Table 1.
Demographic and clinical characteristics of MDD and HC groups.
| Variable | Patients (n = 162) mean (SD) |
Controls (n = 142) mean (SD) |
T or χ² | P |
|---|---|---|---|---|
| Demographic characteristics | ||||
| Age (years) | 35.1 (9.55) | 34.86 (8.78) | T = 0.23 | .816 |
| Male n (%) | 72 (44.4) | 64 (45.1) | χ² = 0.01 | .913 |
| Female n (%) | 90 (55.6) | 78 (54.9) | ||
| Education (years) | 10.45 (3.41) | 11.01 (3.47) | T = −1.41 | .160 |
| Mood ratings | ||||
| HAM-D | 31.56 (7.28) | 1.39 (1.76) | T = 48.09 | <.001 |
| HAM-A | 18.33 (6.31) | 1.08 (1.58) | T = 39.80 | <.001 |
| Clinical characteristics | ||||
| Age of onset (years) | 31.94 (9.71) | – | ||
| Number of episodes (n) | 2.15 (1.51) | – | ||
| Single n (%) | 64 (39.5) | – | ||
| Recurrent n (%) | 98 (60.5) | – | ||
| Total illness duration (months) | 40.36 (50.64) | – | ||
Bold values indicate statistical significance.
HC,healthy control; MDD,major depressive disorder.