Table 2 Comparison of socioeconomic status between the depressive and nondepressive groups
|  | Total | Depression | χ2 | P value | |
|---|---|---|---|---|---|
No | Yes | ||||
Expenditure quintiles, n (%) | Â | Â | Â | 3.86 | 0.426 |
 1 (Poorest) | 140 (18.7) | 67 (47.9) | 73 (52.1) |  |  |
 2 (Poorer) | 152 (20.3) | 76 (50.0) | 76 (50.0) |  |  |
 3 (Middle) | 146 (19.5) | 68 (46.6) | 78 (53.4) |  |  |
 4 (Rich) | 151 (20.2) | 86 (57.0) | 65 (43.0) |  |  |
 5 (Richest) | 160 (21.4) | 82 (51.2) | 78 (48.8) |  |  |
Education, n (%) | Â | Â | Â | 10.96 | 0.004** |
 Primary school or below | 536 (71.6) | 276 (51.5) | 260 (48.5) |  |  |
 Middle school | 137 (18.3) | 55 (40.1) | 82 (59.9) |  |  |
 High school or above | 76 (10.1) | 48 (63.2) | 28 (36.8) |  |  |