Table 1.
Demographic characteristics of subjects.
| Variables | MDD (n = 185) | HC (n = 64) | p-value | NWE (n = 62) | HC (n = 64) | p-value | WE (n = 123) | HC (n = 64) | p-value | |
|---|---|---|---|---|---|---|---|---|---|---|
| Gender (male/female)a | 73/112 | 29/35 | 0.41 | 29/33 | 29/35 | 0.87 | 44/79 | 29/35 | 0.21 | |
| Family history (with/without) | 44/141 | 0/64 | – | 13/49 | 0/64 | – | 31/92 | 0/64 | – | |
| Marriage (married/not married)a | 109/76 | 37/27 | 0.88 | 31/31 | 37/27 | 0.38 | 78/45 | 37/27 | 0.46 | |
| Age (years)b | 33.38 ± 10.32 | 32.97 ± 9.78 | 0.78 | 31.47 ± 10.05 | 32.97 ± 9.78 | 0.40 | 34.34 ± 10.36 | 32.97 ± 9.78 | 0.38 | |
| Education (years)b | 13.48 ± 3.06 | 15.30 ± 2.86 | 0.00 | 13.65 ± 2.80 | 15.30 ± 2.86 | 0.00 | 13.39 ± 3.19 | 15.30 ± 2.86 | 0.00 |
MDD, major depression disorder; NWE, non-waking early; WE, waking early; HC, healthy control.aThe p-value was obtained by two-tailed chi-square test.bData is presented as mean ± standard deviation. The p-value was obtained by two-tailed independent t-test.