Table 1.
Participant characteristics.
| PTSD | Controls | Responders | Non-responders | |
|---|---|---|---|---|
| (n = 40) | (n = 40) | (n = 27) | (n = 13) | |
| Age, mean (SD) | 40.6 (11.3) | 39.4 (12.1) | 41.5 (15.3) | 38.8 (8.2) |
| Male, n (%) | 21 (52.5) | 18 (45) | 13 (48.1) | 8 (61.5) |
| Time since trauma, months, mean (SD) | 16.7 (13.9) | — | 18.4 (15.1) | 13.3 (10.1) |
| Type of trauma, n (%) | ||||
| Childhood abuse | 4 (10) | — | 4 (14.8) | 0 (0) |
| Motor vehicle accident | 8 (20) | — | 5 (18.5) | 3 (23.1) |
| Police-related trauma | 13 (32.5) | — | 8 (29.6) | 5 (38.5) |
| Assault | 15 (37.5) | — | 10 (37) | 5 (38.5) |
| Prescribed SSRI, n (%) | 16 (40) | — | 11 (40.7) | 5 (38.5) |
| Major depressive disorder, n (%) | 15 (37.5) | — | 9 (33.3) | 6 (46.2) |
| Social phobia n (%) | 1 (2.5) | — | 0 (0) | 1 (7.7) |
| Panic disorder, n (%) | 7 (17.5) | — | 5 (18.5) | 2 (15.4) |
| Agoraphobia, n (%) | 14 (35) | — | 10 (37) | 4 (30.8) |
| Generalised anxiety disorder, n (%) | 8 (20) | — | 6 (22.2) | 2 (15.4) |
| Obsessive compulsive disorder, n (%) | 2 (5) | — | 2 (7.4) | 0 (0) |
| Baseline CAPS severity, mean (SD) | 71.8 (17.6) | — | 72.6 (19.9) | 70.2 (12.2) |
| Baseline Fear severity | 39.9 (9.5) | — | 39.9 (9.5) | 39.9 (9.7) |
| Baseline dysphoria severity | 31.3 (10.7 | — | 31.8 (12.3) | 30.2 (6.2) |
| DASS Depression, mean (SD) | 10.9 (5.2) | — | 10.3 (5.5) | 12.2 (4.4) |
| DASS anxiety mean (SD)* | 8.1 (4.4) | — | 7.3 (4.8) | 9.2 (2.3) |
| Post-treatment CAPS severity, mean (SD)* | 28.1 (20.0) | — | 19.0 (14.5) | 47 (16.5) |
| Post-treatment fear severity* | 13.8 (11.3) | — | 8.7 (7.6) | 24.5 (10.5) |
| Post-treatment dysphoria severity* | 14.1 (10.7) | — | 10.1 (8.3) | 22.2 (10.7) |
Asterisks mark significant differences between treatment responders and non-responders (p < 0.05).