Table 1.
Participant demographic and injury history information.
| Total | First Concussion | Repeat Concussion | p-value | |
|---|---|---|---|---|
| Sample, n(%) | 1051 | 533 (50.7) | 518 (49.3) | |
| Female, n(%) | 604 (57.5) | 309 (58.0) | 295 (57.0) | 0.74 |
| Age, years, mean(SD) | 15.6 (1.2) | 15.4 (1.2) | 15.8 (1.3) | <0.001 |
| Race/Ethnicity, n (%) | <0.001 | |||
| Non-Hispanic White | 795 (75.7) | 375 (70.4) | 420 (81.2) | |
| Non-Hispanic Black | 108 (10.3) | 84 (15.8) | 24 (4.6) | |
| Hispanic | 47 (4.5) | 23 (4.3) | 24 (4.6) | |
| Non-Hispanic Asian/Asian Pacific Islander/other/multiple race/unknown | 100 (9.5) | 51 (9.6) | 49 (9.5) | |
| Lifetime Concussions, median(IQR) | 1 (1,3) | 1 (1,1) | 2 (2,3) | <0.001 |
| Days Since Injury, mean(SD) | 13.5 (7.3) | 14.0 (7.4) | 12.9 (7.1) | a0.02 |
| Mechanism of Injury, n(%) | 0.07 | |||
| Sport-Related | 657 (62.5) | 328 (61.5) | 329 (63.5) | |
| Non-Sport Related | 394 (37.5) | 205 (38.5) | 189 (36.5) | |
| Struck by or Against Object | 151 (38.5) | 76 (37.3) | 75 (39.9) | |
| Struck by Person | 54 (13.8) | 21 (10.3) | 33 (17.6) | |
| Fall | 107 (27.3) | 58 (28.4) | 49 (26.1) | |
| Motor Vehicle Crash | 65 (16.6) | 41 (20.1) | 24 (12.8) | |
| Bicycle-Related | 6 (1.5) | 3 (1.5) | 3 (1.6) | |
| Pedestrian Struck | 3 (0.8) | 3 (1.5) | 0 | |
| Unknown | 1 (0.3) | 1 (0.5) | 0 | |
| Missing | 5 (1.3) | 1 (0.5) | 4 (2.1) | |
| Medical History, n(%) | ||||
| ADHD | 156 (14.9) | 75 (14.2) | 81 (15.7) | 0.48 |
| Anxiety | 243 (23.3) | 114 (21.6) | 129 (25.0) | 0.19 |
| Bipolar | 12 (1.2) | 4 (0.8) | 8 (1.6) | 0.26 |
| Depression | 153 (14.6) | 69 (13.1) | 83 (16.1) | 0.17 |
| Learning Disability | 110 (10.5) | 53 (10.0) | 57 (11.1) | 0.59 |
| Migraines | 157 (15.0) | 62 (11.7) | 95 (18.4) | 0.003 |
| Motion Sickness | 104 (10.0) | 36 (6.8) | 68 (13.2) | 0.001 |
IQR: Interquartile range; ADHD: Attention deficit/hyperactivity disorder