Frequencies and rates (per 1000 AEs) of head injuries among men and women, by categories of competition level, setting and injury mechanism | Frequencies and rates (per 1000 AEs) of head injuries by categories of sex, competition level, setting and injury mechanism | ||||
---|---|---|---|---|---|
Explanatory variable | Men Frequency of Head Injuries (Rate per 1000 AEs) | Women Frequency of Head Injuries (Rate per 1000 AEs) | Women vs. Men Rate Ratio [95% Wald CI] | Frequency of Head Injuries (Rate per 1000 AEs) | Unadjusted Rate Ratio [95% Wald CI] |
Sex | |||||
-Women | n/a | n/a | n/a | 486 (0.87) | |
-Men | n/a | n/a | n/a | 374 (0.71) | 1.23 [1.08, 1.41] |
Competition level | |||||
-Division I | 153 (0.71) | 224 (0.89) | 1.25 [1.02, 1.54] | 377 (0.81) | |
-Division II & III | 221 (0.71) | 262 (0.86) | 1.21 [1.01, 1.45] | 483 (0.78) | 1.03 [0.90, 1.18] |
Setting | |||||
-Game | 250 (2.19) | 341 (2.49) | 1.14 [0.97, 1.34] | 591 (2.36) | |
-Practice | 124 (0.30) | 145 (0.35) | 1.15 [0.91, 1.46] | 269 (0.32) | 7.29 [6.32, 8.43] |
Mechanism | |||||
-Player-to-player contact | 305 (0.58) | 306 (0.55) | 0.95 [0.81, 1.11] | 611 (0.56) | |
-All other mechanisms | 69 (0.13) | 180 (0.32) | 2.48 [1.87, 3.26] | 249 (0.23) | 2.45 [2.12, 2.84] |