Table 1.
Demographic and clinical data of MDDs and healthy controls.
| Variables | MDD patients (N = 23) |
Healthy controls
(N = 27) |
Test statistic | p value |
|---|---|---|---|---|
| Gender (M/F) | 7/16 | 9/18 | χ2 = 0.0480 | 0.8267 |
| Education, years (SD) | 13.7 (1.75) | 13.6 (1.80) | T = 0.1181 | 0.9065 |
| Age, years (SD) | 30.7 (8.04) | 29.7 (5.71) | T = 0.5020 | 0.6180 |
| Age of onset, years (SD) | 28.9 (7.30) | – | – | – |
| Duration of illness, years (SD) | 1.7 (1.07) | – | – | – |
| Number of episodes (SD) | 1.2 (0.41) | – | – | – |
| First/recurrent episode | 18/5 | – | – | – |
| HAMD-17 scores (SD) | 23.8 (3.4) | 3.4 (1.1) | T = 29.7523 | <0.001 |
HAMD, Hamilton Depression Rating Scale. Each value is expressed as mean (standard deviation).