There was no difference in the risk of injury between teams
with high, intermediate and low compliance (table 2).
However, the risk of injury was 35% (p=0.011) lower among
players in the tertile with the highest compliance (mean 49.2
sessions per season, 1.5 sessions per week; range 33–95 sessions
per season) compared with players in the intermediate
tertile (mean 23.4 sessions per season, 0.7 sessions per week;
range 15–32 sessions per season). In contrast, there was no
signifi cant reduction (p=0.13) of injury risk between the intermediate
tertile and the tertile with the lowest compliance
(mean 7.7 sessions per season, 0.2 sessions per week; range
0–14 sessions). Furthermore, the risk of an acute injury was
39% (p=0.008) lower for players in the tertile with the highest
compliance compared with players in the intermediate tertile,
whereas a 35% reduction of injury risk compared with
the tertile with the lowest compliance was not statistically
signifi cant (p=0.09).