Table 2.
Maternal characteristics at the 5-week childcare visita
| Never depressed | Previous depression | Recent depression | Total | P-value | |
|---|---|---|---|---|---|
| n (%) | 795 597 (93.6) | 42 754 (5.0) | 11 892 (1.4) | 850 243 | |
|
| |||||
| Year of birth, n (column %) | |||||
| 2000–2004 | 308 532 (38.8) | 9562 (22.4) | 2032 (17.1) | 320 126 | |
| 2005–2008 | 236 869 (29.8) | 13 540 (31.7) | 3867 (32.5) | 254 276 | |
| 2009–2013 | 250 196 (31.4) | 19 652 (46.0) | 5993 (50.4) | 275 841 | <0.001 |
|
| |||||
| Age of mother, mean (SD) | 30.6 (4.8) | 30.5 (5.2) | 31.3 (5.0) | 30.6 (4.9) | <0.001 |
|
| |||||
| Parity, n (column %) | |||||
| 1 | 350 925 (44.1) | 19 912 (46.6) | 5316 (44.7) | 376 153 | |
| 2 | 299 219 (37.6) | 14 021 (32.8) | 4208 (35.4) | 317 448 | |
| 3 | 108 916 (13.7) | 6121 (14.3) | 1657 (13.9) | 116 694 | |
| +4 | 36 537 (4.6) | 2700 (6.3) | 711 (6.0) | 39 948 | <0.001 |
|
| |||||
| Education, n (column %) | |||||
| ≤10 years | 198 891 (25.0) | 17 572 (41.1) | 4170 (35.1) | 220 633 | |
| >10 and ≤15 years | 389 956 (49.0) | 18 051 (42.2) | 5382 (45.3) | 413 389 | |
| >15 years | 142 546 (17.9) | 5613 (13.1) | 1890 (15.9) | 150 049 | |
| Unknownb | 64 204 (8.1) | 1518 (3.6) | 450 (3.8) | 66 172 | <0.001 |
|
| |||||
| Income decile, n (column %) | |||||
| Low | 286 508 (36.0) | 17 498 (40.9) | 4592 (38.6) | 308 598 | |
| Moderate | 352 020 (44.2) | 20 366 (47.6) | 5848 (49.2) | 378 234 | |
| High | 113 798 (14.3) | 4367 (10.2) | 1216 (10.2) | 119 381 | |
| Unknownb | 43 271 (5.4) | 523 (1.2) | 236 (2.0) | 44 030 | <0.001 |
|
| |||||
| Civil status, n (column %) | |||||
| Widow | 500 (0.1) | 40 (0.1) | 9 (0.1) | 549 | |
| Divorced | 14 719 (1.9) | 1325 (3.1) | 363 (3.1) | 16 407 | |
| Married | 127 794 (16.1) | 7142 (16.7) | 2025 (17.0) | 136 961 | |
| Unmarried | 602 013 (75.7) | 33 524 (78.4) | 9198 (77.3) | 644 735 | |
| Unknownb | 50 571 (6.4) | 723 (1.7) | 297 (2.5) | 51591 | <0.001 |
|
| |||||
| Mental comorbidities (Yes), n (column %)c | 2583 (0.3) | 996 (2.3) | 411 (3.5) | 3990 | <0.001 |
a
The covariates for this analysis are measured 5 years before the visit in order to avoid the covariates being intermediate factors. One way Anova (analysis of variance) and Kruskal-Wallis test is used to generate P-values.
b
Unknown represents missing data.
c
Mental comorbidities include drug abuse, alcoholism, eating disorders, schizophrenia, dementia, and bipolar disorder. SD = standard deviation.