Injury risk (injury incidence per 1000 h with 95% CI) among players randomised to the control and to regular, coach-focused and comprehensive, player-focused intervention groups and among players stratified into the high, medium and low adherence groups
| Randomisation | Adherence | ||||||
|---|---|---|---|---|---|---|---|
| Injury incidence | Crude IRR | Adjusted IRR* | Injury incidence | Crude IRR | Adjusted IRR* | ||
| All injuries | |||||||
| Comprehensive | 6.5 (3.0 to 13.9) | 1.08 (0.46 to 2.53) | 1.37 (0.64 to 2.95) | High | 3.7 (2.1 to 6.5) | 0.43 (0.19 to 1.00) | 0.44 (0.18 to 1.06) |
| Regular | 8.4 (4.6 to 15.1) | 1.39 (0.69 to 2.82) | 1.61 (0.59 to 4.43) | Medium | 9.6 (6.6 to 14.1) | 1.11 (0.53 to 2.32) | 0.97 (0.47 to 2.00) |
| Control | 6.0 (3.8 to 9.3) | – | – | Low | 8.7 (4.6 to 16.5) | – | |
| Lower extremity injuries | |||||||
| Comprehensive | 4.8 (2.2 to 11.0) | 0.97 (0.38 to 2.47) | 1.26 (0.57 to 2.78) | High | 3.4 (1.8 to 6.4) | 0.48 (0.19 to 1.16) | 0.52 (0.21 to 1.31) |
| Regular | 7.2 (4.1 to 12.8) | 1.43 (0.68 to 3.03) | 1.64 (0.63 to 4.24) | Medium | 7.6 (5.0 to 11.6) | 1.08 (0.51 to 2.30) | 0.97 (0.46 to 2.01) |
| Control | 5.0 (3.0 to 8.6) | – | – | Low | 7.0 (3.7 to 13.3) | – | – |
*Adjusted for cluster, age groups, level of play (tier) and previous injuries in the past 6 weeks.
The control and low adherence groups served as respective reference groups. Crude and adjusted incidence rate ratios (IRR) are presented with 95% CI.