ArticleEquine veterinary journal2026
Novel risk factors associated with fatal musculoskeletal injury in Thoroughbreds in North American racing (2009-2023).
Article in Equine veterinary journal, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.
What it found
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The trial behind it
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Who cites it
4 citing papers in PubMed.
- Defining the Impact of Genetics on Equine Performance and Development of Orthopaedic Disease.Animals : an open access journal from MDPI · 2026Review
- Measuring Chuckwagon Racehorse Movement Asymmetry Before and After Racing Using Wearable GNSS-IMUs: A Preliminary Study.Animals : an open access journal from MDPI · 2026Article
- Spatial Variation in Turf Surface Properties of Polo Pitches: A Case Study of Different Handicaps of Argentina.Animals : an open access journal from MDPI · 2026Article
- Novel risk factors associated with fatal musculoskeletal injury in Thoroughbreds in North American racing (2009-2023).Equine veterinary journal · 2026Article
Corrections and comments
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Authors and funding
2 authors.
Funding
Abstract
backgroundThe Equine Injury Database (EID) is a census-level record of Thoroughbred racing in North America, currently recording 95.6% of all race starts in 2023, along with partial training and veterinary histories of each horse.
objectivesTo identify horse-, race- and track-level risk factors associated with race-related fatal musculoskeletal injury (MSI) of Thoroughbred racehorses in North America. STUDY
designRetrospective cohort study.
methodsThe study cohort included all race starts made by horses born after 31 December 2006, at tracks that fully report to the EID and consisted of 3,851,659 race starts made by 250,840 Thoroughbred racehorses (median [IQR] starts per horse 11 [5-22]) at 115 racetracks in the USA and Canada between 2009 and 2023, inclusive. Ninety-seven potential risk factors were investigated using univariable and multivariable logistic regression modelling.
resultsExactly 5733 fatal MSIs were recorded, an incidence of 1.49 fatal MSIs per 1000 starts. Twenty risk factors had statistically significant associations with increased or decreased odds of fatal MSI. Previously unidentified risk factors included claiming race-related variables and void claim rules (VCR). Horses racing as claimers were at increased odds compared with those who were not (odds ratio 1.31, 95% confidence interval 1.19-1.45, p < 0.001 for the lowest claim prices). Starts in races with the strictest VCR were at reduced odds compared with starts in races with no VCR (OR 0.76 [0.67-0.85], p < 0.001). MAIN LIMITATIONS: Availability of new data sources increased substantially during the 15-year time period of the study, meaning some new risk factors are limited in scope compared with others.
conclusionsThoughtful integration of new data sources with race-level data can lead to new insights into risk factors for deleterious outcomes affecting racehorses. Results can inform ongoing efforts to mitigate the risk of fatal MSI, through direct regulatory intervention and through building a risk profile based on individual history and track-level factors.
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