Table 1. Baseline Characteristics According to Diagnosis of Depression and Use of Antidepressants (AD).
| Depression & no AD use | Use of AD (+/−depression) | No depression & no AD use | |
| All pregnancies (n) | 1843 | 22061 | 981415 |
| Maternal age (mean) | 29.1 (sd = 6.3) | 30.9 (sd = 5.9) | 30.2 (sd = 5.5) |
| Maternal age, missing (n) | 0 (0.0%) | 0 (0.0%) | 47 (0.0%) |
| Cohabitation (n) | |||
| Yes | 1014 (55.0%) | 13579 (61.6%) | 754610 (76.9%) |
| No | 821 (44.5%) | 8382 (38.0%) | 211605 (21.6%) |
| Missing | 8 (0.4%) | 100 (0.5%) | 15200 (1.5%) |
| Income (n) | |||
| [0,20[ % | 538 (29.2%) | 4700 (21.3%) | 194560 (19.8%) |
| [20–40[ % | 518 (28.1%) | 5535 (25.1%) | 193749 (19.7%) |
| [40,60[ % | 375 (20.3%) | 4923 (22.3%) | 194503 (19.8%) |
| [60–80[ % | 225 (12.2%) | 3790 (17.2%) | 195785 (19.9%) |
| [80,100] % | 185 (10.0%) | 3111 (14.1%) | 196505 (20.0%) |
| Missing | 2 (0.1%) | 2 (0.0%) | 6313 (0.6%) |
| Education (n) | |||
| <10 years | 396 (21.5%) | 4028 (18.3%) | 105486 (10.7%) |
| 10–12 years | 777 (42.2%) | 8369 (37.9%) | 300635 (30.6%) |
| >12 years | 625 (33.9%) | 9171 (41.6%) | 540257 (55.0%) |
| Missing | 45 (2.4%) | 493 (2.2%) | 35037 (3.6%) |
| Co-medication (n) | |||
| Antipsychotics | 69 (3.7%) | 1539 (7.0%) | 1556 (0.2%) |
| Antiepileptics | 26 (1.4%) | 758 (3.4%) | 3938 (0.4%) |
| Insuline | 6 (0.3%) | 188 (0.9%) | 4465 (0.5%) |
| Any medication | 1275 (69.2%) | 22061 (100.0%) | 607603 (61.9%) |
| Co-morbidity (n) | |||
| History of severe mental disorder | 76 (4.1%) | 648 (2.9%) | 2012 (0.2%) |
| History of drug abuse | 136 (7.4%) | 1073 (4.9%) | 4395 (0.4%) |
| History of any psychiatric disorder | 1843 (100.0%) | 9997 (45.3%) | 51613 (5.3%) |