Table 1.
Demographic information of post-traumatic stress disorder (PTSD) and healthy controls (HC)
| Variable | PTSD (n = 45) | HC (n = 70) | t or χ2 | pvalue |
|---|---|---|---|---|
| Age (yr) | 40.58 ± 12.99 | 45.47 ± 14.21 | 1.86 | 0.07 |
| Sex | 0.05 | 0.83 | ||
| Male | 15 (33.3) | 22 (31.4) | ||
| Female | 30 (66.7) | 48 (68.6) | ||
| BMI | 22.37 ± 3.12 | 23.10 ± 2.65 | −0.50 | 0.62 |
| Education (yr) | 12.13 ± 3.35 | 14.37 ± 2.94 | 3.77 | 0.00 |
| Duration of illness (yr) | 225.04 ± 192.68 | - | - | - |
| PCL-5 | 48.91 ± 13.15 | 11.54 ± 10.21 | −16.96 | 0.00 |
| CAPS-severity | 39.40 ± 8.57 | 6.32 ± 7.68 | −15.14 | 0.00 |
| CAPS-number of symptoms | 13.33 ± 2.59 | 2.10 ± 2.91 | −14.83 | 0.00 |
| Brain volume (mm3) | ||||
| TIV | 1,500.85 ± 133.35 | 1,525.32 ± 148.34 | 0.90 | 0.37 |
Values are presented as mean ± standard deviation or number (%).
BMI, body mass index; PCL-5, Post-traumatic Stress Disorder Checklist-5; CAPS, Clinician-Administered PTSD Scale for the Diagnostic and Statistical Manual of Mental disorders 5th Edition; TIV, total intracranial volume.