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A cohort study design. Dogs diagnosed with aural haematoma during 2016 were identified from the VetCompass database. Univariable and multivariable logistic regression modelling were used for risk factor analysis. There were 2,249\/905,554 dogs diagnosed with aural haematoma during 2016. The estimated one-year incidence risk for aural haematoma was 0.25% (95% confidence interval 0.24\u20130.26). After accounting for confounding factors, 14 breeds showed increased odds and 20 breeds showed reduced odds of aural haematoma compared with crossbred dogs. Breeds with the highest odds included Bull Terrier (OR 7.42, 95% confidence interval 4.39\u201312.54), Saint Bernard (OR 7.28, 95% confidence interval 3.58\u201314.81) and French Bulldog (OR 6.95, 95% confidence interval 5.55\u20138.70). Increasing age, increasing bodyweight and breeds with V-shaped drop and semi-erect ear carriage also showed increased odds of aural haematoma. Associations between ear carriage within breeds and the risk of aural haematoma suggest that trauma along the line of cartilage folding within V-shaped and semi-erect ears may trigger aural haematoma. New knowledge of key breed predispositions will contribute to improved breed health control strategies.<\/jats:p>","DOI":"10.1038\/s41598-021-00352-0","type":"journal-article","created":{"date-parts":[[2021,11,9]],"date-time":"2021-11-09T06:02:38Z","timestamp":1636437758000},"update-policy":"https:\/\/doi.org\/10.1007\/springer_crossmark_policy","source":"Crossref","is-referenced-by-count":15,"title":["Reporting the epidemiology of aural haematoma in dogs and proposing a novel aetiopathogenetic pathway"],"prefix":"10.1038","volume":"11","author":[{"given":"Dan G.","family":"O\u2019Neill","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Yan Hui","family":"Lee","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Dave C.","family":"Brodbelt","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"David B.","family":"Church","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Camilla","family":"Pegram","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Zo\u00eb","family":"Halfacree","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"297","published-online":{"date-parts":[[2021,11,9]]},"reference":[{"key":"352_CR1","first-page":"873","volume":"185","author":"R Dubielzig","year":"1984","unstructured":"Dubielzig, R., Wilson, J. & Seireg, A. 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