":879},"status":"verified","license":"CC-BY-4.0","caveats":["95% CI 4.51-5.14%. General cat population, not breed-specific (study n=18249)."]},{"id":"disorder-prevalence-oneill2023-musculoskeletal-disorder","value":4.1,"unit":"percent of cats with the disorder recorded","subject":"Musculoskeletal disorder: prevalence in UK primary-care cats, general population (O'Neill et al. 2023)","asof":"2026-09-07","source":{"publisher":"Journal of Feline Medicine and Surgery (SAGE)","title":"O'Neill DG, Baral L, Church DB, Brodbelt DC, Pegram C. Commonly diagnosed disorders in domestic cats in the UK and their associations with sex and age. J Feline Med Surg. 2023;25(7).","url":"https://doi.org/10.1177/1098612X231155016","retrieved":"2026-09-07"},"method":{"type":"verbatim-quote","from":["data/health-oneill2023-disorders.json"],"how":"Table 2, prevalence of the 30 most common disorders at grouped-level diagnostic precision, random sample of 18,249 cats under UK primary veterinary care during 2019 (VetCompass).","n":755},"status":"verified","license":"CC-BY-4.0","caveats":["95% CI 3.85-4.44%. General cat population, not breed-specific (study n=18249)."]},{"id":"disorder-prevalence-oneill2023-urinary-system-disorder","value":3.3,"unit":"percent of cats with the disorder recorded","subject":"Urinary system disorder: prevalence in UK primary-care cats, general population (O'Neill et al. 2023)","asof":"2026-09-07","source":{"publisher":"Journal of Feline Medicine and Surgery (SAGE)","title":"O'Neill DG, Baral L, Church DB, Brodbelt DC, Pegram C. Commonly diagnosed disorders in domestic cats in the UK and their associations with sex and age. J Feline Med Surg. 2023;25(7).","url":"https://doi.org/10.1177/1098612X231155016","retrieved":"2026-09-07"},"method":{"type":"verbatim-quote","from":["data/health-oneill2023-disorders.json"],"how":"Table 2, prevalence of the 30 most common disorders at grouped-level diagnostic precision, random sample of 18,249 cats under UK primary veterinary care during 2019 (VetCompass).","n":606},"status":"verified","license":"CC-BY-4.0","caveats":["95% CI 3.07-3.59%. General cat population, not breed-specific (study n=18249)."]},{"id":"disorder-prevalence-oneill2023-abscess","value":3.2,"unit":"percent of cats with the disorder recorded","subject":"Abscess: prevalence in UK primary-care cats, general population (O'Neill et al. 2023)","asof":"2026-09-07","source":{"publisher":"Journal of Feline Medicine and Surgery (SAGE)","title":"O'Neill DG, Baral L, Church DB, Brodbelt DC, Pegram C. Commonly diagnosed disorders in domestic cats in the UK and their associations with sex and age. J Feline Med Surg. 2023;25(7).","url":"https://doi.org/10.1177/1098612X231155016","retrieved":"2026-09-07"},"method":{"type":"verbatim-quote","from":["data/health-oneill2023-disorders.json"],"how":"Table 2, prevalence of the 30 most common disorders at grouped-level diagnostic precision, random sample of 18,249 cats under UK primary veterinary care during 2019 (VetCompass).","n":586},"status":"verified","license":"CC-BY-4.0","caveats":["95% CI 2.96-3.48%. General cat population, not breed-specific (study n=18249)."]},{"id":"disorder-prevalence-oneill2023-kidney-disease","value":2.5,"unit":"percent of cats with the disorder recorded","subject":"Kidney disease: prevalence in UK primary-care cats, general population (O'Neill et al. 2023)","asof":"2026-09-07","source":{"publisher":"Journal of Feline Medicine and Surgery (SAGE)","title":"O'Neill DG, Baral L, Church DB, Brodbelt DC, Pegram C. Commonly diagnosed disorders in domestic cats in the UK and their associations with sex and age. J Feline Med Surg. 2023;25(7).","url":"https://doi.org/10.1177/1098612X231155016","retrieved":"2026-09-07"},"method":{"type":"verbatim-quote","from":["data/health-oneill2023-disorders.json"],"how":"Table 2, prevalence of the 30 most common disorders at grouped-level diagnostic precision, random sample of 18,249 cats under UK primary veterinary care during 2019 (VetCompass).","n":462},"status":"verified","license":"CC-BY-4.0","caveats":["95% CI 2.31-2.77%. General cat population, not breed-specific (study n=18249)."]},{"id":"disorder-prevalence-oneill2023-endocrine-system-disorder","value":2.5,"unit":"percent of cats with the disorder recorded","subject":"Endocrine system disorder: prevalence in UK primary-care cats, general population (O'Neill et al. 2023)","asof":"2026-09-07","source":{"publisher":"Journal of Feline Medicine and Surgery (SAGE)","title":"O'Neill DG, Baral L, Church DB, Brodbelt DC, Pegram C. Commonly diagnosed disorders in domestic cats in the UK and their associations with sex and age. J Feline Med Surg. 2023;25(7).","url":"https://doi.org/10.1177/1098612X231155016","retrieved":"2026-09-07"},"method":{"type":"verbatim-quote","from":["data/health-oneill2023-disorders.json"],"how":"Table 2, prevalence of the 30 most common disorders at grouped-level diagnostic precision, random sample of 18,249 cats under UK primary veterinary care during 2019 (VetCompass).","n":452},"status":"verified","license":"CC-BY-4.0","caveats":["95% CI 2.26-2.71%. General cat population, not breed-specific (study n=18249)."]},{"id":"disorder-prevalence-oneill2023-appetite-disorder","value":2.5,"unit":"percent of cats with the disorder recorded","subject":"Appetite disorder: prevalence in UK primary-care cats, general population (O'Neill et al. 2023)","asof":"2026-09-07","source":{"publisher":"Journal of Feline Medicine and Surgery (SAGE)","title":"O'Neill DG, Baral L, Church DB, Brodbelt DC, Pegram C. Commonly diagnosed disorders in domestic cats in the UK and their associations with sex and age. J Feline Med Surg. 2023;25(7).","url":"https://doi.org/10.1177/1098612X231155016","retrieved":"2026-09-07"},"method":{"type":"verbatim-quote","from":["data/health-oneill2023-disorders.json"],"how":"Table 2, prevalence of the 30 most common disorders at grouped-level diagnostic precision, random sample of 18,249 cats under UK primary veterinary care during 2019 (VetCompass).","n":449},"status":"verified","license":"CC-BY-4.0","caveats":["95% CI 2.24-2.7%. General cat population, not breed-specific (study n=18249)."]},{"id":"disorder-prevalence-oneill2023-behavioural-disorder","value":2.3,"unit":"percent of cats with the disorder recorded","subject":"Behavioural disorder: prevalence in UK primary-care cats, general population (O'Neill et al. 2023)","asof":"2026-09-07","source":{"publisher":"Journal of Feline Medicine and Surgery (SAGE)","title":"O'Neill DG, Baral L, Church DB, Brodbelt DC, Pegram C. Commonly diagnosed disorders in domestic cats in the UK and their associations with sex and age. J Feline Med Surg. 2023;25(7).","url":"https://doi.org/10.1177/1098612X231155016","retrieved":"2026-09-07"},"method":{"type":"verbatim-quote","from":["data/health-oneill2023-disorders.json"],"how":"Table 2, prevalence of the 30 most common disorders at grouped-level diagnostic precision, random sample of 18,249 cats under UK primary veterinary care during 2019 (VetCompass).","n":413},"status":"verified","license":"CC-BY-4.0","caveats":["95% CI 2.05-2.49%. General cat population, not breed-specific (study n=18249)."]},{"id":"disorder-prevalence-oneill2023-mass-lump","value":2.3,"unit":"percent of cats with the disorder recorded","subject":"Mass/lump: prevalence in UK primary-care cats, general population (O'Neill et al. 2023)","asof":"2026-09-07","source":{"publisher":"Journal of Feline Medicine and Surgery (SAGE)","title":"O'Neill DG, Baral L, Church DB, Brodbelt DC, Pegram C. Commonly diagnosed disorders in domestic cats in the UK and their associations with sex and age. J Feline Med Surg. 2023;25(7).","url":"https://doi.org/10.1177/1098612X231155016","retrieved":"2026-09-07"},"method":{"type":"verbatim-quote","from":["data/health-oneill2023-disorders.json"],"how":"Table 2, prevalence of the 30 most common disorders at grouped-level diagnostic precision, random sample of 18,249 cats under UK primary veterinary care during 2019 (VetCompass).","n":413},"status":"verified","license":"CC-BY-4.0","caveats":["95% CI 2.05-2.49%. General cat population, not breed-specific (study n=18249)."]},{"id":"disorder-prevalence-oneill2023-upper-respiratory-tract-disorder","value":2.2,"unit":"percent of cats with the disorder recorded","subject":"Upper respiratory tract disorder: prevalence in UK primary-care cats, general population (O'Neill et al. 2023)","asof":"2026-09-07","source":{"publisher":"Journal of Feline Medicine and Surgery (SAGE)","title":"O'Neill DG, Baral L, Church DB, Brodbelt DC, Pegram C. Commonly diagnosed disorders in domestic cats in the UK and their associations with sex and age. J Feline Med Surg. 2023;25(7).","url":"https://doi.org/10.1177/1098612X231155016","retrieved":"2026-09-07"},"method":{"type":"verbatim-quote","from":["data/health-oneill2023-disorders.json"],"how":"Table 2, prevalence of the 30 most common disorders at grouped-level diagnostic precision, random sample of 18,249 cats under UK primary veterinary care during 2019 (VetCompass).","n":406},"status":"verified","license":"CC-BY-4.0","caveats":["95% CI 2.02-2.45%. General cat population, not breed-specific (study n=18249)."]},{"id":"disorder-prevalence-oneill2023-ear-disorder","value":2.0,"unit":"percent of cats with the disorder recorded","subject":"Ear disorder: prevalence in UK primary-care cats, general population (O'Neill et al. 2023)","asof":"2026-09-07","source":{"publisher":"Journal of Feline Medicine and Surgery (SAGE)","title":"O'Neill DG, Baral L, Church DB, Brodbelt DC, Pegram C. Commonly diagnosed disorders in domestic cats in the UK and their associations with sex and age. J Feline Med Surg. 2023;25(7).","url":"https://doi.org/10.1177/1098612X231155016","retrieved":"2026-09-07"},"method":{"type":"verbatim-quote","from":["data/health-oneill2023-disorders.json"],"how":"Table 2, prevalence of the 30 most common disorders at grouped-level diagnostic precision, random sample of 18,249 cats under UK primary veterinary care during 2019 (VetCompass).","n":372},"status":"verified","license":"CC-BY-4.0","caveats":["95% CI 1.84-2.25%. General cat population, not breed-specific (study n=18249)."]},{"id":"disorder-prevalence-oneill2023-neoplasia","value":1.8,"unit":"percent of cats with the disorder recorded","subject":"Neoplasia: prevalence in UK primary-care cats, general population (O'Neill et al. 2023)","asof":"2026-09-07","source":{"publisher":"Journal of Feline Medicine and Surgery (SAGE)","title":"O'Neill DG, Baral L, Church DB, Brodbelt DC, Pegram C. Commonly diagnosed disorders in domestic cats in the UK and their associations with sex and age. J Feline Med Surg. 2023;25(7).","url":"https://doi.org/10.1177/1098612X231155016","retrieved":"2026-09-07"},"method":{"type":"verbatim-quote","from":["data/health-oneill2023-disorders.json"],"how":"Table 2, prevalence of the 30 most common disorders at grouped-level diagnostic precision, random sample of 18,249 cats under UK primary veterinary care during 2019 (VetCompass).","n":336},"status":"verified","license":"CC-BY-4.0","caveats":["95% CI 1.65-2.05%. General cat population, not breed-specific (study n=18249)."]},{"id":"disorder-prevalence-oneill2023-disorder-not-diagnosed","value":1.6,"unit":"percent of cats with the disorder recorded","subject":"Disorder not diagnosed: prevalence in UK primary-care cats, general population (O'Neill et al. 2023)","asof":"2026-09-07","source":{"publisher":"Journal of Feline Medicine and Surgery (SAGE)","title":"O'Neill DG, Baral L, Church DB, Brodbelt DC, Pegram C. Commonly diagnosed disorders in domestic cats in the UK and their associations with sex and age. J Feline Med Surg. 2023;25(7).","url":"https://doi.org/10.1177/1098612X231155016","retrieved":"2026-09-07"},"method":{"type":"verbatim-quote","from":["data/health-oneill2023-disorders.json"],"how":"Table 2, prevalence of the 30 most common disorders at grouped-level diagnostic precision, random sample of 18,249 cats under UK primary veterinary care during 2019 (VetCompass).","n":286},"status":"verified","license":"CC-BY-4.0","caveats":["95% CI 1.39-1.76%. General cat population, not breed-specific (study n=18249)."]},{"id":"disorder-prevalence-oneill2023-complication-associated-with-clinical-care","value":1.5,"unit":"percent of cats with the disorder recorded","subject":"Complication associated with clinical care: prevalence in UK primary-care cats, general population (O'Neill et al. 2023)","asof":"2026-09-07","source":{"publisher":"Journal of Feline Medicine and Surgery (SAGE)","title":"O'Neill DG, Baral L, Church DB, Brodbelt DC, Pegram C. Commonly diagnosed disorders in domestic cats in the UK and their associations with sex and age. J Feline Med Surg. 2023;25(7).","url":"https://doi.org/10.1177/1098612X231155016","retrieved":"2026-09-07"},"method":{"type":"verbatim-quote","from":["data/health-oneill2023-disorders.json"],"how":"Table 2, prevalence of the 30 most common disorders at grouped-level diagnostic precision, random sample of 18,249 cats under UK primary veterinary care during 2019 (VetCompass).","n":267},"status":"verified","license":"CC-BY-4.0","caveats":["95% CI 1.29-1.65%. General cat population, not breed-specific (study n=18249)."]},{"id":"disorder-prevalence-oneill2023-lethargy","value":1.4,"unit":"percent of cats with the disorder recorded","subject":"Lethargy: prevalence in UK primary-care cats, general population (O'Neill et al. 2023)","asof":"2026-09-07","source":{"publisher":"Journal of Feline Medicine and Surgery (SAGE)","title":"O'Neill DG, Baral L, Church DB, Brodbelt DC, Pegram C. Commonly diagnosed disorders in domestic cats in the UK and their associations with sex and age. J Feline Med Surg. 2023;25(7).","url":"https://doi.org/10.1177/1098612X231155016","retrieved":"2026-09-07"},"method":{"type":"verbatim-quote","from":["data/health-oneill2023-disorders.json"],"how":"Table 2, prevalence of the 30 most common disorders at grouped-level diagnostic precision, random sample of 18,249 cats under UK primary veterinary care during 2019 (VetCompass).","n":251},"status":"verified","license":"CC-BY-4.0","caveats":["95% CI 1.21-1.56%. General cat population, not breed-specific (study n=18249)."]},{"id":"disorder-prevalence-oneill2023-lower-respiratory-tract-disorder","value":1.3,"unit":"percent of cats with the disorder recorded","subject":"Lower respiratory tract disorder: prevalence in UK primary-care cats, general population (O'Neill et al. 2023)","asof":"2026-09-07","source":{"publisher":"Journal of Feline Medicine and Surgery (SAGE)","title":"O'Neill DG, Baral L, Church DB, Brodbelt DC, Pegram C. Commonly diagnosed disorders in domestic cats in the UK and their associations with sex and age. J Feline Med Surg. 2023;25(7).","url":"https://doi.org/10.1177/1098612X231155016","retrieved":"2026-09-07"},"method":{"type":"verbatim-quote","from":["data/health-oneill2023-disorders.json"],"how":"Table 2, prevalence of the 30 most common disorders at grouped-level diagnostic precision, random sample of 18,249 cats under UK primary veterinary care during 2019 (VetCompass).","n":242},"status":"verified","license":"CC-BY-4.0","caveats":["95% CI 1.17-1.5%. General cat population, not breed-specific (study n=18249)."]},{"id":"disorder-prevalence-oneill2023-oral-cavity-disorder","value":1.2,"unit":"percent of cats with the disorder recorded","subject":"Oral cavity disorder: prevalence in UK primary-care cats, general population (O'Neill et al. 2023)","asof":"2026-09-07","source":{"publisher":"Journal of Feline Medicine and Surgery (SAGE)","title":"O'Neill DG, Baral L, Church DB, Brodbelt DC, Pegram C. Commonly diagnosed disorders in domestic cats in the UK and their associations with sex and age. J Feline Med Surg. 2023;25(7).","url":"https://doi.org/10.1177/1098612X231155016","retrieved":"2026-09-07"},"method":{"type":"verbatim-quote","from":["data/health-oneill2023-disorders.json"],"how":"Table 2, prevalence of the 30 most common disorders at grouped-level diagnostic precision, random sample of 18,249 cats under UK primary veterinary care during 2019 (VetCompass).","n":229},"status":"verified","license":"CC-BY-4.0","caveats":["95% CI 1.1-1.43%. General cat population, not breed-specific (study n=18249)."]},{"id":"disorder-prevalence-oneill2023-viral-infectious-disorder","value":1.1,"unit":"percent of cats with the disorder recorded","subject":"Viral infectious disorder: prevalence in UK primary-care cats, general population (O'Neill et al. 2023)","asof":"2026-09-07","source":{"publisher":"Journal of Feline Medicine and Surgery (SAGE)","title":"O'Neill DG, Baral L, Church DB, Brodbelt DC, Pegram C. Commonly diagnosed disorders in domestic cats in the UK and their associations with sex and age. J Feline Med Surg. 2023;25(7).","url":"https://doi.org/10.1177/1098612X231155016","retrieved":"2026-09-07"},"method":{"type":"verbatim-quote","from":["data/health-oneill2023-disorders.json"],"how":"Table 2, prevalence of the 30 most common disorders at grouped-level diagnostic precision, random sample of 18,249 cats under UK primary veterinary care during 2019 (VetCompass).","n":207},"status":"verified","license":"CC-BY-4.0","caveats":["95% CI 0.99-1.3%. General cat population, not breed-specific (study n=18249)."]},{"id":"disorder-prevalence-oneill2023-foreign-body","value":1.0,"unit":"percent of cats with the disorder recorded","subject":"Foreign body: prevalence in UK primary-care cats, general population (O'Neill et al. 2023)","asof":"2026-09-07","source":{"publisher":"Journal of Feline Medicine and Surgery (SAGE)","title":"O'Neill DG, Baral L, Church DB, Brodbelt DC, Pegram C. Commonly diagnosed disorders in domestic cats in the UK and their associations with sex and age. J Feline Med Surg. 2023;25(7).","url":"https://doi.org/10.1177/1098612X231155016","retrieved":"2026-09-07"},"method":{"type":"verbatim-quote","from":["data/health-oneill2023-disorders.json"],"how":"Table 2, prevalence of the 30 most common disorders at grouped-level diagnostic precision, random sample of 18,249 cats under UK primary veterinary care during 2019 (VetCompass).","n":176},"status":"verified","license":"CC-BY-4.0","caveats":["95% CI 0.83-1.12%. General cat population, not breed-specific (study n=18249)."]},{"id":"disorder-prevalence-oneill2023-brain-disorder","value":1.0,"unit":"percent of cats with the disorder recorded","subject":"Brain disorder: prevalence in UK primary-care cats, general population (O'Neill et al. 2023)","asof":"2026-09-07","source":{"publisher":"Journal of Feline Medicine and Surgery (SAGE)","title":"O'Neill DG, Baral L, Church DB, Brodbelt DC, Pegram C. Commonly diagnosed disorders in domestic cats in the UK and their associations with sex and age. J Feline Med Surg. 2023;25(7).","url":"https://doi.org/10.1177/1098612X231155016","retrieved":"2026-09-07"},"method":{"type":"verbatim-quote","from":["data/health-oneill2023-disorders.json"],"how":"Table 2, prevalence of the 30 most common disorders at grouped-level diagnostic precision, random sample of 18,249 cats under UK primary veterinary care during 2019 (VetCompass).","n":175},"status":"verified","license":"CC-BY-4.0","caveats":["95% CI 0.82-1.11%. General cat population, not breed-specific (study n=18249)."]},{"id":"disorder-prevalence-oneill2023-adverse-reaction-to-drug","value":0.9,"unit":"percent of cats with the disorder recorded","subject":"Adverse reaction to drug: prevalence in UK primary-care cats, general population (O'Neill et al. 2023)","asof":"2026-09-07","source":{"publisher":"Journal of Feline Medicine and Surgery (SAGE)","title":"O'Neill DG, Baral L, Church DB, Brodbelt DC, Pegram C. Commonly diagnosed disorders in domestic cats in the UK and their associations with sex and age. J Feline Med Surg. 2023;25(7).","url":"https://doi.org/10.1177/1098612X231155016","retrieved":"2026-09-07"},"method":{"type":"verbatim-quote","from":["data/health-oneill2023-disorders.json"],"how":"Table 2, prevalence of the 30 most common disorders at grouped-level diagnostic precision, random sample of 18,249 cats under UK primary veterinary care during 2019 (VetCompass).","n":164},"status":"verified","license":"CC-BY-4.0","caveats":["95% CI 0.77-1.05%. General cat population, not breed-specific (study n=18249)."]},{"id":"headline-most-common-feline-disorder","value":21.2,"unit":"percent of cats with the disorder recorded","subject":"Most common recorded disorder in UK primary-care cats: Dental disorder (O'Neill et al. 2023)","asof":"2026-09-07","source":{"publisher":"Journal of Feline Medicine and Surgery (SAGE)","title":"O'Neill DG, Baral L, Church DB, Brodbelt DC, Pegram C. Commonly diagnosed disorders in domestic cats in the UK and their associations with sex and age. J Feline Med Surg. 2023;25(7).","url":"https://doi.org/10.1177/1098612X231155016","retrieved":"2026-09-07"},"method":{"type":"computed","from":["data/health-oneill2023-disorders.json"],"how":"Highest-prevalence row of Table 2 (30 most common grouped-level disorders).","n":3870},"status":"verified","license":"CC-BY-4.0","caveats":["95% CI 20.62-21.81%."]},{"id":"disorder-prevalence-ragdoll-vetcompass-dental","value":14.52,"unit":"percent of Ragdolls with the disorder recorded","subject":"Ragdoll: Dental prevalence (VetCompass, Belshaw Z, O'Neill DG, Brodbelt DC, Church DB, Pegram C)","asof":"2026-09-07","source":{"publisher":"Canine Medicine and Genetics (BMC/Springer)","title":"Belshaw Z, O'Neill DG, Brodbelt DC, Church DB, Pegram C. Demography, common disorders, cause-specific mortality and life expectancy of Ragdoll cats under primary veterinary care during 2019 in the UK. Canine Med Genet. 2025;12(19).","url":"https://doi.org/10.1186/s40575-025-00148-9","retrieved":"2026-09-07"},"method":{"type":"verbatim-quote","from":["data/health-ragdoll2025-vetcompass.json"],"how":"Median adult bodyweight sentence and Table 3 (grouped-level disorder prevalence), random sample of 2,025 Ragdolls under UK primary veterinary care during 2019, out of a 1,254,484-cat VetCompass cohort in which Ragdolls were 1.70% of all cats (VetCompass).","n":294},"status":"verified","license":"CC-BY-4.0","caveats":["95% CI 12.98-16.05%. Breed sample n=2025 out of a 1,254,484 cat VetCompass cohort."]