Game-related injuries among elite Pee Wee ice hockey players (2011–2012)
| Injury | Severe injury | Concussion | Severe concussion | |||||
|---|---|---|---|---|---|---|---|---|
| Outcome | Alberta | Ontario | Alberta | Ontario | Alberta | Ontario | Alberta | Ontario |
| Number of injuries or concussions | 61 | 27 | 32 | 11 | 36 | 13 | 19 | 5 |
| Athlete participation, h | 13 151.20 | 7123.95 | 13 151.20 | 7123.95 | 13 151.20 | 7123.95 | 13 151.20 | 7123.95 |
| Injury rate, injuries per 1000 player-hours (95% CI) | 4.64 (3.15 to 6.84) | 3.79 (2.46 to 5.84) | 2.43 (1.67 to 3.54) | 1.54 (0.91 to 2.61) | 2.73 (1.90 to 3.94) | 1.82 (1.14 to 2.92) | 1.44 (0.96 to 2.17) | 0.70 (0.37 to 1.33) |
| Incidence rate ratio (IRR) | 1.22 (0.69 to 2.16) | 1 (Reference) | 1.58 (0.84 to 2.96) | 1 (Reference) | 1.50 (0.84 to 2.68) | 1 (Reference) | 2.06 (0.98 to 4.31) | 1 (Reference) |
| Adjusted IRR* | 0.98 (0.53 to 2.96) | 1 (Reference) | 1.22 (0.61 to 2.46) | 1 (Reference) | ||||
Severe IRRs based on Poisson regression analysis offset for exposure hours and adjusted only for clustering by team, owing to fewer injuries.
* IRRs based on Poisson regression analysis offset for exposure hours and adjusted for clustering by team and covariates (year of play, previous injury or concussion, position of play, and attitudes towards body checking). The number of participants with complete data was n=385 for adjusted injury IRR and 393 for concussion IRR.