Intentional versus unintentional contact injury rates by divisions that allow body checking
| Body checking not allowed | Body checking allowed | |
|---|---|---|
| Player hours | 495 254 | 91 506 |
| Injuries: intentional | 32 | 53 |
| Rate: per 1000 | 0.065 | 0.579 |
| RR | 1 | 3.95 |
| 95% CI | – | 0.80 to 19.50 |
| p Value | ref | 0.09 |
| Injuries: unintentional | 96 | 65 |
| Rate: per 1000 | 0.194 | 0.71 |
| RR | 1 | 3.27 |
| 95% CI | – | 1.07 to 10.00 |
| p Value | Ref | 0.038 |
| Total | 128 | 118 |
| Rate: per 1000 | 0.258 | 1.29 |
| RR | 1 | 3.75 |
| 95% CI | – | 1.51 to 9.34 |
| p Value | ref | 0.005 |
RR, rate ratio.