TABLE 4.
Comparison of Head Impact Rate Ratios Across Sports by Gendera
| Sport Comparison | Female | Male |
|---|---|---|
| Soccer (total) | ||
| Basketball | 5.6 (4.3-7.0) | 3.4 (2.6-4.2) |
| Lacrosse | 22.0 (16.8-27.1) | 3.7 (3.1-4.3) |
| Field hockey | 148.1 (112.9-183.2) | NA |
| Soccer (nonheaders) | ||
| Basketball | 0.9 (0.7-1.1) | 0.8 (0.6-1.0) |
| Lacrosse | 3.5 (2.7-4.3) | 0.9 (0.7-1.0) |
| Field hockey | 23.7 (18.1-29.3) | NA |
| Basketball | ||
| Lacrosse | 3.9 (2.8-4.9) | 1.1 (0.8-1.3) |
| Field hockey | 26.3 (19.1-33.4) | NA |
| Lacrosse | ||
| Field hockey | 6.7 (4.9-8.6) | NA |
aData are presented as rate ratio (95% CI). Bold values indicate significant rate ratio difference. NA, not applicable.