TABLE 1.
Demographic data
| Characteristic | TBI | PTSD | PTSD + TBI | Control | P Value |
|---|---|---|---|---|---|
| Age, mean (SD), y | 32.24 (7.65) | 32.54 (5.97) | 33.82 (7.95) | 31.58 (7.33) | 0.159 |
| Female, no. (%) | 3 (3.85%) | 5 (8.20%) | 3 (6.82%) | 8 (10.81%) | 0.411 |
| Race, no. (%) | 0.398 | ||||
| White | 40 (51.95%) | 32 (53.33%) | 20 (45.45%) | 41 (55.41%) | |
| African American | 5 (6.49%) | 8 (13.33%) | 8 (18.18%) | 11 (14.86) | |
| Native American or Hawaiian | 0 (0%) | 0 (0%) | 0 (0%) | 1 (1.35%) | |
| Asian | 5 (6.49%) | 6 (10.0%) | 1 (2.27%) | 9 (12.16) | |
| Hispanic | 19 (24.68%) | 11 (18.33%) | 11 (25%) | 9 (12.16) | |
| Others | 8 (10.39%) | 3 (5.0%) | 4 (9.09%) | 3 (4.05%) | |
| Time since last deploy. (months), mean (sd) | 27.78 (30.97) | 32.63 (38.61) | 43.01 (45.54) | 26.85 (39.60) | 0.136 |
| TBI group characteristics, mean (sd) | |||||
| CSI current score | 4.22 (7.94) | 6.81 (11.82) | 11.10 (12.39) | 0.74 (1.82) | 0.0013 |
| CSI lifetime score | 13.32 (13.48) | 13.27 (14.30) | 24.39 (19.84) | 5.42 (6.67) | 0.0007 |
| Loss of consciousness, minutes median | 0.75 | 0.75 | 0.900 | ||
| Time since last event, months mean (sd) | 75.62 (70.28) | 74.05 (46.31) | 0.507 | ||
Note: The significance is evaluated across four groups when the data of four groups are available, between TBI and TBI‐PTSD groups when the data of these two groups only are available.
Abbreviations: CSI, Concussion Symptoms Inventory; PTSD, posttraumatic stress disorder; SD, standard deviation; TBI, traumatic brain injury.