Table 2.
Sociodemographic characteristics of the study participants born between 1973 and 1982 and who had and had not become mothers
| Cohort 1, 1973–1977 | Cohort 2, 1978–1982 | |||||
|---|---|---|---|---|---|---|
| MDD, n (%) | P | MDD, n (%) | P | |||
| No | Yes | No | Yes | |||
| First-generation mothers | ||||||
| Parity | ||||||
| Primi | 99 875 (43.8) | 6 897 (43.4) | 0.431 | 84 916 (40.9) | 6 518 (40.0) | 0.017 |
| Multi | 128 398 (56.2) | 8 983 (56.6) | 122 662 (59.1) | 9 796 (60.0) | ||
| Educational level | ||||||
| Elementary | 48 883 (22.1) | 3 671 (23.6) | <0.001 | 34 662 (17.2) | 3 125 (19.3) | <0.001 |
| High school | 107 754 (48.8) | 7 695 (49.4) | 98 966 (49.1) | 7 949 (49.2) | ||
| Graduate/postgraduate | 64 067 (29.0) | 4 221 (27.1) | 68 091 (33.8) | 5 091 (31.5) | ||
| Origin | ||||||
| Nordic | 218 608 (95.8) | 15 323 (95.9) | 0.353 | 195 971 (94.4) | 15 484 (94.9) | 0.007 |
| Non-Nordic | 9 665 (4.2) | 648 (4.1) | 11 607 (5.6) | 830 (5.1) | ||
| Civil status | ||||||
| Married | 186 430 (84.3) | 12 269 (79.7) | <0.001 | 173 795 (84.6) | 13 064 (80.8) | <0.001 |
| Single | 17 055 (7.7) | 1 428 (9.3) | 20 335 (9.9) | 1 858 (11.5) | ||
| Divorced/widowed | 17 699 (8.0) | 1 706 (11.1) | 11 315 (5.5) | 1 244 (7.7) | ||
| Age when gave birth, years | ||||||
| 13–19 | 15 628 (6.8) | 1 489 (9.4) | <0.001 | 9 327 (4.5) | 1 042 (6.4) | <0.001 |
| 20–26 | 108 536 (47.5) | 7 468 (47.0) | 86 882 (41.9) | 6 813 (41.8) | ||
| 26–33 | 86 429 (37.9) | 5 647 (35.6) | 87 063 (41.9) | 6 418 (39.3) | ||
| ≥34 | 17 680 (7.7) | 1 276 (8.0) | 24 306 (11.7) | 2 041 (12.5) | ||
| Second-generation women | ||||||
| Educational level | ||||||
| Elementary | 9 684 (4.4) | 1 783 (11.3) | <0.001 | 11 832 (5.9) | 2 371 (14.6) | <0.001 |
| High school | 86 961 (39.2) | 6 786 (42.8) | 69 736 (34.7) | 6 411 (39.5) | ||
| Graduate/postgraduate | 125 313 (56.5) | 7 269 (45.9) | 119 373 (59.4) | 7 439 (45.9) | ||
| Civil status | ||||||
| Married | 120 399 (52.7) | 7 217 (45.4) | <0.001 | 82 510 (39.7) | 5 568 (34.1) | <0.001 |
| Unmarried | 104 731 (45.9) | 8 205 (51.7) | 123 681 (59.6) | 10 499 (64.4) | ||
| Divorced/widowed | 3 142 (1.4) | 458 (2.9) | 1 387 (0.7) | 247 (1.5) | ||
| Childbirth | ||||||
| No | 47 555 (20.8) | 4 163 (26.2) | <0.001 | 70 415 (33.9) | 6 359 (39.0) | <0.001 |
| Yes | 180 718 (79.2) | 11 717 (73.8) | 137 163 (66.1) | 9 955 (61.0) | ||
| First-generation mother diagnosed with depressiona | ||||||
| Yes | 15 665 (6.9) | 2 230 (14.0) | <0.001 | 15 041 (7.2) | 2 505 (15.4) | <0.001 |
| No | 21 2608 (93.1) | 13 650 (86.0) | 192 537 (92.8) | 13 809 (84.6) | ||
| Age when gave birth, years | ||||||
| 13–19 | 3 071 (1.8) | 571 (5.2) | <0.001 | 2 111 (1.8) | 444 (5.1) | <0.001 |
| 20–26 | 36 830 (22.0) | 3 245 (29.8) | 33 361 (28.7) | 3 326 (38.0) | ||
| 26–33 | 93 162 (55.6) | 4 982 (45.8) | 79 541 (68.3) | 4 901 (56.0) | ||
| ≥34 | 34 471 (20.6) | 2 086 (19.2) | 1 407 (1.2) | 77 (0.9) | ||
| Parity | ||||||
| Primi | 91 734 (54.8) | 6 372 (58.5) | <0.001 | 75 360 (64.7) | 5 714 (65.3) | 0.268 |
| Multi | 75 800 (45.2) | 4 512 (41.5) | 41 060 (35.3) | 3 034 (34.7) | ||
MDD, major depressive disorder.
a.
This number does not add up to the number presented in Table 1 since each first-generation woman may have had more than one child.