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Profiling the careers of Thoroughbred horses racing in Hong Kong between 2000 and 2010.
Abstract: Research in Thoroughbred racehorses is often specific to horses from a given racing population or region. In order to investigate trends in racehorse careers across populations accurately, population-specific benchmarks for performance outcomes must be established. Objective: To provide summary statistics for performance outcomes for Thoroughbreds racing in Hong Kong between 2000 and 2010 and to document and provide evidence on the current differences in racing careers across sexes and regions of origin for horses racing in Hong Kong. Methods: Performance data on the population of Thoroughbreds racing in Hong Kong between 3 September 2000 and 12 March 2011 (n = 4950) were acquired and used to describe and compare the careers of Thoroughbred racehorses in Hong Kong. Methods: Career length, number of career starts and number of spells from racing per year were evaluated. Kaplan-Meier survival curves, stratified by sex, age group, country of origin and region of origin were produced for career length. A Cox's proportional hazards model was fitted to assess factors influencing the risk of retirement from racing in Hong Kong. Results: Log-rank tests for equality of career length survivor functions showed significant differences (P<0.001) across sexes, age groups, countries of origin and regions of origin. An increased age at first start in Hong Kong tended to increase the hazard rate for retirement from racing in Hong Kong, whereas greater earnings per race and originating from Europe tended to reduce the hazard rate for racing retirement. Conclusions: Differences in career outcomes within a racing population appear to be influenced partly by the region from which a horse originates, with specific effects on each performance outcome also varying between regions. Future research should take into account these potential differences when comparing results across populations.
© 2013 EVJ Ltd.
Publication Date: 2013-05-15 PubMed ID: 23662779DOI: 10.1111/evj.12078Google Scholar: Lookup The Equine Research Bank provides access to a large database of publicly available scientific literature. Inclusion in the Research Bank does not imply endorsement of study methods or findings by Mad Barn.
- Journal Article
- Research Support
- Non-U.S. Gov't
Summary
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The research investigates performance outcomes of Thoroughbred racehorses in Hong Kong from 2000 to 2010, determining any influences of different factors on career lengths and risks for retirement. It concludes that a horse’s region of origin can impact various performance aspects, therefore, future research should consider these effects when conducting comparisons across different populations.
Objective and Methodology
- The study aimed to offer summary statistics for performance outcomes of Thoroughbred racehorses in Hong Kong within the decade specified, meanwhile showcasing evidence on the current differences in racing careers across sexes and regions of origin.
- Data regarding performance of Thoroughbred horses racing in Hong Kong from September 3, 2000, to March 12, 2011, were collected for this study, featuring a sample size of 4950 horses.
- The research focused on specific aspects of horse racing careers, including career length, number of starts, and periods of rest from racing annually.
- For understanding career length, Kaplan-Meier survival curves were produced, categorized by sex, age group, country and region of origin.
- A Cox’s proportional hazards model was used to assess which factors played a role in influencing the risk of retirement from horse racing in Hong Kong.
Results
- The study discovered significant disparities in career length based on the Log-rank tests across sex, age groups, countries of origin, and regions of origin.
- It was revealed that an increased age at the first start in Hong Kong ordinarily increased the retirement risk, while higher earnings per race and originating from Europe served to decrease the same risk.
Conclusions
- The results indicated that a horse’s region of origin significantly influences different career outcomes within the racing population.
- The study highlights the need for future research to recognize and account for these regional differences when analyzing and comparing results across multiple populations.
Cite This Article
APA
Velie BD, Stewart BD, Lam K, Wade CM, Hamilton NA.
(2013).
Profiling the careers of Thoroughbred horses racing in Hong Kong between 2000 and 2010.
Equine Vet J, 45(6), 694-699.
https://doi.org/10.1111/evj.12078 Publication
Researcher Affiliations
- Faculty of Veterinary Science, University of Sydney, New South Wales, Australia.
MeSH Terms
- Aging
- Animals
- Female
- Hong Kong
- Horses
- Male
- Physical Conditioning, Animal / physiology
- Running / statistics & numerical data
- Sports / statistics & numerical data
- Time Factors
Citations
This article has been cited 2 times.- Sobotková E, Kopec T, Mikule V, Kuřitková D. Influence of horse demographics, country of training and race distance on the rating of Thoroughbreds. Arch Anim Breed 2023;66(4):299-313.
- Argentina M, Mahadevan L. Fluid-flow-induced flutter of a flag. Proc Natl Acad Sci U S A 2005 Feb 8;102(6):1829-34.
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