},{"id":"disorder-prevalence-ragdoll-vetcompass-enteropathy","value":13.48,"unit":"percent of Ragdolls with the disorder recorded","subject":"Ragdoll: Enteropathy prevalence (VetCompass, Belshaw Z, O'Neill DG, Brodbelt DC, Church DB, Pegram C)","asof":"2026-09-07","source":{"publisher":"Canine Medicine and Genetics (BMC/Springer)","title":"Belshaw Z, O'Neill DG, Brodbelt DC, Church DB, Pegram C. Demography, common disorders, cause-specific mortality and life expectancy of Ragdoll cats under primary veterinary care during 2019 in the UK. Canine Med Genet. 2025;12(19).","url":"https://doi.org/10.1186/s40575-025-00148-9","retrieved":"2026-09-07"},"method":{"type":"verbatim-quote","from":["data/health-ragdoll2025-vetcompass.json"],"how":"Median adult bodyweight sentence and Table 3 (grouped-level disorder prevalence), random sample of 2,025 Ragdolls under UK primary veterinary care during 2019, out of a 1,254,484-cat VetCompass cohort in which Ragdolls were 1.70% of all cats (VetCompass).","n":273},"status":"verified","license":"CC-BY-4.0","caveats":["95% CI 11.99-14.97%. Breed sample n=2025 out of a 1,254,484 cat VetCompass cohort."]},{"id":"disorder-prevalence-ragdoll-vetcompass-skin","value":7.75,"unit":"percent of Ragdolls with the disorder recorded","subject":"Ragdoll: Skin prevalence (VetCompass, Belshaw Z, O'Neill DG, Brodbelt DC, Church DB, Pegram C)","asof":"2026-09-07","source":{"publisher":"Canine Medicine and Genetics (BMC/Springer)","title":"Belshaw Z, O'Neill DG, Brodbelt DC, Church DB, Pegram C. 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Breed sample n=2025 out of a 1,254,484 cat VetCompass cohort."]},{"id":"disorder-prevalence-ragdoll-vetcompass-obesity","value":6.91,"unit":"percent of Ragdolls with the disorder recorded","subject":"Ragdoll: Obesity prevalence (VetCompass, Belshaw Z, O'Neill DG, Brodbelt DC, Church DB, Pegram C)","asof":"2026-09-07","source":{"publisher":"Canine Medicine and Genetics (BMC/Springer)","title":"Belshaw Z, O'Neill DG, Brodbelt DC, Church DB, Pegram C. Demography, common disorders, cause-specific mortality and life expectancy of Ragdoll cats under primary veterinary care during 2019 in the UK. Canine Med Genet. 2025;12(19).","url":"https://doi.org/10.1186/s40575-025-00148-9","retrieved":"2026-09-07"},"method":{"type":"verbatim-quote","from":["data/health-ragdoll2025-vetcompass.json"],"how":"Median adult bodyweight sentence and Table 3 (grouped-level disorder prevalence), random sample of 2,025 Ragdolls under UK primary veterinary care during 2019, out of a 1,254,484-cat VetCompass cohort in which Ragdolls were 1.70% of all cats (VetCompass).","n":140},"status":"verified","license":"CC-BY-4.0","caveats":["95% CI 5.81-8.02%. Breed sample n=2025 out of a 1,254,484 cat VetCompass cohort."]},{"id":"disorder-prevalence-ragdoll-vetcompass-claw-nail","value":6.17,"unit":"percent of Ragdolls with the disorder recorded","subject":"Ragdoll: Claw/nail prevalence (VetCompass, Belshaw Z, O'Neill DG, Brodbelt DC, Church DB, Pegram C)","asof":"2026-09-07","source":{"publisher":"Canine Medicine and Genetics (BMC/Springer)","title":"Belshaw Z, O'Neill DG, Brodbelt DC, Church DB, Pegram C. 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Breed sample n=2025 out of a 1,254,484 cat VetCompass cohort."]},{"id":"disorder-prevalence-ragdoll-vetcompass-parasite-infestation","value":5.88,"unit":"percent of Ragdolls with the disorder recorded","subject":"Ragdoll: Parasite infestation prevalence (VetCompass, Belshaw Z, O'Neill DG, Brodbelt DC, Church DB, Pegram C)","asof":"2026-09-07","source":{"publisher":"Canine Medicine and Genetics (BMC/Springer)","title":"Belshaw Z, O'Neill DG, Brodbelt DC, Church DB, Pegram C. Demography, common disorders, cause-specific mortality and life expectancy of Ragdoll cats under primary veterinary care during 2019 in the UK. 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Breed sample n=2025 out of a 1,254,484 cat VetCompass cohort."]},{"id":"disorder-prevalence-ragdoll-vetcompass-ophthalmological","value":5.78,"unit":"percent of Ragdolls with the disorder recorded","subject":"Ragdoll: Ophthalmological prevalence (VetCompass, Belshaw Z, O'Neill DG, Brodbelt DC, Church DB, Pegram C)","asof":"2026-09-07","source":{"publisher":"Canine Medicine and Genetics (BMC/Springer)","title":"Belshaw Z, O'Neill DG, Brodbelt DC, Church DB, Pegram C. Demography, common disorders, cause-specific mortality and life expectancy of Ragdoll cats under primary veterinary care during 2019 in the UK. 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Breed sample n=2025 out of a 1,254,484 cat VetCompass cohort."]},{"id":"disorder-prevalence-ragdoll-vetcompass-respiratory-tract","value":4.25,"unit":"percent of Ragdolls with the disorder recorded","subject":"Ragdoll: Respiratory tract prevalence (VetCompass, Belshaw Z, O'Neill DG, Brodbelt DC, Church DB, Pegram C)","asof":"2026-09-07","source":{"publisher":"Canine Medicine and Genetics (BMC/Springer)","title":"Belshaw Z, O'Neill DG, Brodbelt DC, Church DB, Pegram C. Demography, common disorders, cause-specific mortality and life expectancy of Ragdoll cats under primary veterinary care during 2019 in the UK. 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Demography, common disorders, cause-specific mortality and life expectancy of Ragdoll cats under primary veterinary care during 2019 in the UK. Canine Med Genet. 2025;12(19).","url":"https://doi.org/10.1186/s40575-025-00148-9","retrieved":"2026-09-07"},"method":{"type":"verbatim-quote","from":["data/health-ragdoll2025-vetcompass.json"],"how":"Median adult bodyweight sentence and Table 3 (grouped-level disorder prevalence), random sample of 2,025 Ragdolls under UK primary veterinary care during 2019, out of a 1,254,484-cat VetCompass cohort in which Ragdolls were 1.70% of all cats (VetCompass).","n":79},"status":"verified","license":"CC-BY-4.0","caveats":["95% CI 3.06-4.74%. Breed sample n=2025 out of a 1,254,484 cat VetCompass cohort."]},{"id":"disorder-prevalence-ragdoll-vetcompass-thin","value":3.01,"unit":"percent of Ragdolls with the disorder recorded","subject":"Ragdoll: Thin prevalence (VetCompass, Belshaw Z, O'Neill DG, Brodbelt DC, Church DB, Pegram C)","asof":"2026-09-07","source":{"publisher":"Canine Medicine and Genetics (BMC/Springer)","title":"Belshaw Z, O'Neill DG, Brodbelt DC, Church DB, Pegram C. Demography, common disorders, cause-specific mortality and life expectancy of Ragdoll cats under primary veterinary care during 2019 in the UK. Canine Med Genet. 2025;12(19).","url":"https://doi.org/10.1186/s40575-025-00148-9","retrieved":"2026-09-07"},"method":{"type":"verbatim-quote","from":["data/health-ragdoll2025-vetcompass.json"],"how":"Median adult bodyweight sentence and Table 3 (grouped-level disorder prevalence), random sample of 2,025 Ragdolls under UK primary veterinary care during 2019, out of a 1,254,484-cat VetCompass cohort in which Ragdolls were 1.70% of all cats (VetCompass).","n":61},"status":"verified","license":"CC-BY-4.0","caveats":["95% CI 2.27-3.76%. Breed sample n=2025 out of a 1,254,484 cat VetCompass cohort."]},{"id":"disorder-prevalence-ragdoll-vetcompass-urinary-system","value":2.62,"unit":"percent of Ragdolls with the disorder recorded","subject":"Ragdoll: Urinary system prevalence (VetCompass, Belshaw Z, O'Neill DG, Brodbelt DC, Church DB, Pegram C)","asof":"2026-09-07","source":{"publisher":"Canine Medicine and Genetics (BMC/Springer)","title":"Belshaw Z, O'Neill DG, Brodbelt DC, Church DB, Pegram C. Demography, common disorders, cause-specific mortality and life expectancy of Ragdoll cats under primary veterinary care during 2019 in the UK. Canine Med Genet. 2025;12(19).","url":"https://doi.org/10.1186/s40575-025-00148-9","retrieved":"2026-09-07"},"method":{"type":"verbatim-quote","from":["data/health-ragdoll2025-vetcompass.json"],"how":"Median adult bodyweight sentence and Table 3 (grouped-level disorder prevalence), random sample of 2,025 Ragdolls under UK primary veterinary care during 2019, out of a 1,254,484-cat VetCompass cohort in which Ragdolls were 1.70% of all cats (VetCompass).","n":53},"status":"verified","license":"CC-BY-4.0","caveats":["95% CI 1.92-3.31%. Breed sample n=2025 out of a 1,254,484 cat VetCompass cohort."]},{"id":"disorder-prevalence-ragdoll-vetcompass-appetite","value":2.42,"unit":"percent of Ragdolls with the disorder recorded","subject":"Ragdoll: Appetite prevalence (VetCompass, Belshaw Z, O'Neill DG, Brodbelt DC, Church DB, Pegram C)","asof":"2026-09-07","source":{"publisher":"Canine Medicine and Genetics (BMC/Springer)","title":"Belshaw Z, O'Neill DG, Brodbelt DC, Church DB, Pegram C. Demography, common disorders, cause-specific mortality and life expectancy of Ragdoll cats under primary veterinary care during 2019 in the UK. Canine Med Genet. 2025;12(19).","url":"https://doi.org/10.1186/s40575-025-00148-9","retrieved":"2026-09-07"},"method":{"type":"verbatim-quote","from":["data/health-ragdoll2025-vetcompass.json"],"how":"Median adult bodyweight sentence and Table 3 (grouped-level disorder prevalence), random sample of 2,025 Ragdolls under UK primary veterinary care during 2019, out of a 1,254,484-cat VetCompass cohort in which Ragdolls were 1.70% of all cats (VetCompass).","n":49},"status":"verified","license":"CC-BY-4.0","caveats":["95% CI 1.75-3.09%. Breed sample n=2025 out of a 1,254,484 cat VetCompass cohort."]},{"id":"disorder-prevalence-ragdoll-vetcompass-traumatic-injury","value":2.27,"unit":"percent of Ragdolls with the disorder recorded","subject":"Ragdoll: Traumatic injury prevalence (VetCompass, Belshaw Z, O'Neill DG, Brodbelt DC, Church DB, Pegram C)","asof":"2026-09-07","source":{"publisher":"Canine Medicine and Genetics (BMC/Springer)","title":"Belshaw Z, O'Neill DG, Brodbelt DC, Church DB, Pegram C. Demography, common disorders, cause-specific mortality and life expectancy of Ragdoll cats under primary veterinary care during 2019 in the UK. Canine Med Genet. 2025;12(19).","url":"https://doi.org/10.1186/s40575-025-00148-9","retrieved":"2026-09-07"},"method":{"type":"verbatim-quote","from":["data/health-ragdoll2025-vetcompass.json"],"how":"Median adult bodyweight sentence and Table 3 (grouped-level disorder prevalence), random sample of 2,025 Ragdolls under UK primary veterinary care during 2019, out of a 1,254,484-cat VetCompass cohort in which Ragdolls were 1.70% of all cats (VetCompass).","n":46},"status":"verified","license":"CC-BY-4.0","caveats":["95% CI 1.62-2.92%. Breed sample n=2025 out of a 1,254,484 cat VetCompass cohort."]},{"id":"disorder-prevalence-ragdoll-vetcompass-heart","value":2.02,"unit":"percent of Ragdolls with the disorder recorded","subject":"Ragdoll: Heart prevalence (VetCompass, Belshaw Z, O'Neill DG, Brodbelt DC, Church DB, Pegram C)","asof":"2026-09-07","source":{"publisher":"Canine Medicine and Genetics (BMC/Springer)","title":"Belshaw Z, O'Neill DG, Brodbelt DC, Church DB, Pegram C. Demography, common disorders, cause-specific mortality and life expectancy of Ragdoll cats under primary veterinary care during 2019 in the UK. Canine Med Genet. 2025;12(19).","url":"https://doi.org/10.1186/s40575-025-00148-9","retrieved":"2026-09-07"},"method":{"type":"verbatim-quote","from":["data/health-ragdoll2025-vetcompass.json"],"how":"Median adult bodyweight sentence and Table 3 (grouped-level disorder prevalence), random sample of 2,025 Ragdolls under UK primary veterinary care during 2019, out of a 1,254,484-cat VetCompass cohort in which Ragdolls were 1.70% of all cats (VetCompass).","n":41},"status":"verified","license":"CC-BY-4.0","caveats":["95% CI 1.41-2.64%. Breed sample n=2025 out of a 1,254,484 cat VetCompass cohort."]},{"id":"disorder-prevalence-ragdoll-vetcompass-ear","value":1.98,"unit":"percent of Ragdolls with the disorder recorded","subject":"Ragdoll: Ear prevalence (VetCompass, Belshaw Z, O'Neill DG, Brodbelt DC, Church DB, Pegram C)","asof":"2026-09-07","source":{"publisher":"Canine Medicine and Genetics (BMC/Springer)","title":"Belshaw Z, O'Neill DG, Brodbelt DC, Church DB, Pegram C. Demography, common disorders, cause-specific mortality and life expectancy of Ragdoll cats under primary veterinary care during 2019 in the UK. Canine Med Genet. 2025;12(19).","url":"https://doi.org/10.1186/s40575-025-00148-9","retrieved":"2026-09-07"},"method":{"type":"verbatim-quote","from":["data/health-ragdoll2025-vetcompass.json"],"how":"Median adult bodyweight sentence and Table 3 (grouped-level disorder prevalence), random sample of 2,025 Ragdolls under UK primary veterinary care during 2019, out of a 1,254,484-cat VetCompass cohort in which Ragdolls were 1.70% of all cats (VetCompass).","n":40},"status":"verified","license":"CC-BY-4.0","caveats":["95% CI 1.37-2.58%. Breed sample n=2025 out of a 1,254,484 cat VetCompass cohort."]},{"id":"disorder-prevalence-ragdoll-vetcompass-complication-associated-with-clinical-care","value":1.93,"unit":"percent of Ragdolls with the disorder recorded","subject":"Ragdoll: Complication associated with clinical care prevalence (VetCompass, Belshaw Z, O'Neill DG, Brodbelt DC, Church DB, Pegram C)","asof":"2026-09-07","source":{"publisher":"Canine Medicine and Genetics (BMC/Springer)","title":"Belshaw Z, O'Neill DG, Brodbelt DC, Church DB, Pegram C. Demography, common disorders, cause-specific mortality and life expectancy of Ragdoll cats under primary veterinary care during 2019 in the UK. Canine Med Genet. 2025;12(19).","url":"https://doi.org/10.1186/s40575-025-00148-9","retrieved":"2026-09-07"},"method":{"type":"verbatim-quote","from":["data/health-ragdoll2025-vetcompass.json"],"how":"Median adult bodyweight sentence and Table 3 (grouped-level disorder prevalence), random sample of 2,025 Ragdolls under UK primary veterinary care during 2019, out of a 1,254,484-cat VetCompass cohort in which Ragdolls were 1.70% of all cats (VetCompass).","n":39},"status":"verified","license":"CC-BY-4.0","caveats":["95% CI 1.33-2.52%. Breed sample n=2025 out of a 1,254,484 cat VetCompass cohort."]},{"id":"disorder-prevalence-ragdoll-vetcompass-kidney","value":1.93,"unit":"percent of Ragdolls with the disorder recorded","subject":"Ragdoll: Kidney prevalence (VetCompass, Belshaw Z, O'Neill DG, Brodbelt DC, Church DB, Pegram C)","asof":"2026-09-07","source":{"publisher":"Canine Medicine and Genetics (BMC/Springer)","title":"Belshaw Z, O'Neill DG, Brodbelt DC, Church DB, Pegram C. Demography, common disorders, cause-specific mortality and life expectancy of Ragdoll cats under primary veterinary care during 2019 in the UK. Canine Med Genet. 2025;12(19).","url":"https://doi.org/10.1186/s40575-025-00148-9","retrieved":"2026-09-07"},"method":{"type":"verbatim-quote","from":["data/health-ragdoll2025-vetcompass.json"],"how":"Median adult bodyweight sentence and Table 3 (grouped-level disorder prevalence), random sample of 2,025 Ragdolls under UK primary veterinary care during 2019, out of a 1,254,484-cat VetCompass cohort in which Ragdolls were 1.70% of all cats (VetCompass).","n":39},"status":"verified","license":"CC-BY-4.0","caveats":["95% CI 1.33-2.52%. Breed sample n=2025 out of a 1,254,484 cat VetCompass cohort."]},{"id":"disorder-prevalence-ragdoll-vetcompass-mass-lump","value":1.88,"unit":"percent of Ragdolls with the disorder recorded","subject":"Ragdoll: Mass/lump prevalence (VetCompass, Belshaw Z, O'Neill DG, Brodbelt DC, Church DB, Pegram C)","asof":"2026-09-07","source":{"publisher":"Canine Medicine and Genetics (BMC/Springer)","title":"Belshaw Z, O'Neill DG, Brodbelt DC, Church DB, Pegram C. Demography, common disorders, cause-specific mortality and life expectancy of Ragdoll cats under primary veterinary care during 2019 in the UK. Canine Med Genet. 2025;12(19).","url":"https://doi.org/10.1186/s40575-025-00148-9","retrieved":"2026-09-07"},"method":{"type":"verbatim-quote","from":["data/health-ragdoll2025-vetcompass.json"],"how":"Median adult bodyweight sentence and Table 3 (grouped-level disorder prevalence), random sample of 2,025 Ragdolls under UK primary veterinary care during 2019, out of a 1,254,484-cat VetCompass cohort in which Ragdolls were 1.70% of all cats (VetCompass).","n":38},"status":"verified","license":"CC-BY-4.0","caveats":["95% CI 1.29-2.47%. Breed sample n=2025 out of a 1,254,484 cat VetCompass cohort."]},{"id":"disorder-prevalence-ragdoll-vetcompass-musculoskeletal","value":1.83,"unit":"percent of Ragdolls with the disorder recorded","subject":"Ragdoll: Musculoskeletal prevalence (VetCompass, Belshaw Z, O'Neill DG, Brodbelt DC, Church DB, Pegram C)","asof":"2026-09-07","source":{"publisher":"Canine Medicine and Genetics (BMC/Springer)","title":"Belshaw Z, O'Neill DG, Brodbelt DC, Church DB, Pegram C. Demography, common disorders, cause-specific mortality and life expectancy of Ragdoll cats under primary veterinary care during 2019 in the UK. Canine Med Genet. 2025;12(19).","url":"https://doi.org/10.1186/s40575-025-00148-9","retrieved":"2026-09-07"},"method":{"type":"verbatim-quote","from":["data/health-ragdoll2025-vetcompass.json"],"how":"Median adult bodyweight sentence and Table 3 (grouped-level disorder prevalence), random sample of 2,025 Ragdolls under UK primary veterinary care during 2019, out of a 1,254,484-cat VetCompass cohort in which Ragdolls were 1.70% of all cats (VetCompass).","n":37},"status":"verified","license":"CC-BY-4.0","caveats":["95% CI 1.24-2.41%. Breed sample n=2025 out of a 1,254,484 cat VetCompass cohort."]},{"id":"disorder-prevalence-ragdoll-vetcompass-lethargy","value":1.63,"unit":"percent of Ragdolls with the disorder recorded","subject":"Ragdoll: Lethargy prevalence (VetCompass, Belshaw Z, O'Neill DG, Brodbelt DC, Church DB, Pegram C)","asof":"2026-09-07","source":{"publisher":"Canine Medicine and Genetics (BMC/Springer)","title":"Belshaw Z, O'Neill DG, Brodbelt DC, Church DB, Pegram C. Demography, common disorders, cause-specific mortality and life expectancy of Ragdoll cats under primary veterinary care during 2019 in the UK. Canine Med Genet. 2025;12(19).","url":"https://doi.org/10.1186/s40575-025-00148-9","retrieved":"2026-09-07"},"method":{"type":"verbatim-quote","from":["data/health-ragdoll2025-vetcompass.json"],"how":"Median adult bodyweight sentence and Table 3 (grouped-level disorder prevalence), random sample of 2,025 Ragdolls under UK primary veterinary care during 2019, out of a 1,254,484-cat VetCompass cohort in which Ragdolls were 1.70% of all cats (VetCompass).","n":33},"status":"verified","license":"CC-BY-4.0","caveats":["95% CI 1.08-2.18%. Breed sample n=2025 out of a 1,254,484 cat VetCompass cohort."]},{"id":"disorder-prevalence-persian-vetcompass-haircoat-disorder","value":12.7,"unit":"percent of Persians with the disorder recorded","subject":"Persian: Haircoat disorder prevalence (VetCompass, Fuentes Pachon C, O'Neill DG, Faroon A, Church DB, Brodbelt DC)","asof":"2026-09-07","source":{"publisher":"Scientific Reports (Springer Nature)","title":"Fuentes Pachon C, O'Neill DG, Faroon A, Church DB, Brodbelt DC. Persian cats under first opinion veterinary care in the UK: demography, mortality and disorders. Sci Rep. 2019;9:12952.","url":"https://doi.org/10.1038/s41598-019-49317-4","retrieved":"2026-09-07"},"method":{"type":"verbatim-quote","from":["data/health-persian2019-vetcompass.json"],"how":"Mean adult bodyweight sentence, Table 2 (25 most common fine-level disorders), and the Introduction's cited ADPKD prevalence figure -- random sample of 3,235 Persians out of 285,547 UK primary-care cats, 2013 (VetCompass).","n":411},"status":"verified","license":"CC-BY-4.0","caveats":["95% CI 11.6-13.9%. Breed sample n=3235 out of a 285,547 cat VetCompass cohort."]},{"id":"disorder-prevalence-persian-vetcompass-ocular-discharge","value":5.8,"unit":"percent of Persians with the disorder recorded","subject":"Persian: Ocular discharge prevalence (VetCompass, Fuentes Pachon C, O'Neill DG, Faroon A, Church DB, Brodbelt DC)","asof":"2026-09-07","source":{"publisher":"Scientific Reports (Springer Nature)","title":"Fuentes Pachon C, O'Neill DG, Faroon A, Church DB, Brodbelt DC. Persian cats under first opinion veterinary care in the UK: demography, mortality and disorders. Sci Rep. 2019;9:12952.","url":"https://doi.org/10.1038/s41598-019-49317-4","retrieved":"2026-09-07"},"method":{"type":"verbatim-quote","from":["data/health-persian2019-vetcompass.json"],"how":"Mean adult bodyweight sentence, Table 2 (25 most common fine-level disorders), and the Introduction's cited ADPKD prevalence figure -- random sample of 3,235 Persians out of 285,547 UK primary-care cats, 2013 (VetCompass).","n":188},"status":"verified","license":"CC-BY-4.0","caveats":["95% CI 5.0-6.7%. Breed sample n=3235 out of a 285,547 cat VetCompass cohort."]},{"id":"disorder-prevalence-persian-vetcompass-heart-murmur","value":5.8,"unit":"percent of Persians with the disorder recorded","subject":"Persian: Heart murmur prevalence (VetCompass, Fuentes Pachon C, O'Neill DG, Faroon A, Church DB, Brodbelt DC)","asof":"2026-09-07","source":{"publisher":"Scientific Reports (Springer Nature)","title":"Fuentes Pachon C, O'Neill DG, Faroon A, Church DB, Brodbelt DC. Persian cats under first opinion veterinary care in the UK: demography, mortality and disorders. Sci Rep. 2019;9:12952.","url":"https://doi.org/10.1038/s41598-019-49317-4","retrieved":"2026-09-07"},"method":{"type":"verbatim-quote","from":["data/health-persian2019-vetcompass.json"],"how":"Mean adult bodyweight sentence, Table 2 (25 most common fine-level disorders), and the Introduction's cited ADPKD prevalence figure -- random sample of 3,235 Persians out of 285,547 UK primary-care cats, 2013 (VetCompass).","n":188},"status":"verified","license":"CC-BY-4.0","caveats":["95% CI 5.0-6.7%. Breed sample n=3235 out of a 285,547 cat VetCompass cohort."]},{"id":"disorder-prevalence-persian-vetcompass-fleas-infestation","value":5.1,"unit":"percent of Persians with the disorder recorded","subject":"Persian: Fleas infestation prevalence (VetCompass, Fuentes Pachon C, O'Neill DG, Faroon A, Church DB, Brodbelt DC)","asof":"2026-09-07","source":{"publisher":"Scientific Reports (Springer Nature)","title":"Fuentes Pachon C, O'Neill DG, Faroon A, Church DB, Brodbelt DC. Persian cats under first opinion veterinary care in the UK: demography, mortality and disorders. Sci Rep. 2019;9:12952.","url":"https://doi.org/10.1038/s41598-019-49317-4","retrieved":"2026-09-07"},"method":{"type":"verbatim-quote","from":["data/health-persian2019-vetcompass.json"],"how":"Mean adult bodyweight sentence, Table 2 (25 most common fine-level disorders), and the Introduction's cited ADPKD prevalence figure -- random sample of 3,235 Persians out of 285,547 UK primary-care cats, 2013 (VetCompass).","n":165},"status":"verified","license":"CC-BY-4.0","caveats":["95% CI 4.4-5.9%. Breed sample n=3235 out of a 285,547 cat VetCompass cohort."]