Analysis of risk factors for all injury types based on Poisson regression analysis adjusted for clustering by team and covariates (previous injury and age group)
| Injury type | |||||
|---|---|---|---|---|---|
| All injury | Acute onset injury | Lower-extremity injury | Ankle sprain injury | Knee sprain injury | |
| Covariates | Adjusted incidence rate ratio (95% CI) | Adjusted incidence rate ratio (95% CI) | Adjusted incidence rate ratio (95% CI) | Adjusted incidence rate ratio (95% CI) | Adjusted incidence rate ratio (95% CI) |
| Study group | |||||
| Training | 0.62 (0.39 to 0.99)* | 0.57 (0.35 to 0.91)* | 0.68 (0.42 to 1.11) | 0.5 (0.24 to 1.4) | 0.38 (0.08 to 1.75) |
| Control | 1 | 1 | 1 | 1 | 1 |
| Previous injury | |||||
| Yes | 2.15 (1.45 to 3.19)* | 2.15 (1.41 to 3.26)* | 1.88 (1.22 to 2.9)* | 2.29 (1.23 to 4.28)* | 3.63 (1.24 to 10.58)* |
| No | 1 | 1 | 1 | 1 | 1 |
| Age group | |||||
| U15–U18 | 1.7 (1.07 to 2.7)* | 1.85 (1.18 to 2.9)* | 1.54 (0.94 to 2.52) | 2.62 (1.14 to 6.0)* | 1.29 (0.37 to 4.4) |
| U13–U15 | 1 | 1 | 1 | 1 | 1 |
↵* Significant based on p<0.05.