Table 1 Demographic characteristics and association with EqPV-H infection. Association was assessed by logistic regression. Each racetrack only had horses of one breed, therefore, association by racetrack was assessed separately by Chi-square analysis
From: Prevalence and pathology of equine parvovirus-hepatitis in racehorses from New York racetracks
Population | Cases (no.) | PCR Positive (no.) | PCR Positive (%) | p value |
|---|---|---|---|---|
All cases | 191 | 42 | 22% | |
Breed | ||||
Thoroughbred | 157 | 36 | 23% | 0.347 |
Standardbred | 34 | 6 | 18% | |
Sex | ||||
Stallion | 32 | 5 | 16% | 0.587 |
Gelding | 87 | 20 | 23% | |
Mare | 72 | 17 | 24% | |
Age | ||||
Median (range) | 4 (2–13) | 4.5. (2–10) | 0.688 | |
Cause of death | ||||
Musculoskeletal injury | 119 | 26 | 22% | 0.839 |
Other causes | 72 | 16 | 22% | |
Submission period | ||||
Spring (April-June) | 58 | 15 | 26% | 0.856 |
Summer (July-Sept) | 76 | 15 | 20% | |
Fall (Oct-Dec) | 27 | 6 | 22% | |
Winter (Jan-Mar) | 30 | 6 | 20% | |
Racetrack | ||||
A (TB) | 74 | 16 | 22% | 0.204 |
B (SB) | 3 | 0 | 0% | |
C (TB) | 31 | 8 | 26% | |
D (TB) | 35 | 10 | 29% | |
E (TB) | 17 | 2 | 12% | |
F (SB) | 4 | 2 | 50% | |
G (SB) | 12 | 2 | 17% | |
H (SB) | 3 | 2 | 67% | |
I (SB) | 7 | 0 | 0% | |
J (SB) | 5 | 0 | 0% |