},{"id":"disorder-prevalence-persian-vetcompass-weight-loss","value":4.9,"unit":"percent of Persians with the disorder recorded","subject":"Persian: Weight loss prevalence (VetCompass, Fuentes Pachon C, O'Neill DG, Faroon A, Church DB, Brodbelt DC)","asof":"2026-09-07","source":{"publisher":"Scientific Reports (Springer Nature)","title":"Fuentes Pachon C, O'Neill DG, Faroon A, Church DB, Brodbelt DC. Persian cats under first opinion veterinary care in the UK: demography, mortality and disorders. Sci Rep. 2019;9:12952.","url":"https://doi.org/10.1038/s41598-019-49317-4","retrieved":"2026-09-07"},"method":{"type":"verbatim-quote","from":["data/health-persian2019-vetcompass.json"],"how":"Mean adult bodyweight sentence, Table 2 (25 most common fine-level disorders), and the Introduction's cited ADPKD prevalence figure -- random sample of 3,235 Persians out of 285,547 UK primary-care cats, 2013 (VetCompass).","n":160},"status":"verified","license":"CC-BY-4.0","caveats":["95% CI 4.2-5.8%. Breed sample n=3235 out of a 285,547 cat VetCompass cohort."]},{"id":"disorder-prevalence-persian-vetcompass-conjunctivitis","value":4.5,"unit":"percent of Persians with the disorder recorded","subject":"Persian: Conjunctivitis prevalence (VetCompass, Fuentes Pachon C, O'Neill DG, Faroon A, Church DB, Brodbelt DC)","asof":"2026-09-07","source":{"publisher":"Scientific Reports (Springer Nature)","title":"Fuentes Pachon C, O'Neill DG, Faroon A, Church DB, Brodbelt DC. Persian cats under first opinion veterinary care in the UK: demography, mortality and disorders. Sci Rep. 2019;9:12952.","url":"https://doi.org/10.1038/s41598-019-49317-4","retrieved":"2026-09-07"},"method":{"type":"verbatim-quote","from":["data/health-persian2019-vetcompass.json"],"how":"Mean adult bodyweight sentence, Table 2 (25 most common fine-level disorders), and the Introduction's cited ADPKD prevalence figure -- random sample of 3,235 Persians out of 285,547 UK primary-care cats, 2013 (VetCompass).","n":146},"status":"verified","license":"CC-BY-4.0","caveats":["95% CI 3.8-5.3%. Breed sample n=3235 out of a 285,547 cat VetCompass cohort."]},{"id":"disorder-prevalence-persian-vetcompass-diarrhoea","value":4.4,"unit":"percent of Persians with the disorder recorded","subject":"Persian: Diarrhoea prevalence (VetCompass, Fuentes Pachon C, O'Neill DG, Faroon A, Church DB, Brodbelt DC)","asof":"2026-09-07","source":{"publisher":"Scientific Reports (Springer Nature)","title":"Fuentes Pachon C, O'Neill DG, Faroon A, Church DB, Brodbelt DC. Persian cats under first opinion veterinary care in the UK: demography, mortality and disorders. Sci Rep. 2019;9:12952.","url":"https://doi.org/10.1038/s41598-019-49317-4","retrieved":"2026-09-07"},"method":{"type":"verbatim-quote","from":["data/health-persian2019-vetcompass.json"],"how":"Mean adult bodyweight sentence, Table 2 (25 most common fine-level disorders), and the Introduction's cited ADPKD prevalence figure -- random sample of 3,235 Persians out of 285,547 UK primary-care cats, 2013 (VetCompass).","n":142},"status":"verified","license":"CC-BY-4.0","caveats":["95% CI 3.7-5.2%. Breed sample n=3235 out of a 285,547 cat VetCompass cohort."]},{"id":"disorder-prevalence-persian-vetcompass-vomiting","value":4.3,"unit":"percent of Persians with the disorder recorded","subject":"Persian: Vomiting prevalence (VetCompass, Fuentes Pachon C, O'Neill DG, Faroon A, Church DB, Brodbelt DC)","asof":"2026-09-07","source":{"publisher":"Scientific Reports (Springer Nature)","title":"Fuentes Pachon C, O'Neill DG, Faroon A, Church DB, Brodbelt DC. Persian cats under first opinion veterinary care in the UK: demography, mortality and disorders. Sci Rep. 2019;9:12952.","url":"https://doi.org/10.1038/s41598-019-49317-4","retrieved":"2026-09-07"},"method":{"type":"verbatim-quote","from":["data/health-persian2019-vetcompass.json"],"how":"Mean adult bodyweight sentence, Table 2 (25 most common fine-level disorders), and the Introduction's cited ADPKD prevalence figure -- random sample of 3,235 Persians out of 285,547 UK primary-care cats, 2013 (VetCompass).","n":140},"status":"verified","license":"CC-BY-4.0","caveats":["95% CI 3.7-5.1%. Breed sample n=3235 out of a 285,547 cat VetCompass cohort."]},{"id":"disorder-prevalence-persian-vetcompass-chronic-renal-failure","value":3.6,"unit":"percent of Persians with the disorder recorded","subject":"Persian: Chronic renal failure prevalence (VetCompass, Fuentes Pachon C, O'Neill DG, Faroon A, Church DB, Brodbelt DC)","asof":"2026-09-07","source":{"publisher":"Scientific Reports (Springer Nature)","title":"Fuentes Pachon C, O'Neill DG, Faroon A, Church DB, Brodbelt DC. Persian cats under first opinion veterinary care in the UK: demography, mortality and disorders. Sci Rep. 2019;9:12952.","url":"https://doi.org/10.1038/s41598-019-49317-4","retrieved":"2026-09-07"},"method":{"type":"verbatim-quote","from":["data/health-persian2019-vetcompass.json"],"how":"Mean adult bodyweight sentence, Table 2 (25 most common fine-level disorders), and the Introduction's cited ADPKD prevalence figure -- random sample of 3,235 Persians out of 285,547 UK primary-care cats, 2013 (VetCompass).","n":116},"status":"verified","license":"CC-BY-4.0","caveats":["95% CI 3.0-4.3%. Breed sample n=3235 out of a 285,547 cat VetCompass cohort."]},{"id":"disorder-prevalence-persian-vetcompass-underweight","value":3.2,"unit":"percent of Persians with the disorder recorded","subject":"Persian: Underweight prevalence (VetCompass, Fuentes Pachon C, O'Neill DG, Faroon A, Church DB, Brodbelt DC)","asof":"2026-09-07","source":{"publisher":"Scientific Reports (Springer Nature)","title":"Fuentes Pachon C, O'Neill DG, Faroon A, Church DB, Brodbelt DC. Persian cats under first opinion veterinary care in the UK: demography, mortality and disorders. Sci Rep. 2019;9:12952.","url":"https://doi.org/10.1038/s41598-019-49317-4","retrieved":"2026-09-07"},"method":{"type":"verbatim-quote","from":["data/health-persian2019-vetcompass.json"],"how":"Mean adult bodyweight sentence, Table 2 (25 most common fine-level disorders), and the Introduction's cited ADPKD prevalence figure -- random sample of 3,235 Persians out of 285,547 UK primary-care cats, 2013 (VetCompass).","n":102},"status":"verified","license":"CC-BY-4.0","caveats":["95% CI 2.6-3.8%. Breed sample n=3235 out of a 285,547 cat VetCompass cohort."]},{"id":"disorder-prevalence-persian-vetcompass-otitis-externa","value":2.5,"unit":"percent of Persians with the disorder recorded","subject":"Persian: Otitis externa prevalence (VetCompass, Fuentes Pachon C, O'Neill DG, Faroon A, Church DB, Brodbelt DC)","asof":"2026-09-07","source":{"publisher":"Scientific Reports (Springer Nature)","title":"Fuentes Pachon C, O'Neill DG, Faroon A, Church DB, Brodbelt DC. Persian cats under first opinion veterinary care in the UK: demography, mortality and disorders. Sci Rep. 2019;9:12952.","url":"https://doi.org/10.1038/s41598-019-49317-4","retrieved":"2026-09-07"},"method":{"type":"verbatim-quote","from":["data/health-persian2019-vetcompass.json"],"how":"Mean adult bodyweight sentence, Table 2 (25 most common fine-level disorders), and the Introduction's cited ADPKD prevalence figure -- random sample of 3,235 Persians out of 285,547 UK primary-care cats, 2013 (VetCompass).","n":81},"status":"verified","license":"CC-BY-4.0","caveats":["95% CI 2.0-3.1%. Breed sample n=3235 out of a 285,547 cat VetCompass cohort."]},{"id":"disorder-prevalence-persian-vetcompass-sneezing","value":2.5,"unit":"percent of Persians with the disorder recorded","subject":"Persian: Sneezing prevalence (VetCompass, Fuentes Pachon C, O'Neill DG, Faroon A, Church DB, Brodbelt DC)","asof":"2026-09-07","source":{"publisher":"Scientific Reports (Springer Nature)","title":"Fuentes Pachon C, O'Neill DG, Faroon A, Church DB, Brodbelt DC. Persian cats under first opinion veterinary care in the UK: demography, mortality and disorders. Sci Rep. 2019;9:12952.","url":"https://doi.org/10.1038/s41598-019-49317-4","retrieved":"2026-09-07"},"method":{"type":"verbatim-quote","from":["data/health-persian2019-vetcompass.json"],"how":"Mean adult bodyweight sentence, Table 2 (25 most common fine-level disorders), and the Introduction's cited ADPKD prevalence figure -- random sample of 3,235 Persians out of 285,547 UK primary-care cats, 2013 (VetCompass).","n":80},"status":"verified","license":"CC-BY-4.0","caveats":["95% CI 2.0-3.1%. Breed sample n=3235 out of a 285,547 cat VetCompass cohort."]},{"id":"disorder-prevalence-persian-vetcompass-tear-duct-abnormality","value":2.3,"unit":"percent of Persians with the disorder recorded","subject":"Persian: Tear duct abnormality prevalence (VetCompass, Fuentes Pachon C, O'Neill DG, Faroon A, Church DB, Brodbelt DC)","asof":"2026-09-07","source":{"publisher":"Scientific Reports (Springer Nature)","title":"Fuentes Pachon C, O'Neill DG, Faroon A, Church DB, Brodbelt DC. Persian cats under first opinion veterinary care in the UK: demography, mortality and disorders. Sci Rep. 2019;9:12952.","url":"https://doi.org/10.1038/s41598-019-49317-4","retrieved":"2026-09-07"},"method":{"type":"verbatim-quote","from":["data/health-persian2019-vetcompass.json"],"how":"Mean adult bodyweight sentence, Table 2 (25 most common fine-level disorders), and the Introduction's cited ADPKD prevalence figure -- random sample of 3,235 Persians out of 285,547 UK primary-care cats, 2013 (VetCompass).","n":76},"status":"verified","license":"CC-BY-4.0","caveats":["95% CI 1.9-2.9%. Breed sample n=3235 out of a 285,547 cat VetCompass cohort."]},{"id":"disorder-prevalence-persian-vetcompass-ulcerative-keratitis","value":2.3,"unit":"percent of Persians with the disorder recorded","subject":"Persian: Ulcerative keratitis prevalence (VetCompass, Fuentes Pachon C, O'Neill DG, Faroon A, Church DB, Brodbelt DC)","asof":"2026-09-07","source":{"publisher":"Scientific Reports (Springer Nature)","title":"Fuentes Pachon C, O'Neill DG, Faroon A, Church DB, Brodbelt DC. Persian cats under first opinion veterinary care in the UK: demography, mortality and disorders. Sci Rep. 2019;9:12952.","url":"https://doi.org/10.1038/s41598-019-49317-4","retrieved":"2026-09-07"},"method":{"type":"verbatim-quote","from":["data/health-persian2019-vetcompass.json"],"how":"Mean adult bodyweight sentence, Table 2 (25 most common fine-level disorders), and the Introduction's cited ADPKD prevalence figure -- random sample of 3,235 Persians out of 285,547 UK primary-care cats, 2013 (VetCompass).","n":76},"status":"verified","license":"CC-BY-4.0","caveats":["95% CI 1.9-2.9%. Breed sample n=3235 out of a 285,547 cat VetCompass cohort."]},{"id":"disorder-prevalence-persian-vetcompass-polyuria-polydipsia","value":2.0,"unit":"percent of Persians with the disorder recorded","subject":"Persian: Polyuria/polydipsia prevalence (VetCompass, Fuentes Pachon C, O'Neill DG, Faroon A, Church DB, Brodbelt DC)","asof":"2026-09-07","source":{"publisher":"Scientific Reports (Springer Nature)","title":"Fuentes Pachon C, O'Neill DG, Faroon A, Church DB, Brodbelt DC. Persian cats under first opinion veterinary care in the UK: demography, mortality and disorders. Sci Rep. 2019;9:12952.","url":"https://doi.org/10.1038/s41598-019-49317-4","retrieved":"2026-09-07"},"method":{"type":"verbatim-quote","from":["data/health-persian2019-vetcompass.json"],"how":"Mean adult bodyweight sentence, Table 2 (25 most common fine-level disorders), and the Introduction's cited ADPKD prevalence figure -- random sample of 3,235 Persians out of 285,547 UK primary-care cats, 2013 (VetCompass).","n":66},"status":"verified","license":"CC-BY-4.0","caveats":["95% CI 1.6-2.6%. Breed sample n=3235 out of a 285,547 cat VetCompass cohort."]},{"id":"disorder-prevalence-persian-vetcompass-corneal-disorder","value":1.9,"unit":"percent of Persians with the disorder recorded","subject":"Persian: Corneal disorder prevalence (VetCompass, Fuentes Pachon C, O'Neill DG, Faroon A, Church DB, Brodbelt DC)","asof":"2026-09-07","source":{"publisher":"Scientific Reports (Springer Nature)","title":"Fuentes Pachon C, O'Neill DG, Faroon A, Church DB, Brodbelt DC. Persian cats under first opinion veterinary care in the UK: demography, mortality and disorders. Sci Rep. 2019;9:12952.","url":"https://doi.org/10.1038/s41598-019-49317-4","retrieved":"2026-09-07"},"method":{"type":"verbatim-quote","from":["data/health-persian2019-vetcompass.json"],"how":"Mean adult bodyweight sentence, Table 2 (25 most common fine-level disorders), and the Introduction's cited ADPKD prevalence figure -- random sample of 3,235 Persians out of 285,547 UK primary-care cats, 2013 (VetCompass).","n":61},"status":"verified","license":"CC-BY-4.0","caveats":["95% CI 1.4-2.4%. Breed sample n=3235 out of a 285,547 cat VetCompass cohort."]},{"id":"disorder-prevalence-persian-vetcompass-cystitis","value":1.8,"unit":"percent of Persians with the disorder recorded","subject":"Persian: Cystitis prevalence (VetCompass, Fuentes Pachon C, O'Neill DG, Faroon A, Church DB, Brodbelt DC)","asof":"2026-09-07","source":{"publisher":"Scientific Reports (Springer Nature)","title":"Fuentes Pachon C, O'Neill DG, Faroon A, Church DB, Brodbelt DC. Persian cats under first opinion veterinary care in the UK: demography, mortality and disorders. Sci Rep. 2019;9:12952.","url":"https://doi.org/10.1038/s41598-019-49317-4","retrieved":"2026-09-07"},"method":{"type":"verbatim-quote","from":["data/health-persian2019-vetcompass.json"],"how":"Mean adult bodyweight sentence, Table 2 (25 most common fine-level disorders), and the Introduction's cited ADPKD prevalence figure -- random sample of 3,235 Persians out of 285,547 UK primary-care cats, 2013 (VetCompass).","n":57},"status":"verified","license":"CC-BY-4.0","caveats":["95% CI 1.3-2.3%. Breed sample n=3235 out of a 285,547 cat VetCompass cohort."]},{"id":"disorder-prevalence-persian-vetcompass-nasal-discharge","value":1.7,"unit":"percent of Persians with the disorder recorded","subject":"Persian: Nasal discharge prevalence (VetCompass, Fuentes Pachon C, O'Neill DG, Faroon A, Church DB, Brodbelt DC)","asof":"2026-09-07","source":{"publisher":"Scientific Reports (Springer Nature)","title":"Fuentes Pachon C, O'Neill DG, Faroon A, Church DB, Brodbelt DC. Persian cats under first opinion veterinary care in the UK: demography, mortality and disorders. Sci Rep. 2019;9:12952.","url":"https://doi.org/10.1038/s41598-019-49317-4","retrieved":"2026-09-07"},"method":{"type":"verbatim-quote","from":["data/health-persian2019-vetcompass.json"],"how":"Mean adult bodyweight sentence, Table 2 (25 most common fine-level disorders), and the Introduction's cited ADPKD prevalence figure -- random sample of 3,235 Persians out of 285,547 UK primary-care cats, 2013 (VetCompass).","n":56},"status":"verified","license":"CC-BY-4.0","caveats":["95% CI 1.3-2.2%. Breed sample n=3235 out of a 285,547 cat VetCompass cohort."]},{"id":"disorder-prevalence-persian-vetcompass-upper-respiratory-tract-disorder","value":1.6,"unit":"percent of Persians with the disorder recorded","subject":"Persian: Upper respiratory tract disorder prevalence (VetCompass, Fuentes Pachon C, O'Neill DG, Faroon A, Church DB, Brodbelt DC)","asof":"2026-09-07","source":{"publisher":"Scientific Reports (Springer Nature)","title":"Fuentes Pachon C, O'Neill DG, Faroon A, Church DB, Brodbelt DC. Persian cats under first opinion veterinary care in the UK: demography, mortality and disorders. Sci Rep. 2019;9:12952.","url":"https://doi.org/10.1038/s41598-019-49317-4","retrieved":"2026-09-07"},"method":{"type":"verbatim-quote","from":["data/health-persian2019-vetcompass.json"],"how":"Mean adult bodyweight sentence, Table 2 (25 most common fine-level disorders), and the Introduction's cited ADPKD prevalence figure -- random sample of 3,235 Persians out of 285,547 UK primary-care cats, 2013 (VetCompass).","n":52},"status":"verified","license":"CC-BY-4.0","caveats":["95% CI 1.2-2.1%. Breed sample n=3235 out of a 285,547 cat VetCompass cohort."]},{"id":"disorder-prevalence-persian-vetcompass-upper-respiratory-tract-infection","value":1.5,"unit":"percent of Persians with the disorder recorded","subject":"Persian: Upper respiratory tract infection prevalence (VetCompass, Fuentes Pachon C, O'Neill DG, Faroon A, Church DB, Brodbelt DC)","asof":"2026-09-07","source":{"publisher":"Scientific Reports (Springer Nature)","title":"Fuentes Pachon C, O'Neill DG, Faroon A, Church DB, Brodbelt DC. Persian cats under first opinion veterinary care in the UK: demography, mortality and disorders. Sci Rep. 2019;9:12952.","url":"https://doi.org/10.1038/s41598-019-49317-4","retrieved":"2026-09-07"},"method":{"type":"verbatim-quote","from":["data/health-persian2019-vetcompass.json"],"how":"Mean adult bodyweight sentence, Table 2 (25 most common fine-level disorders), and the Introduction's cited ADPKD prevalence figure -- random sample of 3,235 Persians out of 285,547 UK primary-care cats, 2013 (VetCompass).","n":50},"status":"verified","license":"CC-BY-4.0","caveats":["95% CI 1.1-2.0%. Breed sample n=3235 out of a 285,547 cat VetCompass cohort."]},{"id":"disorder-prevalence-persian-vetcompass-trichobezoar-hairball","value":1.5,"unit":"percent of Persians with the disorder recorded","subject":"Persian: Trichobezoar (hairball) prevalence (VetCompass, Fuentes Pachon C, O'Neill DG, Faroon A, Church DB, Brodbelt DC)","asof":"2026-09-07","source":{"publisher":"Scientific Reports (Springer Nature)","title":"Fuentes Pachon C, O'Neill DG, Faroon A, Church DB, Brodbelt DC. Persian cats under first opinion veterinary care in the UK: demography, mortality and disorders. Sci Rep. 2019;9:12952.","url":"https://doi.org/10.1038/s41598-019-49317-4","retrieved":"2026-09-07"},"method":{"type":"verbatim-quote","from":["data/health-persian2019-vetcompass.json"],"how":"Mean adult bodyweight sentence, Table 2 (25 most common fine-level disorders), and the Introduction's cited ADPKD prevalence figure -- random sample of 3,235 Persians out of 285,547 UK primary-care cats, 2013 (VetCompass).","n":47},"status":"verified","license":"CC-BY-4.0","caveats":["95% CI 1.1-1.9%. Breed sample n=3235 out of a 285,547 cat VetCompass cohort."]},{"id":"pkd-prevalence-persian-cited-1996-2000","value":49.0,"unit":"percent (autosomal dominant polycystic kidney disease)","subject":"Persian: Autosomal dominant polycystic kidney disease (ADPKD) prevalence, 1996-2000 UK screening cohort (as cited in Fuentes Pachon et al. 2019)","asof":"2026-09-07","source":{"publisher":"Scientific Reports (Springer Nature)","title":"Fuentes Pachon C, O'Neill DG, Faroon A, Church DB, Brodbelt DC. Persian cats under first opinion veterinary care in the UK: demography, mortality and disorders. Sci Rep. 2019;9:12952.","url":"https://doi.org/10.1038/s41598-019-49317-4","retrieved":"2026-09-07"},"method":{"type":"verbatim-quote","from":["data/health-persian2019-vetcompass.json"],"how":"Introduction's cited figure from an earlier (1996-2000) UK screening study of high-risk Persians.","n":132},"status":"preliminary","license":"CC-BY-4.0","caveats":["Cohort: UK, high-risk Persians (screening referrals, not a general population sample). This is a secondhand citation within the fetched paper, not independently re-verified against the original 1996-2000 screening study by this project. See also pkd-prevalence-persian-iran2022 for a directly-fetched primary molecular estimate."]},{"id":"pkd-prevalence-persian-iran2022","value":46.8,"unit":"percent (PKD1 c.10063C>A heterozygous carriers)","subject":"Persian and Persian-related breeds (Iran): Autosomal dominant polycystic kidney disease (ADPKD), PKD1 c.10063C>A carrier prevalence","asof":"2026-09-07","source":{"publisher":"Journal of Feline Medicine and Surgery Open Reports (SAGE)","title":"Molecular detection of polycystic kidney disease in Persian and Persian-related breeds in Iran. J Feline Med Surg Open Rep. 2022;8(1).","url":"https://doi.org/10.1177/20551169211070991","retrieved":"2026-09-07"},"method":{"type":"verbatim-quote","from":["data/health-pkd-persian-iran2022.json"],"how":"Results paragraph: touchdown PCR genotyping of buccal swabs from 47 Persian and Persian-related cats in Iran for the feline PKD1 c.10063C>A mutation.","n":47},"status":"preliminary","license":"CC-BY-4.0","caveats":["22/47 cats positive. Convenience sample of cats presented for testing in Iran, not a random general-population sample; 'Persian-related breeds' pooled with Persian, not broken out."]},{"id":"hcm-prevalence-maine-coon-a31p","value":16.33,"unit":"percent (mutation-carrier prevalence, genotype)","subject":"Maine coon: MYBPC3-A31P carrier prevalence (Sukumolanan & Petchdee 2022)","asof":"2026-09-07","source":{"publisher":"Veterinary World","title":"Sukumolanan P, Petchdee S. Prevalence of cardiac myosin-binding protein C3 mutations in Maine Coon cats with hypertrophic cardiomyopathy. Vet World. 2022;15(2):502-508.","url":"https://doi.org/10.14202/vetworld.2022.502-508","retrieved":"2026-09-07"},"method":{"type":"verbatim-quote","from":["data/health-mainecoon-hcm2022.json"],"how":"Results paragraph: PCR + Sanger-sequencing genotyping of 49 Maine Coon cats for the MYBPC3 A31P and A74T variants.","n":49},"status":"preliminary","license":"CC-BY-4.0","caveats":["Genotype (mutation-carrier) prevalence in a small screened cohort, not a phenotypic HCM diagnosis rate and not necessarily representative of the wider Maine Coon population."]},{"id":"hcm-prevalence-maine-coon-a74t","value":24.45,"unit":"percent (mutation-carrier prevalence, genotype)","subject":"Maine coon: MYBPC3-A74T carrier prevalence (Sukumolanan & Petchdee 2022)","asof":"2026-09-07","source":{"publisher":"Veterinary World","title":"Sukumolanan P, Petchdee S. Prevalence of cardiac myosin-binding protein C3 mutations in Maine Coon cats with hypertrophic cardiomyopathy. Vet World. 2022;15(2):502-508.","url":"https://doi.org/10.14202/vetworld.2022.502-508","retrieved":"2026-09-07"},"method":{"type":"verbatim-quote","from":["data/health-mainecoon-hcm2022.json"],"how":"Results paragraph: PCR + Sanger-sequencing genotyping of 49 Maine Coon cats for the MYBPC3 A31P and A74T variants.","n":49},"status":"preliminary","license":"CC-BY-4.0","caveats":["Genotype (mutation-carrier) prevalence in a small screened cohort, not a phenotypic HCM diagnosis rate and not necessarily representative of the wider Maine Coon population."]