Factors Associated with Mortality in Ontario Standardbred Racing: 2003-2015.

ABSTRACT: Factors associated with mortality in standardbred racehorses were assessed through a retrospective annualized cohort study of all-cause mortality from 2003-2015 (n = 978) (identified in the Ontario Racehorse Death Registry). Race and qualifying data for official work-events were also gathered (1,778,330 work-events, 125,200 horse years). Multivariable logistic regression analysis revealed sex, age, and indices of workload and intensity and their interactions to be strongly associated with mortality. Track class, race versus qualifying performance, and work-event outcome (finish position, scratched, or failed to finish) also influenced mortality odds, which increased as performance slowed. Intense competition at higher performance levels and qualifying races at lower levels carried particul

SUBMITTER: Physick-Sheard P 

PROVIDER: S-EPMC8066029 | biostudies-literature | 2021 Apr

REPOSITORIES: biostudies-literature