Injury type and study group Injuries per 1000 AEs Relative risk (95% CI) P value ACL injury        RBS program 0.000 0.298 (0.012, 7.175) 0.29  Control program 0.077 Acute knee injuries        RBS program 0.000 0.127 (0.007, 2.421) 0.06  Control program 0.232 Ankle sprain        RBS program 0.491 0.781 (0.302, 2.020) 0.61 Control program 0.619

Table 4: Comparisons of injury incidence (injuries/1000 athlete exposures) and relative risk by injury type in the RBS and control groups.