},{"id":"hcm-prevalence-maine-coon-mybpc3-a31p-review2025","value":42.0,"unit":"percent (upper end of reported prevalence range, genotype, per a literature review)","subject":"Maine Coon: MYBPC3 A31P mutation prevalence range reported across prior studies (cited in Vet Sci 2025 review), range 22.0-42.0%","asof":"2026-09-07","source":{"publisher":"Veterinary Sciences (MDPI)","title":"Clinical-Diagnostic and Therapeutic Advances in Feline Hypertrophic Cardiomyopathy. Vet Sci. 2025;12(3):289.","url":"https://doi.org/10.3390/vetsci12030289","retrieved":"2026-09-07"},"method":{"type":"verbatim-quote","from":["data/health-hcm-review2025.json"],"how":"Three sentences in the review's own text stating breed-level MYBPC3 mutation prevalence figures."},"status":"preliminary","license":"CC-BY-4.0","caveats":["This project fetched a literature review, not the primary study the review cites for this figure -- see this data file's notes."]},{"id":"hcm-prevalence-maine-coon-mybpc3-any-variant-review2025","value":39.4,"unit":"percent (mutation-carrier prevalence, genotype, per a literature review)","subject":"Maine Coon: MYBPC3 (any variant) gene-mutation carrier prevalence (cited in Vet Sci 2025 review)","asof":"2026-09-07","source":{"publisher":"Veterinary Sciences (MDPI)","title":"Clinical-Diagnostic and Therapeutic Advances in Feline Hypertrophic Cardiomyopathy. Vet Sci. 2025;12(3):289.","url":"https://doi.org/10.3390/vetsci12030289","retrieved":"2026-09-07"},"method":{"type":"verbatim-quote","from":["data/health-hcm-review2025.json"],"how":"Three sentences in the review's own text stating breed-level MYBPC3 mutation prevalence figures."},"status":"preliminary","license":"CC-BY-4.0","caveats":["This project fetched a literature review, not the primary study the review cites for this figure -- see this data file's notes."]},{"id":"hcm-prevalence-ragdoll-mybpc3-any-variant-review2025","value":27.0,"unit":"percent (mutation-carrier prevalence, genotype, per a literature review)","subject":"Ragdoll: MYBPC3 (any variant) gene-mutation carrier prevalence (cited in Vet Sci 2025 review)","asof":"2026-09-07","source":{"publisher":"Veterinary Sciences (MDPI)","title":"Clinical-Diagnostic and Therapeutic Advances in Feline Hypertrophic Cardiomyopathy. Vet Sci. 2025;12(3):289.","url":"https://doi.org/10.3390/vetsci12030289","retrieved":"2026-09-07"},"method":{"type":"verbatim-quote","from":["data/health-hcm-review2025.json"],"how":"Three sentences in the review's own text stating breed-level MYBPC3 mutation prevalence figures."},"status":"preliminary","license":"CC-BY-4.0","caveats":["This project fetched a literature review, not the primary study the review cites for this figure -- see this data file's notes."]},{"id":"hcm-prevalence-ragdoll-mybpc3-r820w-review2025","value":27.0,"unit":"percent (mutation-carrier prevalence, genotype, per a literature review)","subject":"Ragdoll: MYBPC3 R820W mutation prevalence, breed-exclusive variant (cited in Vet Sci 2025 review)","asof":"2026-09-07","source":{"publisher":"Veterinary Sciences (MDPI)","title":"Clinical-Diagnostic and Therapeutic Advances in Feline Hypertrophic Cardiomyopathy. Vet Sci. 2025;12(3):289.","url":"https://doi.org/10.3390/vetsci12030289","retrieved":"2026-09-07"},"method":{"type":"verbatim-quote","from":["data/health-hcm-review2025.json"],"how":"Three sentences in the review's own text stating breed-level MYBPC3 mutation prevalence figures."},"status":"preliminary","license":"CC-BY-4.0","caveats":["This project fetched a literature review, not the primary study the review cites for this figure -- see this data file's notes."]},{"id":"feld1-range-domestic-shorthair","value":35.0,"unit":"ug/ml (salivary Fel d1, upper end of measured range)","subject":"Domestic shorthair cats: salivary Fel d1 ranged 0.4-35.0 ug/ml across individuals over a year (Bastien et al. 2019)","asof":"2026-09-07","source":{"publisher":"Journal of Feline Medicine and Surgery (SAGE)","title":"Bastien BC, Patil A, Satyaraj E. Influence of time and phenotype on salivary Fel d1 in domestic shorthair cats. J Feline Med Surg. 2019;21(10):867-874.","url":"https://doi.org/10.1177/1098612X19850973","retrieved":"2026-09-07"},"method":{"type":"verbatim-quote","from":["data/allergy-feld1-bastien2019.json"],"how":"Results paragraph (measured Fel d1 range) and Introduction (cited background sensitisation range) of a study of 64 domestic shorthair cats, saliva sampled over one year at two North American sites.","n":64},"status":"verified","license":"facts-only","caveats":["Range across individual cats (n=64), not a breed comparison -- all cats in this study were domestic shorthair (non-pedigree). Sex, coat colour and body size did not relate to average Fel d1 production per this study."]},{"id":"cat-allergen-sensitization-rate-cited","value":15.0,"unit":"percent of adults (upper end of a cited background range)","subject":"Adults estimated to be sensitized to cat allergens: 10.0-15.0% (background figure cited in Bastien et al. 2019)","asof":"2026-09-07","source":{"publisher":"Journal of Feline Medicine and Surgery (SAGE)","title":"Bastien BC, Patil A, Satyaraj E. Influence of time and phenotype on salivary Fel d1 in domestic shorthair cats. J Feline Med Surg. 2019;21(10):867-874.","url":"https://doi.org/10.1177/1098612X19850973","retrieved":"2026-09-07"},"method":{"type":"verbatim-quote","from":["data/allergy-feld1-bastien2019.json"],"how":"Introduction's cited background statistic, not this paper's own finding."},"status":"preliminary","license":"facts-only","caveats":["This is a background figure the paper cites, sourced from earlier literature -- not independently re-verified against a primary NHANES/CDC source by this project (none was found fetchable; see docs/sources.md)."]},{"id":"feld1-sex-neuter-effect","value":5.46,"unit":"U/g (fur Fel d1, geometric mean, intact males)","subject":"Intact male cats: fur Fel d1 geometric mean 5.46 U/g vs 1.28 U/g in neutered males (cited in a 2025 review)","asof":"2026-09-07","source":{"publisher":"Clinical and Translational Allergy (Wiley/EAACI)","title":"Innovative Strategies to Reduce Exposure and Expression of the Major Cat Allergen Fel d 1. Clin Transl Allergy. 2025;15(9):e70098.","url":"https://doi.org/10.1002/clt2.70098","retrieved":"2026-09-07"},"method":{"type":"verbatim-quote","from":["data/allergy-feld1-review2025.json"],"how":"One sentence in the review's Hormonal Approaches section stating fur Fel d1 geometric means by neuter status in males, cited to Ramadour et al."},"status":"preliminary","license":"CC-BY-4.0","caveats":["p<0.0001. Sex/neuter status effect, not a breed comparison; this project fetched the review, not the primary study (Ramadour et al.) it cites for this figure."]},{"id":"claimed-hypoallergenic-siberian","value":1,"unit":"claim recorded (1 = a fetched source makes this claim)","subject":"Siberian: marketed as hypoallergenic by hypoallergenicats.com (commercial cattery)","asof":"2026-09-07","source":{"publisher":"hypoallergenicats.com (W&H Siberian Hypoallergenic Cats, a cattery)","title":"Siberian cats and kittens are hypoallergenic (breeder claim)","url":"https://hypoallergenicats.com/","retrieved":"2026-09-07"},"method":{"type":"verbatim-quote","from":["data/allergy-claimed-hypoallergenic.json"],"how":"One sentence quoted from a commercial Siberian cattery's own marketing page, recorded as a claim."},"status":"verified","license":"facts-only","caveats":["A breeder marketing claim, not a peer-reviewed measurement -- recorded as a claim, not endorsed."]},{"id":"headline-claimed-vs-measured-hypoallergenic","value":1,"unit":"breeds (count claimed hypoallergenic by a fetched source, in this corpus)","subject":"1 breed(s) marketed as hypoallergenic in this corpus's fetched sources (Siberian); 0 breeds have an open-access study in this corpus directly measuring a breed-level Fel d1 reduction","asof":"2026-09-07","source":{"publisher":"hypoallergenicats.com (W&H Siberian Hypoallergenic Cats, a cattery)","title":"Siberian cats and kittens are hypoallergenic (breeder claim)","url":"https://hypoallergenicats.com/","retrieved":"2026-09-07"},"method":{"type":"computed","from":["data/allergy-claimed-hypoallergenic.json","data/allergy-feld1-bastien2019.json","data/allergy-feld1-review2025.json"],"how":"Count of claims in data/allergy-claimed-hypoallergenic.json against the absence of a breed-comparison figure in either fetched Fel d1 study."},"status":"preliminary","license":"facts-only","caveats":["This corpus fetched claim pages for only one breed (Siberian) and found no open-access study directly comparing Fel d1 across multiple named breeds -- both counts reflect what this project could fetch, not an exhaustive survey of every breed-hypoallergenic claim or every allergen study that may exist elsewhere."]},{"id":"indoor-only-share-overall","value":41.0,"unit":"percent of surveyed owned cats kept indoor-only","subject":"Share of surveyed owned cats kept indoor-only, all regions (Foreman-Worsley et al. 2021)","asof":"2026-09-07","source":{"publisher":"Animals (MDPI)","title":"Foreman-Worsley R, Finka LR, Ward SJ, Farnworth MJ. Indoors or Outdoors? An International Exploration of Owner Demographics and Decision Making Associated with Lifestyle of Pet Cats. Animals. 2021;11(2):253.","url":"https://doi.org/10.3390/ani11020253","retrieved":"2026-09-07"},"method":{"type":"computed","from":["data/lifestyle-indoor-outdoor2021.json"],"how":"2104 / 5129 respondents.","n":5129},"status":"verified","license":"CC-BY-4.0","caveats":["Self-selected online survey (social media), 76.2% of respondents based in Europe -- not a representative sample."]},{"id":"indoor-only-share-usa-canada","value":80.6,"unit":"percent of surveyed owned cats kept indoor-only","subject":"Share of surveyed owned cats kept indoor-only, USA and Canada respondents (Foreman-Worsley et al. 2021)","asof":"2026-09-07","source":{"publisher":"Animals (MDPI)","title":"Foreman-Worsley R, Finka LR, Ward SJ, Farnworth MJ. Indoors or Outdoors? An International Exploration of Owner Demographics and Decision Making Associated with Lifestyle of Pet Cats. Animals. 2021;11(2):253.","url":"https://doi.org/10.3390/ani11020253","retrieved":"2026-09-07"},"method":{"type":"verbatim-quote","from":["data/lifestyle-indoor-outdoor2021.json"],"how":"Table 1, Region row, USA and Canada column."},"status":"preliminary","license":"CC-BY-4.0","caveats":["USA and Canada respondents were 20.8% of the 5,129 total -- a subgroup of a convenience sample, not a US-representative survey (compare with the AVMA population figures, which are US-representative but do not cover indoor/outdoor lifestyle)."]},{"id":"headline-life-expectancy-remaining-age0-vs-age10","value":11.74,"unit":"years remaining life expectancy at age 0 (all cats)","subject":"Remaining life expectancy at age 0 vs age 10, all cats under primary veterinary care (Teng et al. 2024)","asof":"2026-09-07","source":{"publisher":"Journal of Feline Medicine and Surgery (SAGE)","title":"Teng KT, O'Neill DG, Brodbelt DC, Church DB, Pegram C. Life tables of annual life expectancy and risk factors for mortality in cats in the UK. J Feline Med Surg. 2024;26(5).","url":"https://doi.org/10.1177/1098612X241234211","retrieved":"2026-09-07"},"method":{"type":"verbatim-quote","from":["data/life-tables-teng2024.json#series.all"],"how":"Table 1, age band 0-1: e^x = 11.74 years (95% CI 11.61-11.87). At age 10-11: e^x = 5.46 years remaining (95% CI 5.38-5.54), i.e. a cat that reaches 10 is then expected to live to about 15.5 in total -- a conditional expectation, not a fixed total lifespan."},"status":"verified","license":"CC-BY-4.0","caveats":["Cohort life table from a UK primary-care veterinary population (VetCompass, 2019), not a general-population census -- see data/life-tables-teng2024.json for every age band and the female/male/crossbred/purebred series."]},{"id":"headline-kitten-stillbirth-rate-sparkes2006","value":7.2,"unit":"percent of kittens stillborn","subject":"Mean stillbirth rate across 14 UK pedigree breeds (Sparkes et al. 2006)","asof":"2026-09-20","source":{"publisher":"Journal of Feline Medicine and Surgery (SAGE)","title":"Sparkes AH, Rogers K, Henley WE, Gunn-Moore DA, May JM, Gruffydd-Jones TJ, Bessant C. A questionnaire-based study of gestation, parturition and neonatal mortality in pedigree breeding cats in the UK. J Feline Med Surg. 2006;8(3):145-157.","url":"https://doi.org/10.1016/j.jfms.2005.10.003","retrieved":"2026-09-20"},"method":{"type":"verbatim-quote","from":["data/mortality-sparkes2006.json"],"how":"Table 1, 'Summary of the breed-specific data collected during the study' -- 14 pedigree breeds, 1056 litters from 942 UK households. Stillbirth rate per breed is derived here as 100 - born_alive_percent (the table reports '% of kittens born alive', not stillbirth directly). Study headline (abstract): mean 7.2% of all kittens stillborn, mean kitten mortality birth-to-8-weeks 9.1% (most in week 1), 8.0% of pregnancies resulted in caesarean section.","n":1056},"status":"verified","license":"facts-only","caveats":["UK convenience-sampling breeder questionnaire (1056 litters, 942 households) -- not a random or clinic-verified sample."]},{"id":"headline-kitten-mortality-birth-to-8weeks-sparkes2006","value":9.1,"unit":"percent of kittens dead by 8 weeks","subject":"Mean pre-weaning (birth-to-8-week) kitten mortality across 14 UK pedigree breeds (Sparkes et al. 2006)","asof":"2026-09-20","source":{"publisher":"Journal of Feline Medicine and Surgery (SAGE)","title":"Sparkes AH, Rogers K, Henley WE, Gunn-Moore DA, May JM, Gruffydd-Jones TJ, Bessant C. A questionnaire-based study of gestation, parturition and neonatal mortality in pedigree breeding cats in the UK. J Feline Med Surg. 2006;8(3):145-157.","url":"https://doi.org/10.1016/j.jfms.2005.10.003","retrieved":"2026-09-20"},"method":{"type":"verbatim-quote","from":["data/mortality-sparkes2006.json"],"how":"Table 1, 'Summary of the breed-specific data collected during the study' -- 14 pedigree breeds, 1056 litters from 942 UK households. Stillbirth rate per breed is derived here as 100 - born_alive_percent (the table reports '% of kittens born alive', not stillbirth directly). Study headline (abstract): mean 7.2% of all kittens stillborn, mean kitten mortality birth-to-8-weeks 9.1% (most in week 1), 8.0% of pregnancies resulted in caesarean section.","n":1056},"status":"verified","license":"facts-only","caveats":["The majority of these deaths occur in the first week of life, per the study's own abstract."]},{"id":"mortality-sparkes2006-stillbirth-persian","value":10.8,"unit":"percent stillborn","subject":"Persian: stillbirth rate, UK pedigree litters (Sparkes et al. 2006)","asof":"2026-09-20","source":{"publisher":"Journal of Feline Medicine and Surgery (SAGE)","title":"Sparkes AH, Rogers K, Henley WE, Gunn-Moore DA, May JM, Gruffydd-Jones TJ, Bessant C. A questionnaire-based study of gestation, parturition and neonatal mortality in pedigree breeding cats in the UK. J Feline Med Surg. 2006;8(3):145-157.","url":"https://doi.org/10.1016/j.jfms.2005.10.003","retrieved":"2026-09-20"},"method":{"type":"computed","from":["data/mortality-sparkes2006.json"],"how":"100 - 'mean % of kittens born alive' (89.2%) from Table 1.","n":212},"status":"verified","license":"facts-only","caveats":["Study sample n=212 litters."]},{"id":"mortality-sparkes2006-8week-persian","value":14.5,"unit":"percentage points dead between birth and 8 weeks","subject":"Persian: birth-to-8-week kitten mortality, UK pedigree litters (Sparkes et al. 2006)","asof":"2026-09-20","source":{"publisher":"Journal of Feline Medicine and Surgery (SAGE)","title":"Sparkes AH, Rogers K, Henley WE, Gunn-Moore DA, May JM, Gruffydd-Jones TJ, Bessant C. A questionnaire-based study of gestation, parturition and neonatal mortality in pedigree breeding cats in the UK. J Feline Med Surg. 2006;8(3):145-157.","url":"https://doi.org/10.1016/j.jfms.2005.10.003","retrieved":"2026-09-20"},"method":{"type":"computed","from":["data/mortality-sparkes2006.json"],"how":"Table 1: 'mean % of kittens born alive' (89.2%) minus 'mean % alive at 8 weeks' (74.7%).","n":212},"status":"verified","license":"facts-only","caveats":["Study sample n=212 litters."]},{"id":"mortality-sparkes2006-stillbirth-burmese","value":7.3,"unit":"percent stillborn","subject":"Burmese: stillbirth rate, UK pedigree litters (Sparkes et al. 2006)","asof":"2026-09-20","source":{"publisher":"Journal of Feline Medicine and Surgery (SAGE)","title":"Sparkes AH, Rogers K, Henley WE, Gunn-Moore DA, May JM, Gruffydd-Jones TJ, Bessant C. A questionnaire-based study of gestation, parturition and neonatal mortality in pedigree breeding cats in the UK. J Feline Med Surg. 2006;8(3):145-157.","url":"https://doi.org/10.1016/j.jfms.2005.10.003","retrieved":"2026-09-20"},"method":{"type":"computed","from":["data/mortality-sparkes2006.json"],"how":"100 - 'mean % of kittens born alive' (92.7%) from Table 1.","n":150},"status":"verified","license":"facts-only","caveats":["Study sample n=150 litters."]},{"id":"mortality-sparkes2006-8week-burmese","value":8.5,"unit":"percentage points dead between birth and 8 weeks","subject":"Burmese: birth-to-8-week kitten mortality, UK pedigree litters (Sparkes et al. 2006)","asof":"2026-09-20","source":{"publisher":"Journal of Feline Medicine and Surgery (SAGE)","title":"Sparkes AH, Rogers K, Henley WE, Gunn-Moore DA, May JM, Gruffydd-Jones TJ, Bessant C. A questionnaire-based study of gestation, parturition and neonatal mortality in pedigree breeding cats in the UK. J Feline Med Surg. 2006;8(3):145-157.","url":"https://doi.org/10.1016/j.jfms.2005.10.003","retrieved":"2026-09-20"},"method":{"type":"computed","from":["data/mortality-sparkes2006.json"],"how":"Table 1: 'mean % of kittens born alive' (92.7%) minus 'mean % alive at 8 weeks' (84.2%).","n":150},"status":"verified","license":"facts-only","caveats":["Study sample n=150 litters."]},{"id":"mortality-sparkes2006-stillbirth-siamese","value":8.3,"unit":"percent stillborn","subject":"Siamese: stillbirth rate, UK pedigree litters (Sparkes et al. 2006)","asof":"2026-09-20","source":{"publisher":"Journal of Feline Medicine and Surgery (SAGE)","title":"Sparkes AH, Rogers K, Henley WE, Gunn-Moore DA, May JM, Gruffydd-Jones TJ, Bessant C. A questionnaire-based study of gestation, parturition and neonatal mortality in pedigree breeding cats in the UK. J Feline Med Surg. 2006;8(3):145-157.","url":"https://doi.org/10.1016/j.jfms.2005.10.003","retrieved":"2026-09-20"},"method":{"type":"computed","from":["data/mortality-sparkes2006.json"],"how":"100 - 'mean % of kittens born alive' (91.7%) from Table 1.","n":138},"status":"verified","license":"facts-only","caveats":["Study sample n=138 litters."]},{"id":"mortality-sparkes2006-8week-siamese","value":9.7,"unit":"percentage points dead between birth and 8 weeks","subject":"Siamese: birth-to-8-week kitten mortality, UK pedigree litters (Sparkes et al. 2006)","asof":"2026-09-20","source":{"publisher":"Journal of Feline Medicine and Surgery (SAGE)","title":"Sparkes AH, Rogers K, Henley WE, Gunn-Moore DA, May JM, Gruffydd-Jones TJ, Bessant C. A questionnaire-based study of gestation, parturition and neonatal mortality in pedigree breeding cats in the UK. J Feline Med Surg. 2006;8(3):145-157.","url":"https://doi.org/10.1016/j.jfms.2005.10.003","retrieved":"2026-09-20"},"method":{"type":"computed","from":["data/mortality-sparkes2006.json"],"how":"Table 1: 'mean % of kittens born alive' (91.7%) minus 'mean % alive at 8 weeks' (82.0%).","n":138},"status":"verified","license":"facts-only","caveats":["Study sample n=138 litters."]},{"id":"mortality-sparkes2006-stillbirth-british-shorthair","value":6.2,"unit":"percent stillborn","subject":"British Shorthair: stillbirth rate, UK pedigree litters (Sparkes et al. 2006)","asof":"2026-09-20","source":{"publisher":"Journal of Feline Medicine and Surgery (SAGE)","title":"Sparkes AH, Rogers K, Henley WE, Gunn-Moore DA, May JM, Gruffydd-Jones TJ, Bessant C. A questionnaire-based study of gestation, parturition and neonatal mortality in pedigree breeding cats in the UK. J Feline Med Surg. 2006;8(3):145-157.","url":"https://doi.org/10.1016/j.jfms.2005.10.003","retrieved":"2026-09-20"},"method":{"type":"computed","from":["data/mortality-sparkes2006.json"],"how":"100 - 'mean % of kittens born alive' (93.8%) from Table 1.","n":110},"status":"verified","license":"facts-only","caveats":["Study sample n=110 litters."]},{"id":"mortality-sparkes2006-8week-british-shorthair","value":7.3,"unit":"percentage points dead between birth and 8 weeks","subject":"British Shorthair: birth-to-8-week kitten mortality, UK pedigree litters (Sparkes et al. 2006)","asof":"2026-09-20","source":{"publisher":"Journal of Feline Medicine and Surgery (SAGE)","title":"Sparkes AH, Rogers K, Henley WE, Gunn-Moore DA, May JM, Gruffydd-Jones TJ, Bessant C. A questionnaire-based study of gestation, parturition and neonatal mortality in pedigree breeding cats in the UK. J Feline Med Surg. 2006;8(3):145-157.","url":"https://doi.org/10.1016/j.jfms.2005.10.003","retrieved":"2026-09-20"},"method":{"type":"computed","from":["data/mortality-sparkes2006.json"],"how":"Table 1: 'mean % of kittens born alive' (93.8%) minus 'mean % alive at 8 weeks' (86.5%).","n":110},"status":"verified","license":"facts-only","caveats":["Study sample n=110 litters."]},{"id":"mortality-sparkes2006-stillbirth-oriental-shorthair","value":8.2,"unit":"percent stillborn","subject":"Oriental Shorthair: stillbirth rate, UK pedigree litters (Sparkes et al. 2006)","asof":"2026-09-20","source":{"publisher":"Journal of Feline Medicine and Surgery (SAGE)","title":"Sparkes AH, Rogers K, Henley WE, Gunn-Moore DA, May JM, Gruffydd-Jones TJ, Bessant C. A questionnaire-based study of gestation, parturition and neonatal mortality in pedigree breeding cats in the UK. J Feline Med Surg. 2006;8(3):145-157.","url":"https://doi.org/10.1016/j.jfms.2005.10.003","retrieved":"2026-09-20"},"method":{"type":"computed","from":["data/mortality-sparkes2006.json"],"how":"100 - 'mean % of kittens born alive' (91.8%) from Table 1.","n":92},"status":"verified","license":"facts-only","caveats":["Study sample n=92 litters."]