Site of injury | Hard court | Natural grass | Synthetic grass | |||
Incidence rate × 1000 | 95% CI | Incidence rate × 1000 | 95% CI | Incidence rate × 1000 | 95% CI | |
Knee | 20.9 | 13.6 to 30.7 | 16.9 | 10.5 to 25.7 | 19.5 | 12.9 to 28.3 |
Hip | 5.0 | 1.8 to 10.9 | 2.4 | 0.5 to 7.0 | 1.4 | 0.2 to 5.2 |
Ankle | 21.7 | 14.3 to 31.7 | 10.5 | 5.6 to 17.8 | 14.5 | 8.9 to 22.2 |
Spine | 2.5 | 0.5 to 7.3 | 0.0 | 0.0 to 3.0 | 2.2 | 0.4 to 6.3 |
Muscular injury | 9.2 | 4.6 to 16.4 | 15.3 | 9.2 to 23.8 | 6.5 | 3.0 to 12.3 |
Other | 9.2 | 4.6 to 16.4 | 5.6 | 2.3 to 11.6 | 6.5 | 3.0 to 12.3 |