Prevalence
(%)
0,35
0,3
0,25
0,2
0,15
0,1
0,05
0
0,3
0,25
0,16
≤
1200
1201-‐1600
≥
1601
Race
distance
(m)
Fig 3: Prevalence of PRDS in racehorses competing over different distances from
1987 to 2013. The Relative Risk of PRDS associated with competing in races over
1201-1600m was 1.22 (P<0.0001) whilst that associated with competing in races of
more than 1600m was 1.42 (P<0.0001) when compared to competing in races of
less than 1200m.
Proceedings
of
the
South
African
Equine
Veterinary
Association
Congress
2016
34