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Demographic data of MDD and control groups.
| MDD (n = 550) | Control (n = 552) | χ2 | p | |
|---|---|---|---|---|
| Sex | 3.553 | 0.059 | ||
| Male | 165 (30.00%) | 195 (35.30%) | ||
| Female | 385 (70.00%) | 357 (64.70%) | ||
| Age | 0.902 | 0.637 | ||
| 16–30 | 111 (20.18%) | 99 (17.93%) | ||
| 31–54 | 277 (50.36%) | 286 (51.81%) | ||
| >54 | 162 (29.46%) | 167 (30.36%) | ||
| Education | 3.317 | 0.190 | ||
| Junior school and below | 288 (52.36%) | 271 (49.09%) | ||
| Senior school and Junior college | 191 (34.73%) | 220 (39.86%) | ||
| College and above | 71 (12.91%) | 61 (11.05%) |
