Table 1. Baseline characteristics.
| Major depressive disorder | Healthy controls (n = 102) |
p value |
|||
|---|---|---|---|---|---|
| Characteristic | Mild (n = 20) |
Moderate (n = 75) |
Severe (n = 22) |
||
| Sex (male/female) |
(7/13) | (24/51) | (7/15) | (32/70) | 0.99 |
| Age (years) | 35.85 ± 12.99 | 39.2 ± 14.14 | 35.55 ± 10.48 | 37.05 ± 11.30 | 0.49 |
| BMI (kg/m2) | 21.55 ± 1.93 | 21.89 ± 2.89 | 20.60 ± 2.52 | 23.37 ± 3.12 | 0.58 |
| Education (years) |
11.60 ± 3.12 | 11.89 ± 3.10 | 11.77 ± 2.81 | 0.93 | |
| Disease course (months) | 26.35 ± 9.06 | 25.63 ± 16.64 | 26.91 ± 10.85 | 0.86 | |
| HAMD score (points) | 12.70 ± 2.72 | 20.75 ± 1.72 | 26.82 ± 3.30 | <0.01* | |
| HAMA score (points) | 12.75 ± 4.17 | 19.11 ± 2.70 | 18.82 ± 4.19 | <0.01* | |
Data are presented as mean ± standard deviation unless otherwise indicated. BMI, body mass index; HAMA, Hamilton Anxiety Rating Scale; HAMD, Hamilton Depression Rating Scale