Table 1.
Means and standard deviations of major study variables of the MDD group and the HC group
| MDD | HC | t/ χ2 | p | |
|---|---|---|---|---|
| (Mean ± SD) | (Mean ± SD) | |||
| Age (years) | 35.34 ± 9.53 | 32.08 ± 7.76 | 3.26 | 0.001 |
| Gender (male/female) | 72/96 | 73/57 | 4.73 | 0.035 |
| Education (years) | 10.29 ± 3.54 | 11.94 ± 3.32 | -4.10 | 0.001 |
| HAMD24 | 31.52 ± 7.40 | 1.39 ± 1.84 | 50.84 | 0.001 |
| HAMA | 18.22 ± 6.25 | 1.13 ± 1.90 | 33.25 | 0.001 |
| Episodes | 2.08 ± 1.34 | — | — | — |
| Onset age (years) | 31.94 ± 10.05 | — | — | — |
| Current history | 4.56 ± 8.86 | — | — | — |
| Total history | 42.60 ± 51.32 | — | — | — |
| Dysfunctional Attitudes | 156.02 ± 28.36 | 124.03 ± 26.47 | 9.94 | <0.001 |
| A | 6.27 ± 2.17 | 6.36 ± 1.26 | -0.46 | 0.65 |
| B | 5.46 ± 2.07 | 6.15 ± 1.89 | -2.97 | <0.001 |
| C | 3.98 ± 1.88 | 5.70 ± 1.82 | -7.90 | <0.001 |
| E | 4.65 ± 1.78 | 5.06 ± 1.42 | -2.23 | 0.03 |
| F | 4.67 ± 2.06 | 6.58 ± 2.08 | -7.91 | <0.001 |
| G | 4.33 ± 1.80 | 5.16 ± 1.71 | -4.05 | <0.001 |
| H | 5.00 ± 1.46 | 6.11 ± 1.41 | -6.58 | <0.001 |
| I | 6.27 ± 1.64 | 6.23 ± 1.57 | 0.21 | 0.84 |
| L | 5.38 ± 1.59 | 3.87 ± 1.73 | 7.85 | <0.001 |
| M | 4.53 ± 1.54 | 4.60 ± 1.50 | -0.35 | 0.73 |
| N | 5.95 ± 1.41 | 5.98 ± 1.29 | -0.20 | 0.84 |
| O | 7.74 ± 1.71 | 5.23 ± 1.99 | 11.67 | <0.001 |
| Q1 | 4.97 ± 1.63 | 4.90 ± 1.67 | 0.37 | 0.71 |
| Q2 | 5.46 ± 1.85 | 5.23 ± 1.51 | 1.22 | 0.22 |
| Q3 | 4.63 ± 1.52 | 5.71 ± 1.32 | -6.44 | <0.001 |
| Q4 | 7.14 ± 1.50 | 4.98 ± 1.85 | 10.87 | <0.001 |
Bold values indicate statistical significance
SD Standard Deviation