},{"id":"mortality-sparkes2006-8week-oriental-shorthair","value":8.5,"unit":"percentage points dead between birth and 8 weeks","subject":"Oriental Shorthair: birth-to-8-week kitten mortality, UK pedigree litters (Sparkes et al. 2006)","asof":"2026-09-20","source":{"publisher":"Journal of Feline Medicine and Surgery (SAGE)","title":"Sparkes AH, Rogers K, Henley WE, Gunn-Moore DA, May JM, Gruffydd-Jones TJ, Bessant C. A questionnaire-based study of gestation, parturition and neonatal mortality in pedigree breeding cats in the UK. J Feline Med Surg. 2006;8(3):145-157.","url":"https://doi.org/10.1016/j.jfms.2005.10.003","retrieved":"2026-09-20"},"method":{"type":"computed","from":["data/mortality-sparkes2006.json"],"how":"Table 1: 'mean % of kittens born alive' (91.8%) minus 'mean % alive at 8 weeks' (83.3%).","n":92},"status":"verified","license":"facts-only","caveats":["Study sample n=92 litters."]},{"id":"mortality-sparkes2006-stillbirth-birman","value":2.4,"unit":"percent stillborn","subject":"Birman: stillbirth rate, UK pedigree litters (Sparkes et al. 2006)","asof":"2026-09-20","source":{"publisher":"Journal of Feline Medicine and Surgery (SAGE)","title":"Sparkes AH, Rogers K, Henley WE, Gunn-Moore DA, May JM, Gruffydd-Jones TJ, Bessant C. A questionnaire-based study of gestation, parturition and neonatal mortality in pedigree breeding cats in the UK. J Feline Med Surg. 2006;8(3):145-157.","url":"https://doi.org/10.1016/j.jfms.2005.10.003","retrieved":"2026-09-20"},"method":{"type":"computed","from":["data/mortality-sparkes2006.json"],"how":"100 - 'mean % of kittens born alive' (97.6%) from Table 1.","n":88},"status":"verified","license":"facts-only","caveats":["Study sample n=88 litters.","Study breed label 'Birman' does not map 1:1 onto a single roster breed."]},{"id":"mortality-sparkes2006-8week-birman","value":3.5,"unit":"percentage points dead between birth and 8 weeks","subject":"Birman: birth-to-8-week kitten mortality, UK pedigree litters (Sparkes et al. 2006)","asof":"2026-09-20","source":{"publisher":"Journal of Feline Medicine and Surgery (SAGE)","title":"Sparkes AH, Rogers K, Henley WE, Gunn-Moore DA, May JM, Gruffydd-Jones TJ, Bessant C. A questionnaire-based study of gestation, parturition and neonatal mortality in pedigree breeding cats in the UK. J Feline Med Surg. 2006;8(3):145-157.","url":"https://doi.org/10.1016/j.jfms.2005.10.003","retrieved":"2026-09-20"},"method":{"type":"computed","from":["data/mortality-sparkes2006.json"],"how":"Table 1: 'mean % of kittens born alive' (97.6%) minus 'mean % alive at 8 weeks' (94.1%).","n":88},"status":"verified","license":"facts-only","caveats":["Study sample n=88 litters.","Study breed label 'Birman' does not map 1:1 onto a single roster breed."]},{"id":"mortality-sparkes2006-stillbirth-rex","value":8.5,"unit":"percent stillborn","subject":"'Rex': stillbirth rate, UK pedigree litters (Sparkes et al. 2006)","asof":"2026-09-20","source":{"publisher":"Journal of Feline Medicine and Surgery (SAGE)","title":"Sparkes AH, Rogers K, Henley WE, Gunn-Moore DA, May JM, Gruffydd-Jones TJ, Bessant C. A questionnaire-based study of gestation, parturition and neonatal mortality in pedigree breeding cats in the UK. J Feline Med Surg. 2006;8(3):145-157.","url":"https://doi.org/10.1016/j.jfms.2005.10.003","retrieved":"2026-09-20"},"method":{"type":"computed","from":["data/mortality-sparkes2006.json"],"how":"100 - 'mean % of kittens born alive' (91.5%) from Table 1.","n":47},"status":"verified","license":"facts-only","caveats":["Study sample n=47 litters.","Study breed label ''Rex'' does not map 1:1 onto a single roster breed."]},{"id":"mortality-sparkes2006-8week-rex","value":7.4,"unit":"percentage points dead between birth and 8 weeks","subject":"'Rex': birth-to-8-week kitten mortality, UK pedigree litters (Sparkes et al. 2006)","asof":"2026-09-20","source":{"publisher":"Journal of Feline Medicine and Surgery (SAGE)","title":"Sparkes AH, Rogers K, Henley WE, Gunn-Moore DA, May JM, Gruffydd-Jones TJ, Bessant C. A questionnaire-based study of gestation, parturition and neonatal mortality in pedigree breeding cats in the UK. J Feline Med Surg. 2006;8(3):145-157.","url":"https://doi.org/10.1016/j.jfms.2005.10.003","retrieved":"2026-09-20"},"method":{"type":"computed","from":["data/mortality-sparkes2006.json"],"how":"Table 1: 'mean % of kittens born alive' (91.5%) minus 'mean % alive at 8 weeks' (84.1%).","n":47},"status":"verified","license":"facts-only","caveats":["Study sample n=47 litters.","Study breed label ''Rex'' does not map 1:1 onto a single roster breed."]},{"id":"mortality-sparkes2006-stillbirth-asian","value":4.7,"unit":"percent stillborn","subject":"Asian: stillbirth rate, UK pedigree litters (Sparkes et al. 2006)","asof":"2026-09-20","source":{"publisher":"Journal of Feline Medicine and Surgery (SAGE)","title":"Sparkes AH, Rogers K, Henley WE, Gunn-Moore DA, May JM, Gruffydd-Jones TJ, Bessant C. A questionnaire-based study of gestation, parturition and neonatal mortality in pedigree breeding cats in the UK. J Feline Med Surg. 2006;8(3):145-157.","url":"https://doi.org/10.1016/j.jfms.2005.10.003","retrieved":"2026-09-20"},"method":{"type":"computed","from":["data/mortality-sparkes2006.json"],"how":"100 - 'mean % of kittens born alive' (95.3%) from Table 1.","n":41},"status":"verified","license":"facts-only","caveats":["Study sample n=41 litters."]},{"id":"mortality-sparkes2006-8week-asian","value":2.7,"unit":"percentage points dead between birth and 8 weeks","subject":"Asian: birth-to-8-week kitten mortality, UK pedigree litters (Sparkes et al. 2006)","asof":"2026-09-20","source":{"publisher":"Journal of Feline Medicine and Surgery (SAGE)","title":"Sparkes AH, Rogers K, Henley WE, Gunn-Moore DA, May JM, Gruffydd-Jones TJ, Bessant C. A questionnaire-based study of gestation, parturition and neonatal mortality in pedigree breeding cats in the UK. J Feline Med Surg. 2006;8(3):145-157.","url":"https://doi.org/10.1016/j.jfms.2005.10.003","retrieved":"2026-09-20"},"method":{"type":"computed","from":["data/mortality-sparkes2006.json"],"how":"Table 1: 'mean % of kittens born alive' (95.3%) minus 'mean % alive at 8 weeks' (92.6%).","n":41},"status":"verified","license":"facts-only","caveats":["Study sample n=41 litters."]},{"id":"mortality-sparkes2006-stillbirth-abyssinian","value":2.2,"unit":"percent stillborn","subject":"Abyssinian: stillbirth rate, UK pedigree litters (Sparkes et al. 2006)","asof":"2026-09-20","source":{"publisher":"Journal of Feline Medicine and Surgery (SAGE)","title":"Sparkes AH, Rogers K, Henley WE, Gunn-Moore DA, May JM, Gruffydd-Jones TJ, Bessant C. A questionnaire-based study of gestation, parturition and neonatal mortality in pedigree breeding cats in the UK. J Feline Med Surg. 2006;8(3):145-157.","url":"https://doi.org/10.1016/j.jfms.2005.10.003","retrieved":"2026-09-20"},"method":{"type":"computed","from":["data/mortality-sparkes2006.json"],"how":"100 - 'mean % of kittens born alive' (97.8%) from Table 1.","n":40},"status":"verified","license":"facts-only","caveats":["Study sample n=40 litters."]},{"id":"mortality-sparkes2006-8week-abyssinian","value":4.3,"unit":"percentage points dead between birth and 8 weeks","subject":"Abyssinian: birth-to-8-week kitten mortality, UK pedigree litters (Sparkes et al. 2006)","asof":"2026-09-20","source":{"publisher":"Journal of Feline Medicine and Surgery (SAGE)","title":"Sparkes AH, Rogers K, Henley WE, Gunn-Moore DA, May JM, Gruffydd-Jones TJ, Bessant C. A questionnaire-based study of gestation, parturition and neonatal mortality in pedigree breeding cats in the UK. J Feline Med Surg. 2006;8(3):145-157.","url":"https://doi.org/10.1016/j.jfms.2005.10.003","retrieved":"2026-09-20"},"method":{"type":"computed","from":["data/mortality-sparkes2006.json"],"how":"Table 1: 'mean % of kittens born alive' (97.8%) minus 'mean % alive at 8 weeks' (93.5%).","n":40},"status":"verified","license":"facts-only","caveats":["Study sample n=40 litters."]},{"id":"mortality-sparkes2006-stillbirth-korat","value":3.1,"unit":"percent stillborn","subject":"Korat: stillbirth rate, UK pedigree litters (Sparkes et al. 2006)","asof":"2026-09-20","source":{"publisher":"Journal of Feline Medicine and Surgery (SAGE)","title":"Sparkes AH, Rogers K, Henley WE, Gunn-Moore DA, May JM, Gruffydd-Jones TJ, Bessant C. A questionnaire-based study of gestation, parturition and neonatal mortality in pedigree breeding cats in the UK. J Feline Med Surg. 2006;8(3):145-157.","url":"https://doi.org/10.1016/j.jfms.2005.10.003","retrieved":"2026-09-20"},"method":{"type":"computed","from":["data/mortality-sparkes2006.json"],"how":"100 - 'mean % of kittens born alive' (96.9%) from Table 1.","n":32},"status":"verified","license":"facts-only","caveats":["Study sample n=32 litters."]},{"id":"mortality-sparkes2006-8week-korat","value":11.6,"unit":"percentage points dead between birth and 8 weeks","subject":"Korat: birth-to-8-week kitten mortality, UK pedigree litters (Sparkes et al. 2006)","asof":"2026-09-20","source":{"publisher":"Journal of Feline Medicine and Surgery (SAGE)","title":"Sparkes AH, Rogers K, Henley WE, Gunn-Moore DA, May JM, Gruffydd-Jones TJ, Bessant C. A questionnaire-based study of gestation, parturition and neonatal mortality in pedigree breeding cats in the UK. J Feline Med Surg. 2006;8(3):145-157.","url":"https://doi.org/10.1016/j.jfms.2005.10.003","retrieved":"2026-09-20"},"method":{"type":"computed","from":["data/mortality-sparkes2006.json"],"how":"Table 1: 'mean % of kittens born alive' (96.9%) minus 'mean % alive at 8 weeks' (85.3%).","n":32},"status":"verified","license":"facts-only","caveats":["Study sample n=32 litters."]},{"id":"mortality-sparkes2006-stillbirth-somali","value":5.7,"unit":"percent stillborn","subject":"Somali: stillbirth rate, UK pedigree litters (Sparkes et al. 2006)","asof":"2026-09-20","source":{"publisher":"Journal of Feline Medicine and Surgery (SAGE)","title":"Sparkes AH, Rogers K, Henley WE, Gunn-Moore DA, May JM, Gruffydd-Jones TJ, Bessant C. A questionnaire-based study of gestation, parturition and neonatal mortality in pedigree breeding cats in the UK. J Feline Med Surg. 2006;8(3):145-157.","url":"https://doi.org/10.1016/j.jfms.2005.10.003","retrieved":"2026-09-20"},"method":{"type":"computed","from":["data/mortality-sparkes2006.json"],"how":"100 - 'mean % of kittens born alive' (94.3%) from Table 1.","n":31},"status":"verified","license":"facts-only","caveats":["Study sample n=31 litters."]},{"id":"mortality-sparkes2006-8week-somali","value":8.7,"unit":"percentage points dead between birth and 8 weeks","subject":"Somali: birth-to-8-week kitten mortality, UK pedigree litters (Sparkes et al. 2006)","asof":"2026-09-20","source":{"publisher":"Journal of Feline Medicine and Surgery (SAGE)","title":"Sparkes AH, Rogers K, Henley WE, Gunn-Moore DA, May JM, Gruffydd-Jones TJ, Bessant C. A questionnaire-based study of gestation, parturition and neonatal mortality in pedigree breeding cats in the UK. J Feline Med Surg. 2006;8(3):145-157.","url":"https://doi.org/10.1016/j.jfms.2005.10.003","retrieved":"2026-09-20"},"method":{"type":"computed","from":["data/mortality-sparkes2006.json"],"how":"Table 1: 'mean % of kittens born alive' (94.3%) minus 'mean % alive at 8 weeks' (85.6%).","n":31},"status":"verified","license":"facts-only","caveats":["Study sample n=31 litters."]},{"id":"mortality-sparkes2006-stillbirth-maine-coon","value":1.4,"unit":"percent stillborn","subject":"Maine Coon: stillbirth rate, UK pedigree litters (Sparkes et al. 2006)","asof":"2026-09-20","source":{"publisher":"Journal of Feline Medicine and Surgery (SAGE)","title":"Sparkes AH, Rogers K, Henley WE, Gunn-Moore DA, May JM, Gruffydd-Jones TJ, Bessant C. A questionnaire-based study of gestation, parturition and neonatal mortality in pedigree breeding cats in the UK. J Feline Med Surg. 2006;8(3):145-157.","url":"https://doi.org/10.1016/j.jfms.2005.10.003","retrieved":"2026-09-20"},"method":{"type":"computed","from":["data/mortality-sparkes2006.json"],"how":"100 - 'mean % of kittens born alive' (98.6%) from Table 1.","n":27},"status":"verified","license":"facts-only","caveats":["Study sample n=27 litters."]},{"id":"mortality-sparkes2006-8week-maine-coon","value":8.4,"unit":"percentage points dead between birth and 8 weeks","subject":"Maine Coon: birth-to-8-week kitten mortality, UK pedigree litters (Sparkes et al. 2006)","asof":"2026-09-20","source":{"publisher":"Journal of Feline Medicine and Surgery (SAGE)","title":"Sparkes AH, Rogers K, Henley WE, Gunn-Moore DA, May JM, Gruffydd-Jones TJ, Bessant C. A questionnaire-based study of gestation, parturition and neonatal mortality in pedigree breeding cats in the UK. J Feline Med Surg. 2006;8(3):145-157.","url":"https://doi.org/10.1016/j.jfms.2005.10.003","retrieved":"2026-09-20"},"method":{"type":"computed","from":["data/mortality-sparkes2006.json"],"how":"Table 1: 'mean % of kittens born alive' (98.6%) minus 'mean % alive at 8 weeks' (90.2%).","n":27},"status":"verified","license":"facts-only","caveats":["Study sample n=27 litters."]},{"id":"mortality-sparkes2006-stillbirth-tonkinese","value":6.8,"unit":"percent stillborn","subject":"Tonkinese: stillbirth rate, UK pedigree litters (Sparkes et al. 2006)","asof":"2026-09-20","source":{"publisher":"Journal of Feline Medicine and Surgery (SAGE)","title":"Sparkes AH, Rogers K, Henley WE, Gunn-Moore DA, May JM, Gruffydd-Jones TJ, Bessant C. A questionnaire-based study of gestation, parturition and neonatal mortality in pedigree breeding cats in the UK. J Feline Med Surg. 2006;8(3):145-157.","url":"https://doi.org/10.1016/j.jfms.2005.10.003","retrieved":"2026-09-20"},"method":{"type":"computed","from":["data/mortality-sparkes2006.json"],"how":"100 - 'mean % of kittens born alive' (93.2%) from Table 1.","n":27},"status":"verified","license":"facts-only","caveats":["Study sample n=27 litters."]},{"id":"mortality-sparkes2006-8week-tonkinese","value":11.1,"unit":"percentage points dead between birth and 8 weeks","subject":"Tonkinese: birth-to-8-week kitten mortality, UK pedigree litters (Sparkes et al. 2006)","asof":"2026-09-20","source":{"publisher":"Journal of Feline Medicine and Surgery (SAGE)","title":"Sparkes AH, Rogers K, Henley WE, Gunn-Moore DA, May JM, Gruffydd-Jones TJ, Bessant C. A questionnaire-based study of gestation, parturition and neonatal mortality in pedigree breeding cats in the UK. J Feline Med Surg. 2006;8(3):145-157.","url":"https://doi.org/10.1016/j.jfms.2005.10.003","retrieved":"2026-09-20"},"method":{"type":"computed","from":["data/mortality-sparkes2006.json"],"how":"Table 1: 'mean % of kittens born alive' (93.2%) minus 'mean % alive at 8 weeks' (82.1%).","n":27},"status":"verified","license":"facts-only","caveats":["Study sample n=27 litters."]},{"id":"mortality-sparkes2006-stillbirth-exotic-shorthair","value":12.5,"unit":"percent stillborn","subject":"Exotic Shorthair: stillbirth rate, UK pedigree litters (Sparkes et al. 2006)","asof":"2026-09-20","source":{"publisher":"Journal of Feline Medicine and Surgery (SAGE)","title":"Sparkes AH, Rogers K, Henley WE, Gunn-Moore DA, May JM, Gruffydd-Jones TJ, Bessant C. A questionnaire-based study of gestation, parturition and neonatal mortality in pedigree breeding cats in the UK. J Feline Med Surg. 2006;8(3):145-157.","url":"https://doi.org/10.1016/j.jfms.2005.10.003","retrieved":"2026-09-20"},"method":{"type":"computed","from":["data/mortality-sparkes2006.json"],"how":"100 - 'mean % of kittens born alive' (87.5%) from Table 1.","n":21},"status":"verified","license":"facts-only","caveats":["Study sample n=21 litters."]},{"id":"mortality-sparkes2006-8week-exotic-shorthair","value":5.6,"unit":"percentage points dead between birth and 8 weeks","subject":"Exotic Shorthair: birth-to-8-week kitten mortality, UK pedigree litters (Sparkes et al. 2006)","asof":"2026-09-20","source":{"publisher":"Journal of Feline Medicine and Surgery (SAGE)","title":"Sparkes AH, Rogers K, Henley WE, Gunn-Moore DA, May JM, Gruffydd-Jones TJ, Bessant C. A questionnaire-based study of gestation, parturition and neonatal mortality in pedigree breeding cats in the UK. J Feline Med Surg. 2006;8(3):145-157.","url":"https://doi.org/10.1016/j.jfms.2005.10.003","retrieved":"2026-09-20"},"method":{"type":"computed","from":["data/mortality-sparkes2006.json"],"how":"Table 1: 'mean % of kittens born alive' (87.5%) minus 'mean % alive at 8 weeks' (81.9%).","n":21},"status":"verified","license":"facts-only","caveats":["Study sample n=21 litters."]},{"id":"headline-dystocia-rate-cerna2024","value":14.9,"unit":"percent of litters requiring veterinary intervention for dystocia","subject":"Dystocia rate across 45 pedigree cat breeds, international breeder survey (Cerna et al. 2024)","asof":"2026-09-20","source":{"publisher":"Journal of Feline Medicine and Surgery (SAGE)","title":"Cerna P, Pugalendhi SJ, Shaw DJ, Gunn-Moore DA. Feline dystocia and kitten mortality up to 12 weeks in pedigree cats. J Feline Med Surg. 2024;26(12):1098612X241284766.","url":"https://doi.org/10.1177/1098612X241284766","retrieved":"2026-09-20"},"method":{"type":"verbatim-quote","from":["data/breeding-cerna2024.json"],"how":"Table 1, 'Summary of pedigree breeds with at least 10 litters for each breed' -- 19 breeds with >=10 litters each, 853 litters total from 448 breeders (2019), 45 pedigree breeds by queen's breed overall (this table's own rows are the >=10-litter subset). Overall study headline: dystocia requiring veterinary intervention 14.9% (range 0-22.2% by breed), caesarean section required for 10.7% of litters overall.","n":853},"status":"verified","license":"facts-only","caveats":["Breed range 0.0-22.2%, but the study found no statistically significant breed effect on dystocia risk -- the spread is descriptive, not a confirmed per-breed difference."]},{"id":"headline-csection-rate-cerna2024","value":10.7,"unit":"percent of litters delivered by caesarean section","subject":"Caesarean-section rate across 45 pedigree cat breeds, international breeder survey (Cerna et al. 2024)","asof":"2026-09-20","source":{"publisher":"Journal of Feline Medicine and Surgery (SAGE)","title":"Cerna P, Pugalendhi SJ, Shaw DJ, Gunn-Moore DA. Feline dystocia and kitten mortality up to 12 weeks in pedigree cats. J Feline Med Surg. 2024;26(12):1098612X241284766.","url":"https://doi.org/10.1177/1098612X241284766","retrieved":"2026-09-20"},"method":{"type":"verbatim-quote","from":["data/breeding-cerna2024.json"],"how":"Table 1, 'Summary of pedigree breeds with at least 10 litters for each breed' -- 19 breeds with >=10 litters each, 853 litters total from 448 breeders (2019), 45 pedigree breeds by queen's breed overall (this table's own rows are the >=10-litter subset). Overall study headline: dystocia requiring veterinary intervention 14.9% (range 0-22.2% by breed), caesarean section required for 10.7% of litters overall.","n":853},"status":"verified","license":"facts-only","caveats":["Most common in Cornish Rex per the study's own text."]},{"id":"breeding-cerna2024-litter-size-abyssinian-somali","value":3.49,"unit":"mean kittens per litter","subject":"Abyssinian/Somali: mean litter size (Cerna et al. 2024)","method":{"type":"verbatim-quote","from":["data/breeding-cerna2024.json"],"how":"Table 1, 'Summary of pedigree breeds with at least 10 litters for each breed' -- 19 breeds with >=10 litters each, 853 litters total from 448 breeders (2019), 45 pedigree breeds by queen's breed overall (this table's own rows are the >=10-litter subset). Overall study headline: dystocia requiring veterinary intervention 14.9% (range 0-22.2% by breed), caesarean section required for 10.7% of litters overall.","n":55},"asof":"2026-09-20","source":{"publisher":"Journal of Feline Medicine and Surgery (SAGE)","title":"Cerna P, Pugalendhi SJ, Shaw DJ, Gunn-Moore DA. Feline dystocia and kitten mortality up to 12 weeks in pedigree cats. J Feline Med Surg. 2024;26(12):1098612X241284766.","url":"https://doi.org/10.1177/1098612X241284766","retrieved":"2026-09-20"},"status":"verified","license":"facts-only","caveats":["Study sample n=55 litters.","Study breed label 'Abyssinian/Somali' pools variants or does not map 1:1 onto a single roster breed (e.g. joint shorthair/longhair or joint-breed labels in the source table)."]},{"id":"breeding-cerna2024-csection-abyssinian-somali","value":9.1,"unit":"percent of litters by caesarean section","subject":"Abyssinian/Somali: caesarean-section rate (Cerna et al. 2024)","method":{"type":"verbatim-quote","from":["data/breeding-cerna2024.json"],"how":"Table 1, 'Summary of pedigree breeds with at least 10 litters for each breed' -- 19 breeds with >=10 litters each, 853 litters total from 448 breeders (2019), 45 pedigree breeds by queen's breed overall (this table's own rows are the >=10-litter subset). Overall study headline: dystocia requiring veterinary intervention 14.9% (range 0-22.2% by breed), caesarean section required for 10.7% of litters overall.","n":55},"asof":"2026-09-20","source":{"publisher":"Journal of Feline Medicine and Surgery (SAGE)","title":"Cerna P, Pugalendhi SJ, Shaw DJ, Gunn-Moore DA. Feline dystocia and kitten mortality up to 12 weeks in pedigree cats. J Feline Med Surg. 2024;26(12):1098612X241284766.","url":"https://doi.org/10.1177/1098612X241284766","retrieved":"2026-09-20"},"status":"verified","license":"facts-only","caveats":["Study sample n=55 litters.","Study breed label 'Abyssinian/Somali' pools variants or does not map 1:1 onto a single roster breed (e.g. joint shorthair/longhair or joint-breed labels in the source table)."]},{"id":"breeding-cerna2024-mortality12wk-abyssinian-somali","value":10.9,"unit":"percent cumulative kitten mortality to 12 weeks","subject":"Abyssinian/Somali: cumulative kitten mortality to 12 weeks, stillbirths included (Cerna et al. 2024)","method":{"type":"verbatim-quote","from":["data/breeding-cerna2024.json"],"how":"Table 1, 'Summary of pedigree breeds with at least 10 litters for each breed' -- 19 breeds with >=10 litters each, 853 litters total from 448 breeders (2019), 45 pedigree breeds by queen's breed overall (this table's own rows are the >=10-litter subset). Overall study headline: dystocia requiring veterinary intervention 14.9% (range 0-22.2% by breed), caesarean section required for 10.7% of litters overall.","n":55},"asof":"2026-09-20","source":{"publisher":"Journal of Feline Medicine and Surgery (SAGE)","title":"Cerna P, Pugalendhi SJ, Shaw DJ, Gunn-Moore DA. Feline dystocia and kitten mortality up to 12 weeks in pedigree cats. J Feline Med Surg. 2024;26(12):1098612X241284766.","url":"https://doi.org/10.1177/1098612X241284766","retrieved":"2026-09-20"},"status":"verified","license":"facts-only","caveats":["Study sample n=55 litters.","Study breed label 'Abyssinian/Somali' pools variants or does not map 1:1 onto a single roster breed (e.g. joint shorthair/longhair or joint-breed labels in the source table)."]