Table 4.
Subgroup means ± SEM and ranges ( ) for demographic characteristics, deployment history, and blast exposure of study participants.
| Demographics | DC-N | DC-HP | TBI-N | TBI-HP |
|---|---|---|---|---|
| Age | 31.8 ± 1.79 (23–47) | 32.7 ± 4.7 (27–42) | 32.1 ± 2.19 (22–60) | 35.8 ± 2.08 (27–48) |
| Education (years) | 13.8 ± 0.38 (12–17) | 13.3 ± 0.67 (12–14) | 14.3 ± 0.36 (12–20) | 14.2 ± 0.3 (12–16) |
| Race | 13/17 White, 1/17 Black, 3/17 other | 3/3 White | 20/27 White, 2/27 Black, 2/27 Asian, 1/27 Native Hawaiian, 2/27 other | 8/12 White, 1/12 Black, 3/12 other |
| BMI | 27.1 ± 1 (21–34.7) | 25.4 ± 3.05 (19.8–30.3) | 27.8 ± 0.84 (20.5–35.5) | 30.9 ± 1.5 (20.1–38.7) |
| WTAR—Verbal IQ | 108.06 ± 2.17 | 114.5 ± 2.5 | 106.59 ± 1.91 | 106.17 ± 2.26 |
| WTAR—Full Scale IQ | 107.41 ± 2.05 | 113.5 ± 2.5 | 105.89 ± 1.93 | 105.58 ± 2.17 |
| Combat Experiences Questionnaire | 4.7 ± 1.0 (0–14) | 4.3 ± 2.3 (0–8) | 12.9 ± 0.5 (6–18) | 13.6 ± 0.7 (9–17) |
| Deployment History | DC-N | DC-HP | TBI-N | TBI-HP |
| Number of deployments | 2 (1–3) | 2 (2–3) | 2 (1–3) | 2 (1–3) |
| Total deployment time (months) | 14.1 months ± 1.23 (7.1–24.8) | 28.7 months ± 5.03 (19.3–36.5) | 19.2 months ± 2.03 (5.1–48.7) | 21.9 months ± 2.3 (12–39.5) |
| Blast exposure | DC-N | DC-HP | TBI-N | TBI-HP |
| Number of deployment blast exposures | 0 | 0 | 8.48 ± 2.12 (1–52) | 14.58 ± 5.18 (3–66) |
| Time since last blast exposure | 0 | 0 | 4.61 years ± 0.39 (1.65–8.19) | 4.29 years ± 0.49 (1.65–8.19) |
BMI, body mass index; WTAR, Wechsler Test of Adult Reading.