| Characteristics | Sample with PTSD | Statistics | ||
| Controls (n = 1268) | Cases (n = 702) | χ2 | p | |
| n (%) | n (%) | |||
| Gender | ||||
| Female | 735 (58.0) | 446 (63.5) | 5.83 | 0.016* |
| Male | 533 (42.0) | 256 (36.5) | ||
| Age (yrs.) | ||||
| ≤28 | 279 (22.0) | 177 (25.2) | 12.75 | 0.005** |
| 29 - 37 | 296 (23.3) | 181 (25.8) | ||
| 38 - 48 | 346 (27.3) | 202 (28.8) | ||
| ≥49 | 347 (27.4) | 142 (20.2) | ||
| Mean = 39.84, SD = 13.85 yrs. | ||||
| Marital Status | ||||
| single | 173 (13.6) | 74 (10.5) | 5.024 | 0.081 |
| married | 975 (76.9) | 569 (81.1) | ||
| divorced/widowed | 120 (9.5) | 59 (8.4) | ||
| Educational Status | ||||
| illiterate | 27 (2.1) | 10 (1.4) | 2.86 | 0.581 |
| elementary school | 810 (63.9) | 470 (67.0) | ||
| primary school | 207 (16.3) | 111 (15.8) | ||
| secondary school | 178 (14.1) | 89 (12.7) | ||
| academic degree | 46 (3.6) | 22 (3.1) | ||