},{"id":"breeding-cerna2024-litter-size-balinese-siamese-oriental-havana","value":4.83,"unit":"mean kittens per litter","subject":"Balinese/ Siamese/Oriental/Havana: mean litter size (Cerna et al. 2024)","method":{"type":"verbatim-quote","from":["data/breeding-cerna2024.json"],"how":"Table 1, 'Summary of pedigree breeds with at least 10 litters for each breed' -- 19 breeds with >=10 litters each, 853 litters total from 448 breeders (2019), 45 pedigree breeds by queen's breed overall (this table's own rows are the >=10-litter subset). Overall study headline: dystocia requiring veterinary intervention 14.9% (range 0-22.2% by breed), caesarean section required for 10.7% of litters overall.","n":70},"asof":"2026-09-20","source":{"publisher":"Journal of Feline Medicine and Surgery (SAGE)","title":"Cerna P, Pugalendhi SJ, Shaw DJ, Gunn-Moore DA. Feline dystocia and kitten mortality up to 12 weeks in pedigree cats. J Feline Med Surg. 2024;26(12):1098612X241284766.","url":"https://doi.org/10.1177/1098612X241284766","retrieved":"2026-09-20"},"status":"verified","license":"facts-only","caveats":["Study sample n=70 litters.","Study breed label 'Balinese/ Siamese/Oriental/Havana' pools variants or does not map 1:1 onto a single roster breed (e.g. joint shorthair/longhair or joint-breed labels in the source table)."]},{"id":"breeding-cerna2024-csection-balinese-siamese-oriental-havana","value":20.0,"unit":"percent of litters by caesarean section","subject":"Balinese/ Siamese/Oriental/Havana: caesarean-section rate (Cerna et al. 2024)","method":{"type":"verbatim-quote","from":["data/breeding-cerna2024.json"],"how":"Table 1, 'Summary of pedigree breeds with at least 10 litters for each breed' -- 19 breeds with >=10 litters each, 853 litters total from 448 breeders (2019), 45 pedigree breeds by queen's breed overall (this table's own rows are the >=10-litter subset). Overall study headline: dystocia requiring veterinary intervention 14.9% (range 0-22.2% by breed), caesarean section required for 10.7% of litters overall.","n":70},"asof":"2026-09-20","source":{"publisher":"Journal of Feline Medicine and Surgery (SAGE)","title":"Cerna P, Pugalendhi SJ, Shaw DJ, Gunn-Moore DA. Feline dystocia and kitten mortality up to 12 weeks in pedigree cats. J Feline Med Surg. 2024;26(12):1098612X241284766.","url":"https://doi.org/10.1177/1098612X241284766","retrieved":"2026-09-20"},"status":"verified","license":"facts-only","caveats":["Study sample n=70 litters.","Study breed label 'Balinese/ Siamese/Oriental/Havana' pools variants or does not map 1:1 onto a single roster breed (e.g. joint shorthair/longhair or joint-breed labels in the source table)."]},{"id":"breeding-cerna2024-mortality12wk-balinese-siamese-oriental-havana","value":17.8,"unit":"percent cumulative kitten mortality to 12 weeks","subject":"Balinese/ Siamese/Oriental/Havana: cumulative kitten mortality to 12 weeks, stillbirths included (Cerna et al. 2024)","method":{"type":"verbatim-quote","from":["data/breeding-cerna2024.json"],"how":"Table 1, 'Summary of pedigree breeds with at least 10 litters for each breed' -- 19 breeds with >=10 litters each, 853 litters total from 448 breeders (2019), 45 pedigree breeds by queen's breed overall (this table's own rows are the >=10-litter subset). Overall study headline: dystocia requiring veterinary intervention 14.9% (range 0-22.2% by breed), caesarean section required for 10.7% of litters overall.","n":70},"asof":"2026-09-20","source":{"publisher":"Journal of Feline Medicine and Surgery (SAGE)","title":"Cerna P, Pugalendhi SJ, Shaw DJ, Gunn-Moore DA. Feline dystocia and kitten mortality up to 12 weeks in pedigree cats. J Feline Med Surg. 2024;26(12):1098612X241284766.","url":"https://doi.org/10.1177/1098612X241284766","retrieved":"2026-09-20"},"status":"verified","license":"facts-only","caveats":["Study sample n=70 litters.","Study breed label 'Balinese/ Siamese/Oriental/Havana' pools variants or does not map 1:1 onto a single roster breed (e.g. joint shorthair/longhair or joint-breed labels in the source table)."]},{"id":"breeding-cerna2024-litter-size-bengal","value":4.95,"unit":"mean kittens per litter","subject":"Bengal: mean litter size (Cerna et al. 2024)","method":{"type":"verbatim-quote","from":["data/breeding-cerna2024.json"],"how":"Table 1, 'Summary of pedigree breeds with at least 10 litters for each breed' -- 19 breeds with >=10 litters each, 853 litters total from 448 breeders (2019), 45 pedigree breeds by queen's breed overall (this table's own rows are the >=10-litter subset). Overall study headline: dystocia requiring veterinary intervention 14.9% (range 0-22.2% by breed), caesarean section required for 10.7% of litters overall.","n":19},"asof":"2026-09-20","source":{"publisher":"Journal of Feline Medicine and Surgery (SAGE)","title":"Cerna P, Pugalendhi SJ, Shaw DJ, Gunn-Moore DA. Feline dystocia and kitten mortality up to 12 weeks in pedigree cats. J Feline Med Surg. 2024;26(12):1098612X241284766.","url":"https://doi.org/10.1177/1098612X241284766","retrieved":"2026-09-20"},"status":"verified","license":"facts-only","caveats":["Study sample n=19 litters.","Small breed sample; treat as imprecise."]},{"id":"breeding-cerna2024-csection-bengal","value":10.5,"unit":"percent of litters by caesarean section","subject":"Bengal: caesarean-section rate (Cerna et al. 2024)","method":{"type":"verbatim-quote","from":["data/breeding-cerna2024.json"],"how":"Table 1, 'Summary of pedigree breeds with at least 10 litters for each breed' -- 19 breeds with >=10 litters each, 853 litters total from 448 breeders (2019), 45 pedigree breeds by queen's breed overall (this table's own rows are the >=10-litter subset). Overall study headline: dystocia requiring veterinary intervention 14.9% (range 0-22.2% by breed), caesarean section required for 10.7% of litters overall.","n":19},"asof":"2026-09-20","source":{"publisher":"Journal of Feline Medicine and Surgery (SAGE)","title":"Cerna P, Pugalendhi SJ, Shaw DJ, Gunn-Moore DA. Feline dystocia and kitten mortality up to 12 weeks in pedigree cats. J Feline Med Surg. 2024;26(12):1098612X241284766.","url":"https://doi.org/10.1177/1098612X241284766","retrieved":"2026-09-20"},"status":"verified","license":"facts-only","caveats":["Study sample n=19 litters.","Small breed sample; treat as imprecise."]},{"id":"breeding-cerna2024-mortality12wk-bengal","value":23.4,"unit":"percent cumulative kitten mortality to 12 weeks","subject":"Bengal: cumulative kitten mortality to 12 weeks, stillbirths included (Cerna et al. 2024)","method":{"type":"verbatim-quote","from":["data/breeding-cerna2024.json"],"how":"Table 1, 'Summary of pedigree breeds with at least 10 litters for each breed' -- 19 breeds with >=10 litters each, 853 litters total from 448 breeders (2019), 45 pedigree breeds by queen's breed overall (this table's own rows are the >=10-litter subset). Overall study headline: dystocia requiring veterinary intervention 14.9% (range 0-22.2% by breed), caesarean section required for 10.7% of litters overall.","n":19},"asof":"2026-09-20","source":{"publisher":"Journal of Feline Medicine and Surgery (SAGE)","title":"Cerna P, Pugalendhi SJ, Shaw DJ, Gunn-Moore DA. Feline dystocia and kitten mortality up to 12 weeks in pedigree cats. J Feline Med Surg. 2024;26(12):1098612X241284766.","url":"https://doi.org/10.1177/1098612X241284766","retrieved":"2026-09-20"},"status":"verified","license":"facts-only","caveats":["Study sample n=19 litters.","Small breed sample; treat as imprecise."]},{"id":"breeding-cerna2024-litter-size-bsh-blh","value":4.88,"unit":"mean kittens per litter","subject":"BSH/BLH: mean litter size (Cerna et al. 2024)","method":{"type":"verbatim-quote","from":["data/breeding-cerna2024.json"],"how":"Table 1, 'Summary of pedigree breeds with at least 10 litters for each breed' -- 19 breeds with >=10 litters each, 853 litters total from 448 breeders (2019), 45 pedigree breeds by queen's breed overall (this table's own rows are the >=10-litter subset). Overall study headline: dystocia requiring veterinary intervention 14.9% (range 0-22.2% by breed), caesarean section required for 10.7% of litters overall.","n":160},"asof":"2026-09-20","source":{"publisher":"Journal of Feline Medicine and Surgery (SAGE)","title":"Cerna P, Pugalendhi SJ, Shaw DJ, Gunn-Moore DA. Feline dystocia and kitten mortality up to 12 weeks in pedigree cats. J Feline Med Surg. 2024;26(12):1098612X241284766.","url":"https://doi.org/10.1177/1098612X241284766","retrieved":"2026-09-20"},"status":"verified","license":"facts-only","caveats":["Study sample n=160 litters.","Study breed label 'BSH/BLH' pools variants or does not map 1:1 onto a single roster breed (e.g. joint shorthair/longhair or joint-breed labels in the source table)."]},{"id":"breeding-cerna2024-csection-bsh-blh","value":13.1,"unit":"percent of litters by caesarean section","subject":"BSH/BLH: caesarean-section rate (Cerna et al. 2024)","method":{"type":"verbatim-quote","from":["data/breeding-cerna2024.json"],"how":"Table 1, 'Summary of pedigree breeds with at least 10 litters for each breed' -- 19 breeds with >=10 litters each, 853 litters total from 448 breeders (2019), 45 pedigree breeds by queen's breed overall (this table's own rows are the >=10-litter subset). Overall study headline: dystocia requiring veterinary intervention 14.9% (range 0-22.2% by breed), caesarean section required for 10.7% of litters overall.","n":160},"asof":"2026-09-20","source":{"publisher":"Journal of Feline Medicine and Surgery (SAGE)","title":"Cerna P, Pugalendhi SJ, Shaw DJ, Gunn-Moore DA. Feline dystocia and kitten mortality up to 12 weeks in pedigree cats. J Feline Med Surg. 2024;26(12):1098612X241284766.","url":"https://doi.org/10.1177/1098612X241284766","retrieved":"2026-09-20"},"status":"verified","license":"facts-only","caveats":["Study sample n=160 litters.","Study breed label 'BSH/BLH' pools variants or does not map 1:1 onto a single roster breed (e.g. joint shorthair/longhair or joint-breed labels in the source table)."]},{"id":"breeding-cerna2024-mortality12wk-bsh-blh","value":18.1,"unit":"percent cumulative kitten mortality to 12 weeks","subject":"BSH/BLH: cumulative kitten mortality to 12 weeks, stillbirths included (Cerna et al. 2024)","method":{"type":"verbatim-quote","from":["data/breeding-cerna2024.json"],"how":"Table 1, 'Summary of pedigree breeds with at least 10 litters for each breed' -- 19 breeds with >=10 litters each, 853 litters total from 448 breeders (2019), 45 pedigree breeds by queen's breed overall (this table's own rows are the >=10-litter subset). Overall study headline: dystocia requiring veterinary intervention 14.9% (range 0-22.2% by breed), caesarean section required for 10.7% of litters overall.","n":160},"asof":"2026-09-20","source":{"publisher":"Journal of Feline Medicine and Surgery (SAGE)","title":"Cerna P, Pugalendhi SJ, Shaw DJ, Gunn-Moore DA. Feline dystocia and kitten mortality up to 12 weeks in pedigree cats. J Feline Med Surg. 2024;26(12):1098612X241284766.","url":"https://doi.org/10.1177/1098612X241284766","retrieved":"2026-09-20"},"status":"verified","license":"facts-only","caveats":["Study sample n=160 litters.","Study breed label 'BSH/BLH' pools variants or does not map 1:1 onto a single roster breed (e.g. joint shorthair/longhair or joint-breed labels in the source table)."]},{"id":"breeding-cerna2024-litter-size-burmese","value":5.25,"unit":"mean kittens per litter","subject":"Burmese: mean litter size (Cerna et al. 2024)","method":{"type":"verbatim-quote","from":["data/breeding-cerna2024.json"],"how":"Table 1, 'Summary of pedigree breeds with at least 10 litters for each breed' -- 19 breeds with >=10 litters each, 853 litters total from 448 breeders (2019), 45 pedigree breeds by queen's breed overall (this table's own rows are the >=10-litter subset). Overall study headline: dystocia requiring veterinary intervention 14.9% (range 0-22.2% by breed), caesarean section required for 10.7% of litters overall.","n":24},"asof":"2026-09-20","source":{"publisher":"Journal of Feline Medicine and Surgery (SAGE)","title":"Cerna P, Pugalendhi SJ, Shaw DJ, Gunn-Moore DA. Feline dystocia and kitten mortality up to 12 weeks in pedigree cats. J Feline Med Surg. 2024;26(12):1098612X241284766.","url":"https://doi.org/10.1177/1098612X241284766","retrieved":"2026-09-20"},"status":"verified","license":"facts-only","caveats":["Study sample n=24 litters."]},{"id":"breeding-cerna2024-csection-burmese","value":20.8,"unit":"percent of litters by caesarean section","subject":"Burmese: caesarean-section rate (Cerna et al. 2024)","method":{"type":"verbatim-quote","from":["data/breeding-cerna2024.json"],"how":"Table 1, 'Summary of pedigree breeds with at least 10 litters for each breed' -- 19 breeds with >=10 litters each, 853 litters total from 448 breeders (2019), 45 pedigree breeds by queen's breed overall (this table's own rows are the >=10-litter subset). Overall study headline: dystocia requiring veterinary intervention 14.9% (range 0-22.2% by breed), caesarean section required for 10.7% of litters overall.","n":24},"asof":"2026-09-20","source":{"publisher":"Journal of Feline Medicine and Surgery (SAGE)","title":"Cerna P, Pugalendhi SJ, Shaw DJ, Gunn-Moore DA. Feline dystocia and kitten mortality up to 12 weeks in pedigree cats. J Feline Med Surg. 2024;26(12):1098612X241284766.","url":"https://doi.org/10.1177/1098612X241284766","retrieved":"2026-09-20"},"status":"verified","license":"facts-only","caveats":["Study sample n=24 litters."]},{"id":"breeding-cerna2024-mortality12wk-burmese","value":16.7,"unit":"percent cumulative kitten mortality to 12 weeks","subject":"Burmese: cumulative kitten mortality to 12 weeks, stillbirths included (Cerna et al. 2024)","method":{"type":"verbatim-quote","from":["data/breeding-cerna2024.json"],"how":"Table 1, 'Summary of pedigree breeds with at least 10 litters for each breed' -- 19 breeds with >=10 litters each, 853 litters total from 448 breeders (2019), 45 pedigree breeds by queen's breed overall (this table's own rows are the >=10-litter subset). Overall study headline: dystocia requiring veterinary intervention 14.9% (range 0-22.2% by breed), caesarean section required for 10.7% of litters overall.","n":24},"asof":"2026-09-20","source":{"publisher":"Journal of Feline Medicine and Surgery (SAGE)","title":"Cerna P, Pugalendhi SJ, Shaw DJ, Gunn-Moore DA. Feline dystocia and kitten mortality up to 12 weeks in pedigree cats. J Feline Med Surg. 2024;26(12):1098612X241284766.","url":"https://doi.org/10.1177/1098612X241284766","retrieved":"2026-09-20"},"status":"verified","license":"facts-only","caveats":["Study sample n=24 litters."]},{"id":"breeding-cerna2024-litter-size-cornish-rex","value":4.67,"unit":"mean kittens per litter","subject":"Cornish Rex: mean litter size (Cerna et al. 2024)","method":{"type":"verbatim-quote","from":["data/breeding-cerna2024.json"],"how":"Table 1, 'Summary of pedigree breeds with at least 10 litters for each breed' -- 19 breeds with >=10 litters each, 853 litters total from 448 breeders (2019), 45 pedigree breeds by queen's breed overall (this table's own rows are the >=10-litter subset). Overall study headline: dystocia requiring veterinary intervention 14.9% (range 0-22.2% by breed), caesarean section required for 10.7% of litters overall.","n":18},"asof":"2026-09-20","source":{"publisher":"Journal of Feline Medicine and Surgery (SAGE)","title":"Cerna P, Pugalendhi SJ, Shaw DJ, Gunn-Moore DA. Feline dystocia and kitten mortality up to 12 weeks in pedigree cats. J Feline Med Surg. 2024;26(12):1098612X241284766.","url":"https://doi.org/10.1177/1098612X241284766","retrieved":"2026-09-20"},"status":"verified","license":"facts-only","caveats":["Study sample n=18 litters.","Small breed sample; treat as imprecise."]},{"id":"breeding-cerna2024-csection-cornish-rex","value":22.2,"unit":"percent of litters by caesarean section","subject":"Cornish Rex: caesarean-section rate (Cerna et al. 2024)","method":{"type":"verbatim-quote","from":["data/breeding-cerna2024.json"],"how":"Table 1, 'Summary of pedigree breeds with at least 10 litters for each breed' -- 19 breeds with >=10 litters each, 853 litters total from 448 breeders (2019), 45 pedigree breeds by queen's breed overall (this table's own rows are the >=10-litter subset). Overall study headline: dystocia requiring veterinary intervention 14.9% (range 0-22.2% by breed), caesarean section required for 10.7% of litters overall.","n":18},"asof":"2026-09-20","source":{"publisher":"Journal of Feline Medicine and Surgery (SAGE)","title":"Cerna P, Pugalendhi SJ, Shaw DJ, Gunn-Moore DA. Feline dystocia and kitten mortality up to 12 weeks in pedigree cats. J Feline Med Surg. 2024;26(12):1098612X241284766.","url":"https://doi.org/10.1177/1098612X241284766","retrieved":"2026-09-20"},"status":"verified","license":"facts-only","caveats":["Study sample n=18 litters.","Small breed sample; treat as imprecise."]},{"id":"breeding-cerna2024-mortality12wk-cornish-rex","value":7.1,"unit":"percent cumulative kitten mortality to 12 weeks","subject":"Cornish Rex: cumulative kitten mortality to 12 weeks, stillbirths included (Cerna et al. 2024)","method":{"type":"verbatim-quote","from":["data/breeding-cerna2024.json"],"how":"Table 1, 'Summary of pedigree breeds with at least 10 litters for each breed' -- 19 breeds with >=10 litters each, 853 litters total from 448 breeders (2019), 45 pedigree breeds by queen's breed overall (this table's own rows are the >=10-litter subset). Overall study headline: dystocia requiring veterinary intervention 14.9% (range 0-22.2% by breed), caesarean section required for 10.7% of litters overall.","n":18},"asof":"2026-09-20","source":{"publisher":"Journal of Feline Medicine and Surgery (SAGE)","title":"Cerna P, Pugalendhi SJ, Shaw DJ, Gunn-Moore DA. Feline dystocia and kitten mortality up to 12 weeks in pedigree cats. J Feline Med Surg. 2024;26(12):1098612X241284766.","url":"https://doi.org/10.1177/1098612X241284766","retrieved":"2026-09-20"},"status":"verified","license":"facts-only","caveats":["Study sample n=18 litters.","Small breed sample; treat as imprecise."]},{"id":"breeding-cerna2024-litter-size-devon-rex","value":3.9,"unit":"mean kittens per litter","subject":"Devon Rex: mean litter size (Cerna et al. 2024)","method":{"type":"verbatim-quote","from":["data/breeding-cerna2024.json"],"how":"Table 1, 'Summary of pedigree breeds with at least 10 litters for each breed' -- 19 breeds with >=10 litters each, 853 litters total from 448 breeders (2019), 45 pedigree breeds by queen's breed overall (this table's own rows are the >=10-litter subset). Overall study headline: dystocia requiring veterinary intervention 14.9% (range 0-22.2% by breed), caesarean section required for 10.7% of litters overall.","n":31},"asof":"2026-09-20","source":{"publisher":"Journal of Feline Medicine and Surgery (SAGE)","title":"Cerna P, Pugalendhi SJ, Shaw DJ, Gunn-Moore DA. Feline dystocia and kitten mortality up to 12 weeks in pedigree cats. J Feline Med Surg. 2024;26(12):1098612X241284766.","url":"https://doi.org/10.1177/1098612X241284766","retrieved":"2026-09-20"},"status":"verified","license":"facts-only","caveats":["Study sample n=31 litters."]},{"id":"breeding-cerna2024-csection-devon-rex","value":9.7,"unit":"percent of litters by caesarean section","subject":"Devon Rex: caesarean-section rate (Cerna et al. 2024)","method":{"type":"verbatim-quote","from":["data/breeding-cerna2024.json"],"how":"Table 1, 'Summary of pedigree breeds with at least 10 litters for each breed' -- 19 breeds with >=10 litters each, 853 litters total from 448 breeders (2019), 45 pedigree breeds by queen's breed overall (this table's own rows are the >=10-litter subset). Overall study headline: dystocia requiring veterinary intervention 14.9% (range 0-22.2% by breed), caesarean section required for 10.7% of litters overall.","n":31},"asof":"2026-09-20","source":{"publisher":"Journal of Feline Medicine and Surgery (SAGE)","title":"Cerna P, Pugalendhi SJ, Shaw DJ, Gunn-Moore DA. Feline dystocia and kitten mortality up to 12 weeks in pedigree cats. J Feline Med Surg. 2024;26(12):1098612X241284766.","url":"https://doi.org/10.1177/1098612X241284766","retrieved":"2026-09-20"},"status":"verified","license":"facts-only","caveats":["Study sample n=31 litters."]},{"id":"breeding-cerna2024-mortality12wk-devon-rex","value":12.4,"unit":"percent cumulative kitten mortality to 12 weeks","subject":"Devon Rex: cumulative kitten mortality to 12 weeks, stillbirths included (Cerna et al. 2024)","method":{"type":"verbatim-quote","from":["data/breeding-cerna2024.json"],"how":"Table 1, 'Summary of pedigree breeds with at least 10 litters for each breed' -- 19 breeds with >=10 litters each, 853 litters total from 448 breeders (2019), 45 pedigree breeds by queen's breed overall (this table's own rows are the >=10-litter subset). Overall study headline: dystocia requiring veterinary intervention 14.9% (range 0-22.2% by breed), caesarean section required for 10.7% of litters overall.","n":31},"asof":"2026-09-20","source":{"publisher":"Journal of Feline Medicine and Surgery (SAGE)","title":"Cerna P, Pugalendhi SJ, Shaw DJ, Gunn-Moore DA. Feline dystocia and kitten mortality up to 12 weeks in pedigree cats. J Feline Med Surg. 2024;26(12):1098612X241284766.","url":"https://doi.org/10.1177/1098612X241284766","retrieved":"2026-09-20"},"status":"verified","license":"facts-only","caveats":["Study sample n=31 litters."]},{"id":"breeding-cerna2024-litter-size-exotic-persian","value":3.34,"unit":"mean kittens per litter","subject":"Exotic/Persian: mean litter size (Cerna et al. 2024)","method":{"type":"verbatim-quote","from":["data/breeding-cerna2024.json"],"how":"Table 1, 'Summary of pedigree breeds with at least 10 litters for each breed' -- 19 breeds with >=10 litters each, 853 litters total from 448 breeders (2019), 45 pedigree breeds by queen's breed overall (this table's own rows are the >=10-litter subset). Overall study headline: dystocia requiring veterinary intervention 14.9% (range 0-22.2% by breed), caesarean section required for 10.7% of litters overall.","n":44},"asof":"2026-09-20","source":{"publisher":"Journal of Feline Medicine and Surgery (SAGE)","title":"Cerna P, Pugalendhi SJ, Shaw DJ, Gunn-Moore DA. Feline dystocia and kitten mortality up to 12 weeks in pedigree cats. J Feline Med Surg. 2024;26(12):1098612X241284766.","url":"https://doi.org/10.1177/1098612X241284766","retrieved":"2026-09-20"},"status":"verified","license":"facts-only","caveats":["Study sample n=44 litters.","Study breed label 'Exotic/Persian' pools variants or does not map 1:1 onto a single roster breed (e.g. joint shorthair/longhair or joint-breed labels in the source table)."]