Table 1.
Demographic and Clinical Characteristics for the PTSD and no-PTSD Control Groups.
| Characteristic | Total (n = 14) | PTSDa (n = 8) | No-PTSDb (n = 6) | x 2/t | p Value |
|---|---|---|---|---|---|
| Age (years), M (SD) | 35.07 (8.9) | 32.25 (8.9) | 38.83 (8.1) | 1.423 | .180 |
| Sex (males), n (%) | 14 (100.0) | 8 (100.0) | 6 (100.0) | ||
| Race (White) n (%) | 6 (46.2) | 4 (50.0) | 2 (33.3) | 0.737 | .592 |
| Education (years), M (SD) | 14.14 (2.1) | 14.38 (3.2) | 13.83 (1.0) | −0.453 | .658 |
| BMI (kg/m2), M (SD) | 30.63 (3.7) | 30.20 (4.2) | 31.23 (3.2) | 0.520 | .613 |
| Medication use,c n (%) | 8 (57.1) | 5 (71.4) | 3 (50) | 0.627 | .592 |
| Number of deployments, M (SD) | 2.21 (1.2) | 1.75 (1.0) | 2.83 (1.2) | 1.835 | .091 |
| mTBI diagnosis, n (%) | 9 (64.3) | 8 (100.0) | 1 (16.7) | 10.370 | .003 |
| PCL-M, M (SD) | |||||
| Baseline | 40.36 (16.6) | 53.13 (8.7) | 23.33 (1.6) | <.001 | |
| Follow-up | 44.21 (19.8) | 60.38 (5.5) | 22.67 (1.6) | −16.117 | <.001 |
| QIDS, M (SD) | |||||
| Baseline | 11.14 (5.5) | 15.13 (3.0) | 5.83 (2.6) | <.001 | |
| Follow-up | 11.43 (5.3) | 15.38 (2.3) | 6.17 (2.6) | −7.024 | <.001 |
Note. BMI = body mass index; mTBI = mild traumatic brain injury; QIDS = Quick Inventory of Depressive Symptomatology; PCL-M = PTSD Checklist–Military Version; PTSD = posttraumatic stress disorder.
aPTSD group had PCL-M scores ≥50 at follow-up. bNo-PTSD control group had PCL-M scores ≤25 at follow-up. cMedications included antidepressants, antipsychotics, benzodiazepines, nonbenzodiazepines, narcotics, and prazosin.