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Two-Way Risk Ratio and 95% CI for Concussion Sustained in Boys’ High School Football, Soccer, Wrestling, Ice Hockey, and Lacrossea
| Football | Soccer | Wrestling | Ice Hockey | Lacrosse | |
|---|---|---|---|---|---|
| Football | 1 | ||||
| Soccer | 2.98 (2.68-3.32) | 1 | |||
| Wrestling | 2.27 (2.05-2.51) | 0.76 (0.66-0.87) | 1 | ||
| Ice hockey | 1.27 (1.10-1.46) | 0.43 (0.36-0.50) | 0.56 (0.47-0.66) | 1 | |
| Lacrosse | 1.67 (1.47-1.89) | 0.56 (0.48-0.65) | 0.73 (0.63-0.86) | 1.31 (1.09-1.58) | 1 |
aSport in the left column is the referent group. Significance was set to P = .05.