},{"id":"breeding-cerna2024-csection-exotic-persian","value":2.3,"unit":"percent of litters by caesarean section","subject":"Exotic/Persian: caesarean-section rate (Cerna et al. 2024)","method":{"type":"verbatim-quote","from":["data/breeding-cerna2024.json"],"how":"Table 1, 'Summary of pedigree breeds with at least 10 litters for each breed' -- 19 breeds with >=10 litters each, 853 litters total from 448 breeders (2019), 45 pedigree breeds by queen's breed overall (this table's own rows are the >=10-litter subset). Overall study headline: dystocia requiring veterinary intervention 14.9% (range 0-22.2% by breed), caesarean section required for 10.7% of litters overall.","n":44},"asof":"2026-09-20","source":{"publisher":"Journal of Feline Medicine and Surgery (SAGE)","title":"Cerna P, Pugalendhi SJ, Shaw DJ, Gunn-Moore DA. Feline dystocia and kitten mortality up to 12 weeks in pedigree cats. J Feline Med Surg. 2024;26(12):1098612X241284766.","url":"https://doi.org/10.1177/1098612X241284766","retrieved":"2026-09-20"},"status":"verified","license":"facts-only","caveats":["Study sample n=44 litters.","Study breed label 'Exotic/Persian' pools variants or does not map 1:1 onto a single roster breed (e.g. joint shorthair/longhair or joint-breed labels in the source table)."]},{"id":"breeding-cerna2024-mortality12wk-exotic-persian","value":15.6,"unit":"percent cumulative kitten mortality to 12 weeks","subject":"Exotic/Persian: cumulative kitten mortality to 12 weeks, stillbirths included (Cerna et al. 2024)","method":{"type":"verbatim-quote","from":["data/breeding-cerna2024.json"],"how":"Table 1, 'Summary of pedigree breeds with at least 10 litters for each breed' -- 19 breeds with >=10 litters each, 853 litters total from 448 breeders (2019), 45 pedigree breeds by queen's breed overall (this table's own rows are the >=10-litter subset). Overall study headline: dystocia requiring veterinary intervention 14.9% (range 0-22.2% by breed), caesarean section required for 10.7% of litters overall.","n":44},"asof":"2026-09-20","source":{"publisher":"Journal of Feline Medicine and Surgery (SAGE)","title":"Cerna P, Pugalendhi SJ, Shaw DJ, Gunn-Moore DA. Feline dystocia and kitten mortality up to 12 weeks in pedigree cats. J Feline Med Surg. 2024;26(12):1098612X241284766.","url":"https://doi.org/10.1177/1098612X241284766","retrieved":"2026-09-20"},"status":"verified","license":"facts-only","caveats":["Study sample n=44 litters.","Study breed label 'Exotic/Persian' pools variants or does not map 1:1 onto a single roster breed (e.g. joint shorthair/longhair or joint-breed labels in the source table)."]},{"id":"breeding-cerna2024-litter-size-korat","value":4.5,"unit":"mean kittens per litter","subject":"Korat: mean litter size (Cerna et al. 2024)","method":{"type":"verbatim-quote","from":["data/breeding-cerna2024.json"],"how":"Table 1, 'Summary of pedigree breeds with at least 10 litters for each breed' -- 19 breeds with >=10 litters each, 853 litters total from 448 breeders (2019), 45 pedigree breeds by queen's breed overall (this table's own rows are the >=10-litter subset). Overall study headline: dystocia requiring veterinary intervention 14.9% (range 0-22.2% by breed), caesarean section required for 10.7% of litters overall.","n":10},"asof":"2026-09-20","source":{"publisher":"Journal of Feline Medicine and Surgery (SAGE)","title":"Cerna P, Pugalendhi SJ, Shaw DJ, Gunn-Moore DA. Feline dystocia and kitten mortality up to 12 weeks in pedigree cats. J Feline Med Surg. 2024;26(12):1098612X241284766.","url":"https://doi.org/10.1177/1098612X241284766","retrieved":"2026-09-20"},"status":"verified","license":"facts-only","caveats":["Study sample n=10 litters.","Small breed sample; treat as imprecise."]},{"id":"breeding-cerna2024-csection-korat","value":0.0,"unit":"percent of litters by caesarean section","subject":"Korat: caesarean-section rate (Cerna et al. 2024)","method":{"type":"verbatim-quote","from":["data/breeding-cerna2024.json"],"how":"Table 1, 'Summary of pedigree breeds with at least 10 litters for each breed' -- 19 breeds with >=10 litters each, 853 litters total from 448 breeders (2019), 45 pedigree breeds by queen's breed overall (this table's own rows are the >=10-litter subset). Overall study headline: dystocia requiring veterinary intervention 14.9% (range 0-22.2% by breed), caesarean section required for 10.7% of litters overall.","n":10},"asof":"2026-09-20","source":{"publisher":"Journal of Feline Medicine and Surgery (SAGE)","title":"Cerna P, Pugalendhi SJ, Shaw DJ, Gunn-Moore DA. Feline dystocia and kitten mortality up to 12 weeks in pedigree cats. J Feline Med Surg. 2024;26(12):1098612X241284766.","url":"https://doi.org/10.1177/1098612X241284766","retrieved":"2026-09-20"},"status":"verified","license":"facts-only","caveats":["Study sample n=10 litters.","Small breed sample; treat as imprecise."]},{"id":"breeding-cerna2024-mortality12wk-korat","value":8.9,"unit":"percent cumulative kitten mortality to 12 weeks","subject":"Korat: cumulative kitten mortality to 12 weeks, stillbirths included (Cerna et al. 2024)","method":{"type":"verbatim-quote","from":["data/breeding-cerna2024.json"],"how":"Table 1, 'Summary of pedigree breeds with at least 10 litters for each breed' -- 19 breeds with >=10 litters each, 853 litters total from 448 breeders (2019), 45 pedigree breeds by queen's breed overall (this table's own rows are the >=10-litter subset). Overall study headline: dystocia requiring veterinary intervention 14.9% (range 0-22.2% by breed), caesarean section required for 10.7% of litters overall.","n":10},"asof":"2026-09-20","source":{"publisher":"Journal of Feline Medicine and Surgery (SAGE)","title":"Cerna P, Pugalendhi SJ, Shaw DJ, Gunn-Moore DA. Feline dystocia and kitten mortality up to 12 weeks in pedigree cats. J Feline Med Surg. 2024;26(12):1098612X241284766.","url":"https://doi.org/10.1177/1098612X241284766","retrieved":"2026-09-20"},"status":"verified","license":"facts-only","caveats":["Study sample n=10 litters.","Small breed sample; treat as imprecise."]},{"id":"breeding-cerna2024-litter-size-maine-coon","value":5.17,"unit":"mean kittens per litter","subject":"Maine Coon: mean litter size (Cerna et al. 2024)","method":{"type":"verbatim-quote","from":["data/breeding-cerna2024.json"],"how":"Table 1, 'Summary of pedigree breeds with at least 10 litters for each breed' -- 19 breeds with >=10 litters each, 853 litters total from 448 breeders (2019), 45 pedigree breeds by queen's breed overall (this table's own rows are the >=10-litter subset). Overall study headline: dystocia requiring veterinary intervention 14.9% (range 0-22.2% by breed), caesarean section required for 10.7% of litters overall.","n":95},"asof":"2026-09-20","source":{"publisher":"Journal of Feline Medicine and Surgery (SAGE)","title":"Cerna P, Pugalendhi SJ, Shaw DJ, Gunn-Moore DA. Feline dystocia and kitten mortality up to 12 weeks in pedigree cats. J Feline Med Surg. 2024;26(12):1098612X241284766.","url":"https://doi.org/10.1177/1098612X241284766","retrieved":"2026-09-20"},"status":"verified","license":"facts-only","caveats":["Study sample n=95 litters."]},{"id":"breeding-cerna2024-csection-maine-coon","value":10.5,"unit":"percent of litters by caesarean section","subject":"Maine Coon: caesarean-section rate (Cerna et al. 2024)","method":{"type":"verbatim-quote","from":["data/breeding-cerna2024.json"],"how":"Table 1, 'Summary of pedigree breeds with at least 10 litters for each breed' -- 19 breeds with >=10 litters each, 853 litters total from 448 breeders (2019), 45 pedigree breeds by queen's breed overall (this table's own rows are the >=10-litter subset). Overall study headline: dystocia requiring veterinary intervention 14.9% (range 0-22.2% by breed), caesarean section required for 10.7% of litters overall.","n":95},"asof":"2026-09-20","source":{"publisher":"Journal of Feline Medicine and Surgery (SAGE)","title":"Cerna P, Pugalendhi SJ, Shaw DJ, Gunn-Moore DA. Feline dystocia and kitten mortality up to 12 weeks in pedigree cats. J Feline Med Surg. 2024;26(12):1098612X241284766.","url":"https://doi.org/10.1177/1098612X241284766","retrieved":"2026-09-20"},"status":"verified","license":"facts-only","caveats":["Study sample n=95 litters."]},{"id":"breeding-cerna2024-mortality12wk-maine-coon","value":13.0,"unit":"percent cumulative kitten mortality to 12 weeks","subject":"Maine Coon: cumulative kitten mortality to 12 weeks, stillbirths included (Cerna et al. 2024)","method":{"type":"verbatim-quote","from":["data/breeding-cerna2024.json"],"how":"Table 1, 'Summary of pedigree breeds with at least 10 litters for each breed' -- 19 breeds with >=10 litters each, 853 litters total from 448 breeders (2019), 45 pedigree breeds by queen's breed overall (this table's own rows are the >=10-litter subset). Overall study headline: dystocia requiring veterinary intervention 14.9% (range 0-22.2% by breed), caesarean section required for 10.7% of litters overall.","n":95},"asof":"2026-09-20","source":{"publisher":"Journal of Feline Medicine and Surgery (SAGE)","title":"Cerna P, Pugalendhi SJ, Shaw DJ, Gunn-Moore DA. Feline dystocia and kitten mortality up to 12 weeks in pedigree cats. J Feline Med Surg. 2024;26(12):1098612X241284766.","url":"https://doi.org/10.1177/1098612X241284766","retrieved":"2026-09-20"},"status":"verified","license":"facts-only","caveats":["Study sample n=95 litters."]},{"id":"breeding-cerna2024-litter-size-neva-masquerade","value":4.62,"unit":"mean kittens per litter","subject":"Neva Masquerade: mean litter size (Cerna et al. 2024)","method":{"type":"verbatim-quote","from":["data/breeding-cerna2024.json"],"how":"Table 1, 'Summary of pedigree breeds with at least 10 litters for each breed' -- 19 breeds with >=10 litters each, 853 litters total from 448 breeders (2019), 45 pedigree breeds by queen's breed overall (this table's own rows are the >=10-litter subset). Overall study headline: dystocia requiring veterinary intervention 14.9% (range 0-22.2% by breed), caesarean section required for 10.7% of litters overall.","n":16},"asof":"2026-09-20","source":{"publisher":"Journal of Feline Medicine and Surgery (SAGE)","title":"Cerna P, Pugalendhi SJ, Shaw DJ, Gunn-Moore DA. Feline dystocia and kitten mortality up to 12 weeks in pedigree cats. J Feline Med Surg. 2024;26(12):1098612X241284766.","url":"https://doi.org/10.1177/1098612X241284766","retrieved":"2026-09-20"},"status":"verified","license":"facts-only","caveats":["Study sample n=16 litters.","Small breed sample; treat as imprecise."]},{"id":"breeding-cerna2024-csection-neva-masquerade","value":0.0,"unit":"percent of litters by caesarean section","subject":"Neva Masquerade: caesarean-section rate (Cerna et al. 2024)","method":{"type":"verbatim-quote","from":["data/breeding-cerna2024.json"],"how":"Table 1, 'Summary of pedigree breeds with at least 10 litters for each breed' -- 19 breeds with >=10 litters each, 853 litters total from 448 breeders (2019), 45 pedigree breeds by queen's breed overall (this table's own rows are the >=10-litter subset). Overall study headline: dystocia requiring veterinary intervention 14.9% (range 0-22.2% by breed), caesarean section required for 10.7% of litters overall.","n":16},"asof":"2026-09-20","source":{"publisher":"Journal of Feline Medicine and Surgery (SAGE)","title":"Cerna P, Pugalendhi SJ, Shaw DJ, Gunn-Moore DA. Feline dystocia and kitten mortality up to 12 weeks in pedigree cats. J Feline Med Surg. 2024;26(12):1098612X241284766.","url":"https://doi.org/10.1177/1098612X241284766","retrieved":"2026-09-20"},"status":"verified","license":"facts-only","caveats":["Study sample n=16 litters.","Small breed sample; treat as imprecise."]},{"id":"breeding-cerna2024-mortality12wk-neva-masquerade","value":10.8,"unit":"percent cumulative kitten mortality to 12 weeks","subject":"Neva Masquerade: cumulative kitten mortality to 12 weeks, stillbirths included (Cerna et al. 2024)","method":{"type":"verbatim-quote","from":["data/breeding-cerna2024.json"],"how":"Table 1, 'Summary of pedigree breeds with at least 10 litters for each breed' -- 19 breeds with >=10 litters each, 853 litters total from 448 breeders (2019), 45 pedigree breeds by queen's breed overall (this table's own rows are the >=10-litter subset). Overall study headline: dystocia requiring veterinary intervention 14.9% (range 0-22.2% by breed), caesarean section required for 10.7% of litters overall.","n":16},"asof":"2026-09-20","source":{"publisher":"Journal of Feline Medicine and Surgery (SAGE)","title":"Cerna P, Pugalendhi SJ, Shaw DJ, Gunn-Moore DA. Feline dystocia and kitten mortality up to 12 weeks in pedigree cats. J Feline Med Surg. 2024;26(12):1098612X241284766.","url":"https://doi.org/10.1177/1098612X241284766","retrieved":"2026-09-20"},"status":"verified","license":"facts-only","caveats":["Study sample n=16 litters.","Small breed sample; treat as imprecise."]},{"id":"breeding-cerna2024-litter-size-norwegian-forest-cat","value":5.05,"unit":"mean kittens per litter","subject":"Norwegian Forest Cat: mean litter size (Cerna et al. 2024)","method":{"type":"verbatim-quote","from":["data/breeding-cerna2024.json"],"how":"Table 1, 'Summary of pedigree breeds with at least 10 litters for each breed' -- 19 breeds with >=10 litters each, 853 litters total from 448 breeders (2019), 45 pedigree breeds by queen's breed overall (this table's own rows are the >=10-litter subset). Overall study headline: dystocia requiring veterinary intervention 14.9% (range 0-22.2% by breed), caesarean section required for 10.7% of litters overall.","n":65},"asof":"2026-09-20","source":{"publisher":"Journal of Feline Medicine and Surgery (SAGE)","title":"Cerna P, Pugalendhi SJ, Shaw DJ, Gunn-Moore DA. Feline dystocia and kitten mortality up to 12 weeks in pedigree cats. J Feline Med Surg. 2024;26(12):1098612X241284766.","url":"https://doi.org/10.1177/1098612X241284766","retrieved":"2026-09-20"},"status":"verified","license":"facts-only","caveats":["Study sample n=65 litters."]},{"id":"breeding-cerna2024-csection-norwegian-forest-cat","value":10.8,"unit":"percent of litters by caesarean section","subject":"Norwegian Forest Cat: caesarean-section rate (Cerna et al. 2024)","method":{"type":"verbatim-quote","from":["data/breeding-cerna2024.json"],"how":"Table 1, 'Summary of pedigree breeds with at least 10 litters for each breed' -- 19 breeds with >=10 litters each, 853 litters total from 448 breeders (2019), 45 pedigree breeds by queen's breed overall (this table's own rows are the >=10-litter subset). Overall study headline: dystocia requiring veterinary intervention 14.9% (range 0-22.2% by breed), caesarean section required for 10.7% of litters overall.","n":65},"asof":"2026-09-20","source":{"publisher":"Journal of Feline Medicine and Surgery (SAGE)","title":"Cerna P, Pugalendhi SJ, Shaw DJ, Gunn-Moore DA. Feline dystocia and kitten mortality up to 12 weeks in pedigree cats. J Feline Med Surg. 2024;26(12):1098612X241284766.","url":"https://doi.org/10.1177/1098612X241284766","retrieved":"2026-09-20"},"status":"verified","license":"facts-only","caveats":["Study sample n=65 litters."]},{"id":"breeding-cerna2024-mortality12wk-norwegian-forest-cat","value":9.5,"unit":"percent cumulative kitten mortality to 12 weeks","subject":"Norwegian Forest Cat: cumulative kitten mortality to 12 weeks, stillbirths included (Cerna et al. 2024)","method":{"type":"verbatim-quote","from":["data/breeding-cerna2024.json"],"how":"Table 1, 'Summary of pedigree breeds with at least 10 litters for each breed' -- 19 breeds with >=10 litters each, 853 litters total from 448 breeders (2019), 45 pedigree breeds by queen's breed overall (this table's own rows are the >=10-litter subset). Overall study headline: dystocia requiring veterinary intervention 14.9% (range 0-22.2% by breed), caesarean section required for 10.7% of litters overall.","n":65},"asof":"2026-09-20","source":{"publisher":"Journal of Feline Medicine and Surgery (SAGE)","title":"Cerna P, Pugalendhi SJ, Shaw DJ, Gunn-Moore DA. Feline dystocia and kitten mortality up to 12 weeks in pedigree cats. J Feline Med Surg. 2024;26(12):1098612X241284766.","url":"https://doi.org/10.1177/1098612X241284766","retrieved":"2026-09-20"},"status":"verified","license":"facts-only","caveats":["Study sample n=65 litters."]},{"id":"breeding-cerna2024-litter-size-ragdoll","value":4.87,"unit":"mean kittens per litter","subject":"Ragdoll: mean litter size (Cerna et al. 2024)","method":{"type":"verbatim-quote","from":["data/breeding-cerna2024.json"],"how":"Table 1, 'Summary of pedigree breeds with at least 10 litters for each breed' -- 19 breeds with >=10 litters each, 853 litters total from 448 breeders (2019), 45 pedigree breeds by queen's breed overall (this table's own rows are the >=10-litter subset). Overall study headline: dystocia requiring veterinary intervention 14.9% (range 0-22.2% by breed), caesarean section required for 10.7% of litters overall.","n":39},"asof":"2026-09-20","source":{"publisher":"Journal of Feline Medicine and Surgery (SAGE)","title":"Cerna P, Pugalendhi SJ, Shaw DJ, Gunn-Moore DA. Feline dystocia and kitten mortality up to 12 weeks in pedigree cats. J Feline Med Surg. 2024;26(12):1098612X241284766.","url":"https://doi.org/10.1177/1098612X241284766","retrieved":"2026-09-20"},"status":"verified","license":"facts-only","caveats":["Study sample n=39 litters."]},{"id":"breeding-cerna2024-csection-ragdoll","value":2.6,"unit":"percent of litters by caesarean section","subject":"Ragdoll: caesarean-section rate (Cerna et al. 2024)","method":{"type":"verbatim-quote","from":["data/breeding-cerna2024.json"],"how":"Table 1, 'Summary of pedigree breeds with at least 10 litters for each breed' -- 19 breeds with >=10 litters each, 853 litters total from 448 breeders (2019), 45 pedigree breeds by queen's breed overall (this table's own rows are the >=10-litter subset). Overall study headline: dystocia requiring veterinary intervention 14.9% (range 0-22.2% by breed), caesarean section required for 10.7% of litters overall.","n":39},"asof":"2026-09-20","source":{"publisher":"Journal of Feline Medicine and Surgery (SAGE)","title":"Cerna P, Pugalendhi SJ, Shaw DJ, Gunn-Moore DA. Feline dystocia and kitten mortality up to 12 weeks in pedigree cats. J Feline Med Surg. 2024;26(12):1098612X241284766.","url":"https://doi.org/10.1177/1098612X241284766","retrieved":"2026-09-20"},"status":"verified","license":"facts-only","caveats":["Study sample n=39 litters."]},{"id":"breeding-cerna2024-mortality12wk-ragdoll","value":7.4,"unit":"percent cumulative kitten mortality to 12 weeks","subject":"Ragdoll: cumulative kitten mortality to 12 weeks, stillbirths included (Cerna et al. 2024)","method":{"type":"verbatim-quote","from":["data/breeding-cerna2024.json"],"how":"Table 1, 'Summary of pedigree breeds with at least 10 litters for each breed' -- 19 breeds with >=10 litters each, 853 litters total from 448 breeders (2019), 45 pedigree breeds by queen's breed overall (this table's own rows are the >=10-litter subset). Overall study headline: dystocia requiring veterinary intervention 14.9% (range 0-22.2% by breed), caesarean section required for 10.7% of litters overall.","n":39},"asof":"2026-09-20","source":{"publisher":"Journal of Feline Medicine and Surgery (SAGE)","title":"Cerna P, Pugalendhi SJ, Shaw DJ, Gunn-Moore DA. Feline dystocia and kitten mortality up to 12 weeks in pedigree cats. J Feline Med Surg. 2024;26(12):1098612X241284766.","url":"https://doi.org/10.1177/1098612X241284766","retrieved":"2026-09-20"},"status":"verified","license":"facts-only","caveats":["Study sample n=39 litters."]},{"id":"breeding-cerna2024-litter-size-russian-blue-nebelung","value":4.1,"unit":"mean kittens per litter","subject":"Russian Blue/Nebelung: mean litter size (Cerna et al. 2024)","method":{"type":"verbatim-quote","from":["data/breeding-cerna2024.json"],"how":"Table 1, 'Summary of pedigree breeds with at least 10 litters for each breed' -- 19 breeds with >=10 litters each, 853 litters total from 448 breeders (2019), 45 pedigree breeds by queen's breed overall (this table's own rows are the >=10-litter subset). Overall study headline: dystocia requiring veterinary intervention 14.9% (range 0-22.2% by breed), caesarean section required for 10.7% of litters overall.","n":20},"asof":"2026-09-20","source":{"publisher":"Journal of Feline Medicine and Surgery (SAGE)","title":"Cerna P, Pugalendhi SJ, Shaw DJ, Gunn-Moore DA. Feline dystocia and kitten mortality up to 12 weeks in pedigree cats. J Feline Med Surg. 2024;26(12):1098612X241284766.","url":"https://doi.org/10.1177/1098612X241284766","retrieved":"2026-09-20"},"status":"verified","license":"facts-only","caveats":["Study sample n=20 litters.","Study breed label 'Russian Blue/Nebelung' pools variants or does not map 1:1 onto a single roster breed (e.g. joint shorthair/longhair or joint-breed labels in the source table)."]},{"id":"breeding-cerna2024-csection-russian-blue-nebelung","value":10.0,"unit":"percent of litters by caesarean section","subject":"Russian Blue/Nebelung: caesarean-section rate (Cerna et al. 2024)","method":{"type":"verbatim-quote","from":["data/breeding-cerna2024.json"],"how":"Table 1, 'Summary of pedigree breeds with at least 10 litters for each breed' -- 19 breeds with >=10 litters each, 853 litters total from 448 breeders (2019), 45 pedigree breeds by queen's breed overall (this table's own rows are the >=10-litter subset). Overall study headline: dystocia requiring veterinary intervention 14.9% (range 0-22.2% by breed), caesarean section required for 10.7% of litters overall.","n":20},"asof":"2026-09-20","source":{"publisher":"Journal of Feline Medicine and Surgery (SAGE)","title":"Cerna P, Pugalendhi SJ, Shaw DJ, Gunn-Moore DA. Feline dystocia and kitten mortality up to 12 weeks in pedigree cats. J Feline Med Surg. 2024;26(12):1098612X241284766.","url":"https://doi.org/10.1177/1098612X241284766","retrieved":"2026-09-20"},"status":"verified","license":"facts-only","caveats":["Study sample n=20 litters.","Study breed label 'Russian Blue/Nebelung' pools variants or does not map 1:1 onto a single roster breed (e.g. joint shorthair/longhair or joint-breed labels in the source table)."]