A case-control study was conducted at the Texas Veterinary Medical Center between January 1, 1986 and December 31, 1991. Logistic regression was used to assess age, breed, sex, and seasonality as risk factors for equine laminitis. There were 70 acute cases, 183 chronic cases, and 779 controls. No statistical association was found between age, breed, sex, or seasonality and the diagnosis of acute laminitis. For chronic cases, the estimated odds ratio was statistically significant for age (OR = 1.05, 95% CI (1.02,1.08)) and for the diagnosis of laminitis in the third quarter of the year (OR = 2.57, 95% CI (1.55,4.25)) relative to the first quarter. There was no statistical association between breed or sex and chronic laminitis.
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