TABLE 2.
Sample demographics and clinical characteristics
| Military controls (n = 50) | TBI (n = 52) | F or χ2 | P | Effect size | |
|---|---|---|---|---|---|
| Combat exposure and psychiatric symptom severity | |||||
| Served in combat a , yes | 86% | 85% | 0.04 | .84 | φ = 0.02 |
| CAPS current total score | 31.0 (30.8) | 33.7 (26.2) | 0.2 | .65 | ηp 2 = 0.002 |
| CAPS lifetime total score | 43.3 (40.7) | 48.2 (30.1) | 0.4 | .51 | ηp 2 = 0.005 |
| Geriatric Depression Scale total score | 2.8 (3.5) | 2.6 (2.6) | 0.09 | .76 | ηp 2 = 0.001 |
| Medical history and substance use | |||||
| History of diabetes, yes | 44% | 42% | 0.03 | .86 | φ = 0.02 |
| History of high blood pressure, yes | 66% | 56% | 1.1 | .29 | φ = 0.11 |
| History of alcohol use disorder, yes | 37% | 45% | 0.72 | .40 | φ = 0.09 |
| History of substance use disorder, yes | 12% | 10% | 0.15 | .69 | φ = 0.04 |
Abbreviations: CAPS, Clinician Administered PTSD Scale; MCs, military controls; MMSE, Mini‐Mental Status Examination; TBI, traumatic brain injury.
a
Denotes chi‐squared test
‡Denotes P < .05.
Please note that five subjects (three from the MCs and two from the TBI group) were missing CAPS data; two TBI subjects (one from the MCs and one from the TBI group) were missing alcohol or substance use information.