Intervention group N, incidence (95% CI) | Control group N, incidence (95% CI) | Incidence rate ratio (95% CI) | P value | |
All injuries | ||||
Total* | 197, 12.1 (10.4 to 14.0) | 152, 18.7 (15.8 to 22.1) | 0.65 (0.52 to 0.81) | <0.001 |
Female | 76, 12.8 (10.0 to 16.3) | 31, 16.6 (11.2 to 24.4) | 0.77 (0.49 to 1.22) | 0.265 |
Male | 121, 11.7 (9.8 to 14.1) | 121, 19.3 (16.1 to 23.2) | 0.61 (0.47 to 0.79) | <0.001 |
Lower limb injuries | ||||
Total* | 155, 9.5 (8.1 to 11.2) | 126, 15.5 (12.9 to 18.6) | 0.62 (0.48 to 0.79) | <0.001 |
Female | 58, 9.7 (7.3 to 12.9) | 27, 14.4 (9.5 to 21.7) | 0.68 (0.41 to 1.12) | 0.126 |
Male | 97, 9.4 (7.7 to 11.5) | 99, 15.8 (12.9 to 19.3) | 0.60 (0.45 to 0.79) | <0.001 |
Knee injuries | ||||
Total* | 87, 5.4 (4.3 to 6.7) | 57, 7.0 (5.4 to 9.2) | 0.76 (0.54 to 1.08) | 0.127 |
Female | 34, 5.8 (4.0 to 8.3) | 12, 6.3 (3.4 to 11.7) | 0.91 (0.45 to 1.86) | 0.798 |
Male | 53, 5.2 (3.9 to 6.8) | 45, 7.2 (5.3 to 9.7) | 0.72 (0.48 to 1.08) | 0.108 |
All time loss injuries | ||||
Total* | 79, 4.9 (3.9 to 6.1) | 64, 7.7 (6.0 to 9.9) | 0.64 (0.45 to 0.90) | 0.010 |
Female | 28, 4.6 (3.3 to 6.5) | 9, 4.8 (2.6 to 8.8) | 0.96 (0.48 to 1.94) | 0.916 |
Male | 51, 4.9 (3.7 to 6.6) | 55, 8.7 (6.6 to 11.5) | 0.57 (0.38 to 0.85) | 0.005 |
Acute injuries | ||||
Total* | 52, 3.2 (2.4 to 4.2) | 47, 5.8 (4.3 to 7.7) | 0.55 (0.37 to 0.83) | 0.004 |
Female | 21, 3.5 (2.3 to 5.4) | 9, 4.8 (2.5 to 9.3) | 0.73 (0.33 to 1.60) | 0.431 |
Male | 31, 3.0 (2.1 to 4.3) | 38, 6.0 (4.4 to 8.4) | 0.50 (0.31 to 0.81) | 0.005 |
Acute time loss injuries | ||||
Total* | 28, 1.7 (1.2 to 2.5) | 25, 3.1 (2.1 to 4.5) | 0.55 (0.33 to 0.94) | 0.029 |
Female | 11, 1.8 (1.0 to 3.2) | 6, 3.2 (1.5 to 6.9) | 0.57 (0.22 to 1.50) | 0.254 |
Male | 17, 1.7 (1.0 to 2.6) | 19, 3.0 (2.0 to 4.7) | 0.54 (0.29 to 1.03) | 0.062 |
P values in bold type are statistically significant.
*Model adjusted for sex.