Demographic information and baseline concussion history and attitudes by team
| Team 1 (n=27) | Team 2 (n=24) | Team 3* (n=24) | Team 4 (n=23) | Team 5 (n=24) | Team 6 (n=24) | Total (n=146) | |
|---|---|---|---|---|---|---|---|
| Mean age (SD) | 20.9 (1.07) | 20.3 (1.24) | 20.8 (1.34) | 21.3 (1.54) | 20.0 (1.23) | 21.1 (1.04) | 20.7 (1.30) ‡ |
| Diagnosed with concussion in previous season | 6 (22.2%) | 8 (33.3%) | 0 (0.0%) | 2 (8.7%) | 3 (12.5%) | 8 (33.3%) | 27 (18.5%)‡ |
| Number of diagnosed concussions reported (SD) | 0.96 (0.90) | 1.0 (1.14) | 0.46 (0.88) | 0.76 (1.22) | 0.87 (1.22) | 1.04 (1.16) | 0.85 (1.09) |
| (Max) | (3) | (4) | (3) | (4) | (5) | (4) | (5) |
| Suspected concussions that were undiagnosed | 19 (70.4%) | 14 (58.3%) | 11 (45.8%) | 14 (60.9%) | 13 (52.0%) | 10 (41.7%) | 81 (55.1%) |
| Number of suspected concussions that were undiagnosed (SD) | 2.07 (1.58) | 1.93 (2.29) | 1.43 (1.41) | 2.65 (2.98) | 2.21 (2.67) | 1.89 (1.51) | 2.03 (2.13) |
| (Max) | (5) | (10) | (5) | (10) | (10) | (5) | (10) |
| Previous year: concussion-related symptoms | |||||||
| Direct blow to the head resulting in dizziness | 17 (63.0%) | 11 (47.8%) | 11 (45.8%) | 13 (56.5%) | 14 (58.3%) | 11 (45.8%) | 77 (53.1%) |
| Loss of consciousness | 2 (7.4%) | 0 (0.0%) | 0 (0.0%) | 1 (4.3%) | 0 (0.0%) | 0 (0.0%) | 3 (2.1%) |
| Saw stars or colours after being hit in head while playing | 14 (51.9%) | 12 (50.0%) | 13 (54.2%) | 9 (40.9%) | 13 (54.2%) | 6 (25.0%) | 67 (46.2%) |
| Vomit, feel nauseated, or ringing in ears after blow to head | 4 (14.8%) | 2 (8.3%) | 2 (8.3%) | 3 (13.0%) | 5 (20.8%) | 3 (12.5%) | 19 (13.0%) |
| Forget what to do on the field after receiving a blow to the head | 0 (0.0%) | 0 (0.0%) | 0 (0.0%) | 1 (4.3%) | 0 (0.0%) | 1 (4.2%) | 2 (1.4%) |
| Head hurt at least once during the week after a blow to the head | 8 (29.6% | 7 (29.2%) | 2 (8.3%) | 5 (21.7%) | 5 (20.8%) | 5 (20.8%) | 32 (21.9%) |
| Experience problems studying, concentrating, doing classwork after suffering a blow to the head or concussion | 6 (22.2%) | 8 (33.3%) | 1 (4.2%) | 2 (8.7%) | 6 (25.0%) | 6 (25.0%) | 29 (19.9%) |
| Previous year: postinjury behaviour | |||||||
| Experience dizziness but continue to play in game or practice | 6 (22.2%) | 10 (41.7%) | 6 (25.0%) | 8 (34.8%) | 8 (33.3%) | 4 (16.7%) | 42 (28.8%) |
| Fail to report dizziness to coaches or athletic trainers while playing | 6 (22.2%) | 9 (37.5%) | 6 (25.0%) | 4 (17.4%) | 5 (20.8%) | 4 (16.7%) | 34 (23.3%) |
| Experience dizziness, headaches or nausea the day after a blow to the head but do not report | 1 (3.7%) | 2 (8.3%) | 5 (20.8%) | 2 (8.7%) | 2 (8.3%) | 1 (4.2%) | 13 (8.9%) |
| Play with headache after being hit in the head | 14 (51.9%) | 13 (54.2%) | 13 (54.2%) | 11 (47.8%) | 13 (54.2%) | 3 (12.5%) | 67 (45.9%)‡ |
*Team 3 was asked all questions after being emailed concussion education during the preseason, whereas the other teams answered the above questions prior to education.
‡Significant difference between teams, p<0.05.