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Participant demographics.
| Variable | N (%) |
|---|---|
| Age, M (SD) | 14.22 (1.21) |
| Sex | |
| Males | 128 (43.5%) |
| Females | 166 (56.5%) |
| History of concussion | |
| Yes | 85 (29%) |
| 1 | 57 (19.5%) |
| 2–3 | 27 (9.2%) |
| 4 | 1 (0.3%) |
| Level of competition | |
| Competitive | 249 (84.6%) |
| House league | 17 (5.7%) |
| Recreation | 8 (2.7%) |
