{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,3,8]],"date-time":"2026-03-08T22:22:10Z","timestamp":1773008530026,"version":"3.50.1"},"reference-count":45,"publisher":"Wiley","issue":"5","license":[{"start":{"date-parts":[[2015,2,27]],"date-time":"2015-02-27T00:00:00Z","timestamp":1424995200000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["J of Small Animal Practice"],"published-print":{"date-parts":[[2015,5]]},"abstract":"<jats:sec><jats:title>OBJECTIVES<\/jats:title><jats:p>To assess correlation between Ki67 index and mitotic index and determine which more accurately predicts survival in canine mast cell tumours.<\/jats:p><\/jats:sec><jats:sec><jats:title>METHODS<\/jats:title><jats:p>Retrospective analysis of cases from three<jats:styled-content style=\"fixed-case\">UK<\/jats:styled-content>referral hospitals. Correlation between Ki67 index and mitotic index was assessed and survival analysis performed.<\/jats:p><\/jats:sec><jats:sec><jats:title>RESULTS<\/jats:title><jats:p>A total of 162 dogs were included: 57 dogs died with 37 due to mast cell tumour. Correlation between Ki67 index and mitotic index was moderate, while the agreement was poor. A high Ki67 index was considered sensitive (86\u2009\u00b7\u20095%) at predicting mast cell tumour\u2010related death, but poorly specific (57\u2009\u00b7\u20099%). Mitotic index(&gt;5) was poorly sensitive (32\u2009\u00b7\u20094%), but highly specific (96%). A mitotic index of<jats:bold>\u00ea<\/jats:bold>2 had a 75\u2009\u00b7\u20097% sensitivity and an 80\u2009\u00b7\u20090% specificity. Ki67 index showed a statistically significant survival difference within the mitotic index &lt;2 (P\u2009=\u20090\u2009\u00b7\u2009009) group. Ki67 index did not predict survival rate in tumours with mitotic index of<jats:bold>\u00ea<\/jats:bold>2.<\/jats:p><\/jats:sec><jats:sec><jats:title>CLINICAL RELEVANCE<\/jats:title><jats:p>Correlation between Ki67 and mitotic index is moderate. High mitotic index accurately predicted death, but many dogs with low mitotic index also died. Low Ki67 accurately predicted survival, but high Ki67 should not be considered a poor prognostic indicator. A three\u2010tier mitotic index assessment may more accurately predict death due to mast cell tumour.<\/jats:p><\/jats:sec>","DOI":"10.1111\/jsap.12320","type":"journal-article","created":{"date-parts":[[2015,2,27]],"date-time":"2015-02-27T11:55:53Z","timestamp":1425038153000},"page":"312-319","source":"Crossref","is-referenced-by-count":36,"title":["Comparison between Ki\u201067 index and mitotic index for predicting outcome in canine mast cell tumours"],"prefix":"10.1111","volume":"56","author":[{"given":"S.","family":"van Lelyveld","sequence":"first","affiliation":[{"name":"Dovecote Veterinary Hospital 5 Delven Lane, Derby Castle Donington Derby DE74 2LJ"},{"name":"Davies Veterinary Specialists, Manor Farm Business Park Higham Gobion, Hitchin Hertfordshire SG5 3HR"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"J.","family":"Warland","sequence":"additional","affiliation":[{"name":"Department of Veterinary Medicine University of Cambridge Cambridge CB3 OES"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"R.","family":"Miller","sequence":"additional","affiliation":[{"name":"Dick White Referrals, Station Farm Six Mile Bottom Cambridgeshire CB8 0UH"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"H.","family":"Maw","sequence":"additional","affiliation":[{"name":"Department of Veterinary Medicine University of Cambridge Cambridge CB3 OES"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"R.","family":"Foale","sequence":"additional","affiliation":[{"name":"Dick White Referrals, Station Farm Six Mile Bottom Cambridgeshire CB8 0UH"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"M.","family":"Goodfellow","sequence":"additional","affiliation":[{"name":"Davies Veterinary Specialists, Manor Farm Business Park Higham Gobion, Hitchin Hertfordshire SG5 3HR"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"J.","family":"Dobson","sequence":"additional","affiliation":[{"name":"Department of Veterinary Medicine University of Cambridge Cambridge CB3 OES"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"311","published-online":{"date-parts":[[2015,2,27]]},"reference":[{"key":"e_1_2_5_2_1","doi-asserted-by":"crossref","first-page":"1629","DOI":"10.2460\/javma.1999.215.11.1629","article-title":"Immunohistochemical detection of proliferating cell nuclear antigen and Ki\u201067 in mast cell tumors from dogs","volume":"215","author":"Abadie J. 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