Table 3. Characteristics of ALSPAC mothers without depressive symptoms vs. mothers with depressive symptoms included in current analyses(*Children of these mothers form part of the exposed group if SDQ scores are available at 11 years of age.).
| Mothers without depressive symptoms, n (%) | Mothers with depressive symptoms*, n (%) | ||
|---|---|---|---|
| Maternal Age | N(total) = 10,293 | N = 8,991 | N = 1,932 |
| <16–20 | 432 (4.8%) | 137 (7.1%) | |
| 21–26 | 2,625 (29.1%) | 589 (30.0%) | |
| 27–32 | 4,199 (46.7%) | 833 (43.1%) | |
| 33–38 | 1,547 (17.2%) | 325 (16.8%) | |
| 39 - >43 | 188 (2.1%) | 48 (2.4%) | |
| Maternal Education | N(total) = 10,548 | N = 8,707 | N = 1,841 |
| CSE & Vocational | 2,226 (25.6%) | 628 (34.1%) | |
| O Level | 3,143 (36.1%) | 585 (31.8%) | |
| A Level | 2,073 (23.8%) | 401 (21.8%) | |
| Degree | 1,230 (14.1%) | 211 (11.5%) | |
| Missing | 35 (0.4%) | 16 (0.8%) | |
| Marital Status | N(total) = 10,697 | N = 8,820 | N = 1,877 |
| Never Married | 1,364 (15.5%) | 377 (20.1%) | |
| Widowed | 11 (0.1%) | 3 (0.2%) | |
| Divorced | 317 (3.6%) | 107 (5.7%) | |
| Separated | 108 (1.2%) | 50 (2.7%) | |
| 1st Marriage | 6,386 (72.4%) | 1,200 (63.9%) | |
| Marriage 2 or 3 | 569 (6.5%) | 128 (6.8%) | |
| Missing | 65 (0.7%) | 12 (0.6%) | |
| Parity | N(total) = 10,654 | N = 8,793 | N = 1,861 |
| 0 | 4,028 (45.8%) | 704 (37.8%) | |
| 1 | 2,973 (33.8%) | 719 (38.6%) | |
| 2 | 1,232 (14.0%) | 269 (14.6%) | |
| 3–13 | 429 (4.9%) | 129 (6.9%) | |
| Missing | 131 (1.5%) | 40 (2.1%) | |