Table 1 Participant characteristics
From: Whole blood stimulation provides preliminary evidence of altered immune function following SRC
Characteristic | Healthy, N = 301 | SRC, N = 221 |
|---|---|---|
Age | 21 (19, 23) | 21 (20, 22) |
Sex | Â | Â |
 Female | 18 (60%) | 11 (50%) |
 Male | 12 (40%) | 11 (50%) |
Concussion History | Â | Â |
 None | 18 (60%) | 10 (45%) |
 One | 9 (30%) | 7 (32%) |
 More than one | 3 (10%) | 5 (23%) |
Years Since Last Concussion | 2 (1, 5) | 2 (1, 5) |
Sport | Â | Â |
 Basketball | 4 (13%) | 0 (0%) |
 Field Hockey | 1 (3.3%) | 1 (4.5%) |
 Figure Skating | 0 (0%) | 1 (4.5%) |
 Football | 0 (0%) | 2 (9.1%) |
 Ice Hockey | 12 (40%) | 4 (18%) |
 Lacrosse | 2 (6.7%) | 1 (4.5%) |
 Mountain Biking | 0 (0%) | 1 (4.5%) |
 Softball | 0 (0%) | 1 (4.5%) |
 Rowing | 0 (0%) | 1 (4.5%) |
 Rugby | 1 (3.3%) | 8 (36%) |
 Soccer | 2 (6.7%) | 1 (4.5%) |
 Swimming | 0 (0%) | 1 (4.5%) |
 Volleyball | 8 (27%) | 0 (0%) |