Table 1.
Sample characteristics
| mTBI |
Trauma control |
||
|---|---|---|---|
|
N= 94 |
N= 80 |
||
| M (SD) or % | M (SD) or % | p-Value | |
| Gender (male) | 60.6% | 48.8% | .116 |
| Age (years) | 29.11 (7.58) | 30.65 (7.83) | .189 |
| Race | .230 | ||
| Black | 51.1% | 56.3% | |
| White | 40.4% | 41.3% | |
| Other/unknown | 8.5% | 2.5% | |
| ADHD | 12.9% | 6.3% | .143 |
| Learning disability | 4.3% | 6.3% | .554 |
| Psychiatric diagnosis | 8.5% | 1.3% | .031 |
| WTAR standard score | 93.88 (17.09) | 95.28 (16.95) | .592 |
| Household SES | 41.24 (12.01) | 42.99 (10.53) | .361 |
| Health insurance type | .841 | ||
| Commercial | 46.8% | 47.4% | |
| Government | 31.9% | 32.1% | |
| None | 20.2% | 20.5% | |
| Other/unknown | 1.1% | 0.0% | |
| Number of prior mTBIs | .762 | ||
| 0 | 64.9% | 70.9% | |
| 1 | 28.7% | 25.3% | |
| 2 | 3.2% | 1.3% | |
| 3 + | 3.2% | 2.5% | |
| Mechanism of injury | .039 | ||
| Motor vehicle-traffic | 59.6% | 66.3% | |
| Fall | 25.5% | 31.3% | |
| Assault | 4.3% | 0.0% | |
| Struck by/against | 10.6% | 2.5% | |
| Litigation related to injury | 27.3% | 27.3% | .999 |
| Worker’s compensation injury | 15.9% | 9.0% | .180 |
Note. ADHD = attention deficit-hyperactivity disorder; WTAR = Wechsler Test of Adult Reading standard score; SES = Hollingshead socioeconomic status. Missingness was n = 1 on number of prior mTBIs and ADHD, 9 on litigation status, and 8 on worker’s compensation status.