},{"id":"breeding-cerna2024-mortality12wk-russian-blue-nebelung","value":13.4,"unit":"percent cumulative kitten mortality to 12 weeks","subject":"Russian Blue/Nebelung: cumulative kitten mortality to 12 weeks, stillbirths included (Cerna et al. 2024)","method":{"type":"verbatim-quote","from":["data/breeding-cerna2024.json"],"how":"Table 1, 'Summary of pedigree breeds with at least 10 litters for each breed' -- 19 breeds with >=10 litters each, 853 litters total from 448 breeders (2019), 45 pedigree breeds by queen's breed overall (this table's own rows are the >=10-litter subset). Overall study headline: dystocia requiring veterinary intervention 14.9% (range 0-22.2% by breed), caesarean section required for 10.7% of litters overall.","n":20},"asof":"2026-09-20","source":{"publisher":"Journal of Feline Medicine and Surgery (SAGE)","title":"Cerna P, Pugalendhi SJ, Shaw DJ, Gunn-Moore DA. Feline dystocia and kitten mortality up to 12 weeks in pedigree cats. J Feline Med Surg. 2024;26(12):1098612X241284766.","url":"https://doi.org/10.1177/1098612X241284766","retrieved":"2026-09-20"},"status":"verified","license":"facts-only","caveats":["Study sample n=20 litters.","Study breed label 'Russian Blue/Nebelung' pools variants or does not map 1:1 onto a single roster breed (e.g. joint shorthair/longhair or joint-breed labels in the source table)."]},{"id":"breeding-cerna2024-litter-size-sacred-birman","value":3.59,"unit":"mean kittens per litter","subject":"Sacred Birman: mean litter size (Cerna et al. 2024)","method":{"type":"verbatim-quote","from":["data/breeding-cerna2024.json"],"how":"Table 1, 'Summary of pedigree breeds with at least 10 litters for each breed' -- 19 breeds with >=10 litters each, 853 litters total from 448 breeders (2019), 45 pedigree breeds by queen's breed overall (this table's own rows are the >=10-litter subset). Overall study headline: dystocia requiring veterinary intervention 14.9% (range 0-22.2% by breed), caesarean section required for 10.7% of litters overall.","n":44},"asof":"2026-09-20","source":{"publisher":"Journal of Feline Medicine and Surgery (SAGE)","title":"Cerna P, Pugalendhi SJ, Shaw DJ, Gunn-Moore DA. Feline dystocia and kitten mortality up to 12 weeks in pedigree cats. J Feline Med Surg. 2024;26(12):1098612X241284766.","url":"https://doi.org/10.1177/1098612X241284766","retrieved":"2026-09-20"},"status":"verified","license":"facts-only","caveats":["Study sample n=44 litters.","Study breed label 'Sacred Birman' pools variants or does not map 1:1 onto a single roster breed (e.g. joint shorthair/longhair or joint-breed labels in the source table)."]},{"id":"breeding-cerna2024-csection-sacred-birman","value":9.1,"unit":"percent of litters by caesarean section","subject":"Sacred Birman: caesarean-section rate (Cerna et al. 2024)","method":{"type":"verbatim-quote","from":["data/breeding-cerna2024.json"],"how":"Table 1, 'Summary of pedigree breeds with at least 10 litters for each breed' -- 19 breeds with >=10 litters each, 853 litters total from 448 breeders (2019), 45 pedigree breeds by queen's breed overall (this table's own rows are the >=10-litter subset). Overall study headline: dystocia requiring veterinary intervention 14.9% (range 0-22.2% by breed), caesarean section required for 10.7% of litters overall.","n":44},"asof":"2026-09-20","source":{"publisher":"Journal of Feline Medicine and Surgery (SAGE)","title":"Cerna P, Pugalendhi SJ, Shaw DJ, Gunn-Moore DA. Feline dystocia and kitten mortality up to 12 weeks in pedigree cats. J Feline Med Surg. 2024;26(12):1098612X241284766.","url":"https://doi.org/10.1177/1098612X241284766","retrieved":"2026-09-20"},"status":"verified","license":"facts-only","caveats":["Study sample n=44 litters.","Study breed label 'Sacred Birman' pools variants or does not map 1:1 onto a single roster breed (e.g. joint shorthair/longhair or joint-breed labels in the source table)."]},{"id":"breeding-cerna2024-mortality12wk-sacred-birman","value":19.0,"unit":"percent cumulative kitten mortality to 12 weeks","subject":"Sacred Birman: cumulative kitten mortality to 12 weeks, stillbirths included (Cerna et al. 2024)","method":{"type":"verbatim-quote","from":["data/breeding-cerna2024.json"],"how":"Table 1, 'Summary of pedigree breeds with at least 10 litters for each breed' -- 19 breeds with >=10 litters each, 853 litters total from 448 breeders (2019), 45 pedigree breeds by queen's breed overall (this table's own rows are the >=10-litter subset). Overall study headline: dystocia requiring veterinary intervention 14.9% (range 0-22.2% by breed), caesarean section required for 10.7% of litters overall.","n":44},"asof":"2026-09-20","source":{"publisher":"Journal of Feline Medicine and Surgery (SAGE)","title":"Cerna P, Pugalendhi SJ, Shaw DJ, Gunn-Moore DA. Feline dystocia and kitten mortality up to 12 weeks in pedigree cats. J Feline Med Surg. 2024;26(12):1098612X241284766.","url":"https://doi.org/10.1177/1098612X241284766","retrieved":"2026-09-20"},"status":"verified","license":"facts-only","caveats":["Study sample n=44 litters.","Study breed label 'Sacred Birman' pools variants or does not map 1:1 onto a single roster breed (e.g. joint shorthair/longhair or joint-breed labels in the source table)."]},{"id":"breeding-cerna2024-litter-size-selkirk-rex-short-long","value":4.06,"unit":"mean kittens per litter","subject":"Selkirk Rex (Short/Long): mean litter size (Cerna et al. 2024)","method":{"type":"verbatim-quote","from":["data/breeding-cerna2024.json"],"how":"Table 1, 'Summary of pedigree breeds with at least 10 litters for each breed' -- 19 breeds with >=10 litters each, 853 litters total from 448 breeders (2019), 45 pedigree breeds by queen's breed overall (this table's own rows are the >=10-litter subset). Overall study headline: dystocia requiring veterinary intervention 14.9% (range 0-22.2% by breed), caesarean section required for 10.7% of litters overall.","n":18},"asof":"2026-09-20","source":{"publisher":"Journal of Feline Medicine and Surgery (SAGE)","title":"Cerna P, Pugalendhi SJ, Shaw DJ, Gunn-Moore DA. Feline dystocia and kitten mortality up to 12 weeks in pedigree cats. J Feline Med Surg. 2024;26(12):1098612X241284766.","url":"https://doi.org/10.1177/1098612X241284766","retrieved":"2026-09-20"},"status":"verified","license":"facts-only","caveats":["Study sample n=18 litters.","Small breed sample; treat as imprecise.","Study breed label 'Selkirk Rex (Short/Long)' pools variants or does not map 1:1 onto a single roster breed (e.g. joint shorthair/longhair or joint-breed labels in the source table)."]},{"id":"breeding-cerna2024-csection-selkirk-rex-short-long","value":11.1,"unit":"percent of litters by caesarean section","subject":"Selkirk Rex (Short/Long): caesarean-section rate (Cerna et al. 2024)","method":{"type":"verbatim-quote","from":["data/breeding-cerna2024.json"],"how":"Table 1, 'Summary of pedigree breeds with at least 10 litters for each breed' -- 19 breeds with >=10 litters each, 853 litters total from 448 breeders (2019), 45 pedigree breeds by queen's breed overall (this table's own rows are the >=10-litter subset). Overall study headline: dystocia requiring veterinary intervention 14.9% (range 0-22.2% by breed), caesarean section required for 10.7% of litters overall.","n":18},"asof":"2026-09-20","source":{"publisher":"Journal of Feline Medicine and Surgery (SAGE)","title":"Cerna P, Pugalendhi SJ, Shaw DJ, Gunn-Moore DA. Feline dystocia and kitten mortality up to 12 weeks in pedigree cats. J Feline Med Surg. 2024;26(12):1098612X241284766.","url":"https://doi.org/10.1177/1098612X241284766","retrieved":"2026-09-20"},"status":"verified","license":"facts-only","caveats":["Study sample n=18 litters.","Small breed sample; treat as imprecise.","Study breed label 'Selkirk Rex (Short/Long)' pools variants or does not map 1:1 onto a single roster breed (e.g. joint shorthair/longhair or joint-breed labels in the source table)."]},{"id":"breeding-cerna2024-mortality12wk-selkirk-rex-short-long","value":15.1,"unit":"percent cumulative kitten mortality to 12 weeks","subject":"Selkirk Rex (Short/Long): cumulative kitten mortality to 12 weeks, stillbirths included (Cerna et al. 2024)","method":{"type":"verbatim-quote","from":["data/breeding-cerna2024.json"],"how":"Table 1, 'Summary of pedigree breeds with at least 10 litters for each breed' -- 19 breeds with >=10 litters each, 853 litters total from 448 breeders (2019), 45 pedigree breeds by queen's breed overall (this table's own rows are the >=10-litter subset). Overall study headline: dystocia requiring veterinary intervention 14.9% (range 0-22.2% by breed), caesarean section required for 10.7% of litters overall.","n":18},"asof":"2026-09-20","source":{"publisher":"Journal of Feline Medicine and Surgery (SAGE)","title":"Cerna P, Pugalendhi SJ, Shaw DJ, Gunn-Moore DA. Feline dystocia and kitten mortality up to 12 weeks in pedigree cats. J Feline Med Surg. 2024;26(12):1098612X241284766.","url":"https://doi.org/10.1177/1098612X241284766","retrieved":"2026-09-20"},"status":"verified","license":"facts-only","caveats":["Study sample n=18 litters.","Small breed sample; treat as imprecise.","Study breed label 'Selkirk Rex (Short/Long)' pools variants or does not map 1:1 onto a single roster breed (e.g. joint shorthair/longhair or joint-breed labels in the source table)."]},{"id":"breeding-cerna2024-litter-size-siberian","value":4.5,"unit":"mean kittens per litter","subject":"Siberian: mean litter size (Cerna et al. 2024)","method":{"type":"verbatim-quote","from":["data/breeding-cerna2024.json"],"how":"Table 1, 'Summary of pedigree breeds with at least 10 litters for each breed' -- 19 breeds with >=10 litters each, 853 litters total from 448 breeders (2019), 45 pedigree breeds by queen's breed overall (this table's own rows are the >=10-litter subset). Overall study headline: dystocia requiring veterinary intervention 14.9% (range 0-22.2% by breed), caesarean section required for 10.7% of litters overall.","n":26},"asof":"2026-09-20","source":{"publisher":"Journal of Feline Medicine and Surgery (SAGE)","title":"Cerna P, Pugalendhi SJ, Shaw DJ, Gunn-Moore DA. Feline dystocia and kitten mortality up to 12 weeks in pedigree cats. J Feline Med Surg. 2024;26(12):1098612X241284766.","url":"https://doi.org/10.1177/1098612X241284766","retrieved":"2026-09-20"},"status":"verified","license":"facts-only","caveats":["Study sample n=26 litters."]},{"id":"breeding-cerna2024-csection-siberian","value":11.5,"unit":"percent of litters by caesarean section","subject":"Siberian: caesarean-section rate (Cerna et al. 2024)","method":{"type":"verbatim-quote","from":["data/breeding-cerna2024.json"],"how":"Table 1, 'Summary of pedigree breeds with at least 10 litters for each breed' -- 19 breeds with >=10 litters each, 853 litters total from 448 breeders (2019), 45 pedigree breeds by queen's breed overall (this table's own rows are the >=10-litter subset). Overall study headline: dystocia requiring veterinary intervention 14.9% (range 0-22.2% by breed), caesarean section required for 10.7% of litters overall.","n":26},"asof":"2026-09-20","source":{"publisher":"Journal of Feline Medicine and Surgery (SAGE)","title":"Cerna P, Pugalendhi SJ, Shaw DJ, Gunn-Moore DA. Feline dystocia and kitten mortality up to 12 weeks in pedigree cats. J Feline Med Surg. 2024;26(12):1098612X241284766.","url":"https://doi.org/10.1177/1098612X241284766","retrieved":"2026-09-20"},"status":"verified","license":"facts-only","caveats":["Study sample n=26 litters."]},{"id":"breeding-cerna2024-mortality12wk-siberian","value":7.7,"unit":"percent cumulative kitten mortality to 12 weeks","subject":"Siberian: cumulative kitten mortality to 12 weeks, stillbirths included (Cerna et al. 2024)","method":{"type":"verbatim-quote","from":["data/breeding-cerna2024.json"],"how":"Table 1, 'Summary of pedigree breeds with at least 10 litters for each breed' -- 19 breeds with >=10 litters each, 853 litters total from 448 breeders (2019), 45 pedigree breeds by queen's breed overall (this table's own rows are the >=10-litter subset). Overall study headline: dystocia requiring veterinary intervention 14.9% (range 0-22.2% by breed), caesarean section required for 10.7% of litters overall.","n":26},"asof":"2026-09-20","source":{"publisher":"Journal of Feline Medicine and Surgery (SAGE)","title":"Cerna P, Pugalendhi SJ, Shaw DJ, Gunn-Moore DA. Feline dystocia and kitten mortality up to 12 weeks in pedigree cats. J Feline Med Surg. 2024;26(12):1098612X241284766.","url":"https://doi.org/10.1177/1098612X241284766","retrieved":"2026-09-20"},"status":"verified","license":"facts-only","caveats":["Study sample n=26 litters."]},{"id":"breeding-cerna2024-litter-size-sphynx","value":4.57,"unit":"mean kittens per litter","subject":"Sphynx: mean litter size (Cerna et al. 2024)","method":{"type":"verbatim-quote","from":["data/breeding-cerna2024.json"],"how":"Table 1, 'Summary of pedigree breeds with at least 10 litters for each breed' -- 19 breeds with >=10 litters each, 853 litters total from 448 breeders (2019), 45 pedigree breeds by queen's breed overall (this table's own rows are the >=10-litter subset). Overall study headline: dystocia requiring veterinary intervention 14.9% (range 0-22.2% by breed), caesarean section required for 10.7% of litters overall.","n":14},"asof":"2026-09-20","source":{"publisher":"Journal of Feline Medicine and Surgery (SAGE)","title":"Cerna P, Pugalendhi SJ, Shaw DJ, Gunn-Moore DA. Feline dystocia and kitten mortality up to 12 weeks in pedigree cats. J Feline Med Surg. 2024;26(12):1098612X241284766.","url":"https://doi.org/10.1177/1098612X241284766","retrieved":"2026-09-20"},"status":"verified","license":"facts-only","caveats":["Study sample n=14 litters.","Small breed sample; treat as imprecise."]},{"id":"breeding-cerna2024-csection-sphynx","value":14.3,"unit":"percent of litters by caesarean section","subject":"Sphynx: caesarean-section rate (Cerna et al. 2024)","method":{"type":"verbatim-quote","from":["data/breeding-cerna2024.json"],"how":"Table 1, 'Summary of pedigree breeds with at least 10 litters for each breed' -- 19 breeds with >=10 litters each, 853 litters total from 448 breeders (2019), 45 pedigree breeds by queen's breed overall (this table's own rows are the >=10-litter subset). Overall study headline: dystocia requiring veterinary intervention 14.9% (range 0-22.2% by breed), caesarean section required for 10.7% of litters overall.","n":14},"asof":"2026-09-20","source":{"publisher":"Journal of Feline Medicine and Surgery (SAGE)","title":"Cerna P, Pugalendhi SJ, Shaw DJ, Gunn-Moore DA. Feline dystocia and kitten mortality up to 12 weeks in pedigree cats. J Feline Med Surg. 2024;26(12):1098612X241284766.","url":"https://doi.org/10.1177/1098612X241284766","retrieved":"2026-09-20"},"status":"verified","license":"facts-only","caveats":["Study sample n=14 litters.","Small breed sample; treat as imprecise."]},{"id":"breeding-cerna2024-mortality12wk-sphynx","value":21.9,"unit":"percent cumulative kitten mortality to 12 weeks","subject":"Sphynx: cumulative kitten mortality to 12 weeks, stillbirths included (Cerna et al. 2024)","method":{"type":"verbatim-quote","from":["data/breeding-cerna2024.json"],"how":"Table 1, 'Summary of pedigree breeds with at least 10 litters for each breed' -- 19 breeds with >=10 litters each, 853 litters total from 448 breeders (2019), 45 pedigree breeds by queen's breed overall (this table's own rows are the >=10-litter subset). Overall study headline: dystocia requiring veterinary intervention 14.9% (range 0-22.2% by breed), caesarean section required for 10.7% of litters overall.","n":14},"asof":"2026-09-20","source":{"publisher":"Journal of Feline Medicine and Surgery (SAGE)","title":"Cerna P, Pugalendhi SJ, Shaw DJ, Gunn-Moore DA. Feline dystocia and kitten mortality up to 12 weeks in pedigree cats. J Feline Med Surg. 2024;26(12):1098612X241284766.","url":"https://doi.org/10.1177/1098612X241284766","retrieved":"2026-09-20"},"status":"verified","license":"facts-only","caveats":["Study sample n=14 litters.","Small breed sample; treat as imprecise."]},{"id":"headline-highest-kitten-mortality-breed-cerna2024","value":23.4,"unit":"percent cumulative kitten mortality to 12 weeks","subject":"Highest per-breed cumulative kitten mortality to 12 weeks: Bengal (Cerna et al. 2024)","asof":"2026-09-20","source":{"publisher":"Journal of Feline Medicine and Surgery (SAGE)","title":"Cerna P, Pugalendhi SJ, Shaw DJ, Gunn-Moore DA. Feline dystocia and kitten mortality up to 12 weeks in pedigree cats. J Feline Med Surg. 2024;26(12):1098612X241284766.","url":"https://doi.org/10.1177/1098612X241284766","retrieved":"2026-09-20"},"method":{"type":"computed","from":["data/breeding-cerna2024.json"],"how":"max(mean_kitten_mortality_percent) over Table 1's >=10-litter breed rows.","n":19},"status":"verified","license":"facts-only","caveats":["Study sample n=19 litters."]},{"id":"headline-popularity-current-number-one-years","value":2,"unit":"years at CFA rank #1 (2021-2026)","subject":"Maine Coon Cat: years ranked #1 in CFA's annual most-popular-breeds release, 2021-2026 (5 years fetchable)","asof":"2026-09-07","source":{"publisher":"Cat Fanciers' Association (CFA)","title":"Most Popular Breeds for 2026","url":"https://cfa.org/cat-talk/most-popular-breeds-for-2026/","retrieved":"2026-09-07"},"method":{"type":"computed","from":["data/cfa-popularity-by-year.json"],"how":"Count of fetched years in which Maine Coon Cat held CFA rank #1."},"status":"verified","license":"facts-only","caveats":["Only 5 years of this release were fetchable (CFA does not keep a stable per-year archive) -- see data/cfa-popularity-by-year.json's own notes for the gaps."]},{"id":"headline-popularity-most-years-at-1","value":3,"unit":"years at CFA rank #1 (2021-2026)","subject":"Ragdoll: most years ranked #1 across the fetched span","asof":"2026-09-07","source":{"publisher":"Cat Fanciers' Association (CFA)","title":"Most Popular Breeds for 2026","url":"https://cfa.org/cat-talk/most-popular-breeds-for-2026/","retrieved":"2026-09-07"},"method":{"type":"computed","from":["data/cfa-popularity-by-year.json"],"how":"max(years at rank #1) across all breeds in the fetched years."},"status":"verified","license":"facts-only","caveats":["Only 5 years of this release were fetchable -- see data/cfa-popularity-by-year.json's own notes for the gaps."]},{"id":"headline-popularity-biggest-climber","value":2,"unit":"rank positions gained","subject":"Russian Blue: biggest popularity climb fetchable, rank #12 (2023) to #10 (2026)","asof":"2026-09-07","source":{"publisher":"Cat Fanciers' Association (CFA)","title":"Most Popular Breeds for 2026","url":"https://cfa.org/cat-talk/most-popular-breeds-for-2026/","retrieved":"2026-09-07"},"method":{"type":"computed","from":["data/cfa-popularity-by-year.json"],"how":"Largest (earliest_rank - latest_rank) among breeds ranked in at least two fetched years."},"status":"verified","license":"facts-only","caveats":["Comparison is between this breed's earliest and latest *fetched* year, not necessarily consecutive years -- see data/cfa-popularity-by-year.json's own notes for the gaps."]},{"id":"headline-oldest-recognised-cfa-breed","value":1906,"unit":"year (CFA recognition)","subject":"Siamese: oldest CFA-recognised breed year among the 29 breed pages with a dated year","method":{"type":"computed","from":["data/cfa-recognition-years.json"],"how":"min(recognition_year) across dated CFA breed pages."},"asof":"2026-09-20","source":{"publisher":"Cat Fanciers' Association (CFA)","title":"CFA individual breed pages (cfa.org/<breed>/)","url":"https://cfa.org/breeds/","retrieved":"2026-09-20"},"status":"verified","license":"facts-only","caveats":["Only 29 of 45 fetched CFA breed pages stated a recognition year in a matched phrase -- see corpus/recognition-timeline.json's undated_breeds for the rest, excluded rather than guessed."]},{"id":"headline-newest-recognised-cfa-breed","value":2025,"unit":"year (CFA recognition)","subject":"Toybob: newest CFA-recognised breed year among the 29 breed pages with a dated year","method":{"type":"computed","from":["data/cfa-recognition-years.json"],"how":"max(recognition_year) across dated CFA breed pages."},"asof":"2026-09-20","source":{"publisher":"Cat Fanciers' Association (CFA)","title":"CFA individual breed pages (cfa.org/<breed>/)","url":"https://cfa.org/breeds/","retrieved":"2026-09-20"},"status":"verified","license":"facts-only","caveats":["Only 29 of 45 fetched CFA breed pages stated a recognition year in a matched phrase -- see corpus/recognition-timeline.json's undated_breeds for the rest, excluded rather than guessed."]},{"id":"headline-population-change-uk-owned-cats","value":-4.5,"unit":"percent change","subject":"UK owned-cat population: 2016-2025 change (11,000,000 to 10,500,000)","asof":"2026-09-20","source":{"publisher":"PDSA (People's Dispensary for Sick Animals)","title":"PDSA Animal Wellbeing (PAW) Mini Report 2025","url":"https://www.pdsa.org.uk/media/15783/pdsa-paw-mini-report-2025.pdf","retrieved":"2026-09-20"},"method":{"type":"computed","from":["data/population-by-year.json"],"how":"(10,500,000 - 11,000,000) / 11,000,000 between the fetched 2016 and 2025 editions."},"status":"verified","license":"facts-only","caveats":["PDSA Animal Wellbeing (PAW) Report, YouGov survey-based national estimate, published annually since 2011; three editions fetched (2016, 2020, 2025) from PDSA's own public past-reports archive."]},{"id":"headline-population-change-us-shelter-cat-intake","value":-9.1,"unit":"percent change","subject":"US shelter cat intake: 2023-2025 change (3,300,000 to 3,000,000)","asof":"2026-09-20","source":{"publisher":"Shelter Animals Count","title":"Shelter Animals Count: 2025 Annual Report","url":"https://www.shelteranimalscount.org/2025-report","retrieved":"2026-09-20"},"method":{"type":"computed","from":["data/population-by-year.json"],"how":"(3,000,000 - 3,300,000) / 3,300,000 between the fetched 2023 and 2025 editions."},"status":"verified","license":"facts-only","caveats":["Annual estimated cats entering US shelters and rescues (a different denominator from owned-cat population above -- shelter flow, not a standing population), from Shelter Animals Count's own annual report pages/PDF."]}]