| Total | EPDS | P * | |
---|---|---|---|---|
n (%) | < 10 (n = 2259) | ≥10 (n = 287) | ||
 | n (%) | n (%) | ||
Age (years) a | Â | Â | Â | 0.50 |
  < =25 | 471 (20.8) | 421 (89.4) | 50 (10.6) |  |
 26–30 | 1314 (59.2) | 1161 (88.4) | 153 (11.6) |  |
 31–35 | 594 (26.3) | 522 (87.9) | 72 (12.1) |  |
  > =36 | 150 (6.6) | 138 (92) | 12 (8) |  |
BMI (kg/m2) b | Â | Â | Â | 0.65 |
  < 18.5 | 379 (15.0) | 330 (87.1) | 49 (12.9) |  |
 18.5–23.9 | 1726 (68.3) | 1534 (88.9) | 192 (11.1) |  |
 24.0–27.9 | 333 (13.1) | 298 (89.5) | 35 (10.5) |  |
  ≥ 28 | 91 (3.6) | 83 (91.2) | 8 (8.8) |  |
Ethnicity c | Â | Â | Â | 0.53 |
 Han | 2520 (99.0) | 2237 (88.8) | 283 (11.2) |  |
 Others | 26 (1.0) | 22 (84.6) | 4 (15.4) |  |
Economic status d, j |  |  |  | < 0.001 |
 Difficult/careful/loan | 306 (12.3) | 248 (81.0) | 58 (19.0) |  |
 Fair | 1747 (70.0) | 1561 (89.4) | 186 (10.6) |  |
 Good | 444 (17.7) | 411 (92.6) | 33 (7.4) |  |
Education (years) e | Â | Â | Â | 0.40 |
  ≤ 12 | 258 (10.2) | 232 (89.9) | 26 (10.1) |  |
 12–15 | 1970 (77.5) | 1753 (89.0) | 217 (11.0) |  |
  > 15 | 313 (12.3) | 271 (86.6) | 42 (13.4) |  |
Parity | Â | Â | Â | 0.048 |
 Nulliparous | 2138 (84.0) | 1886 (88.2) | 252 (11.8) |  |
 Parous | 408 (16.0) | 373 (91.4) | 35 (8.6) |  |
Health status f, j |  |  |  | < 0.001 |
 Fair/poor/very poor | 578 (22.8) | 467 (80.8) | 111 (19.2) |  |
 Good | 1530 (60.3) | 1382 (90.3) | 148 (9.7) |  |
 Very good | 429 (16.9) | 401 (93.5) | 28 (6.5) |  |
Sleep quality g, j |  |  |  | < 0.001 |
 Fair/poor/very poor | 1292 (50.8) | 1093 (84.6) | 199 (15.4) |  |
 Good/very good | 1250 (49.2) | 1162 (93.0) | 88 (7.0) |  |
Smoking h | Â | Â | Â | 0.23 |
 No | 2530 (99.7) | 2247 (88.8) | 283 (11.2) |  |
 Yes | 8 (0.3) | 6 (75) | 2 (25) |  |
Alcohol use i | Â | Â | Â | 0.003 |
 No | 2311 (90.9) | 2066 (89.4) | 245 (10.6) |  |
 Yes | 231 (9.1) | 189 (81.8) | 42 (18.2) |  |
Social support |  |  |  | < 0.001 |
 Low | 279 (11.0) | 223 (79.9) | 56 (20.1) |  |
 High | 2267 (89.0) | 2036 (89.8) | 231 (10.2) |  |