Table 1.
Demographic and clinical characteristics of study groups.
| HCs | TCs | PTSD | |||
|---|---|---|---|---|---|
| 16 | 27 | 19 | |||
| N | M (s.d.) or n (%) | M (s.d.) or n (%) | M (s.d.) or n (%) | Test of difference | Pairwise comparisons |
| Age | 29.37 (8.16) | 45.78 (13.90) | 42.58 (13.03) | F(2,59) = 9.14, P = 0.001 | HC < TC, PTSD |
| Male sex | 9 (56.25%) | 25 (92.6%) | 10 (52.63%) | χ2(2) = 10.91, P = 0.004 | TC > HC, PTSD |
| Veteran (yes) | 0 (0%) | 24 | 11 | χ2(2) = 32.31, P = 0.001 | |
| White race/ethnicity | 10 (62.5%) | 22 (81.5%) | 16 (84.2%) | χ2(2) = 3.66, P = 0.16 NS | |
| Body mass index | 25.76 (4.88) | 29.74 (6.04) | 30.133 (5.79) | F(2,59) = 3.17, P = 0.049 | HC < TC, PTSD |
| Indices of criteria: A lifetime trauma | |||||
| Age at first trauma | N/A | n = 21 16.52 (7.1) | n = 10 14.3 (7.96) | T(16) = 0.75,p = 0.46 NS | |
| Age at presenting trauma | N/A | n = 24 29.4 (9.37) | n = 18 22.65 (14.6) | T(25) = 1.59, p = 0.12 NS | |
| Number of traumas | 0 | n = 24 5.29 (3.3) | n = 11 27.64 (32.5) | T(10) = 2.27, p < 0.045 | |
| Index traumatic event (n) | 24 | 18 | |||
| Military trauma | 0 | 20 | 9 | ||
| Physical assault | 0 | 1 | 9 | ||
| Motor vehicle accident | 0 | 2 | 0 | ||
| Witnessed suicide | 0 | 1 | 0 | ||
| Total number of current psychiatric diagnoses (not including PTSD) | 0 | n = 24 0.42 (0.58) | N = 19 2 (1.41) | ||
| CAPS-5 score | — | 8.72 (6.91) | 38.42 (9.34) | T(29) = 11.26, p < 0.001 | PTSD > TC |
| Injected mass | 13.71 (3.85) | 14.22 (3.34) | 12.05 (4.83) | F(2,59) = 1.85, P = 0.17 NS | |