Table 3.
Participant characteristics
| White British | Minority ethnic | All | ||
|---|---|---|---|---|
| N | 1,251 | 983 | 2,234 | |
| Age at recruitment, mean (SD) | 25.9 (6.0) | 27.9 (5.6) | 26.8 (5.9) | |
| Parity at recruitment, n (%) | First child | 614 (49.1) | 373 (38.0) | 987 (44.2) |
| 1 | 369 (29.5) | 230 (23.4) | 599 (26.8) | |
| 2–3 | 225 (18.0) | 295 (30.0) | 520 (23.3) | |
| 4+ | 43 (3.4) | 85 (8.7) | 128 (5.7) | |
| Further pregnancy in 12 months postnatal period, n (%) | No | 1,149 (91.9) | 869 (88.4) | 2,018 (90.3) |
| Yes | 102 (8.2) | 114 (11.6) | 216 (9.7) | |
| Ethnic group, n (%) | White British | 1,251 (100) | - | 1,251 (56.0) |
| Pakistani | - | 749 (76.2) | 749 (33.5) | |
| Mixed | - | 64 (6.5) | 64 (2.9) | |
| Indian | - | 44 (4.5) | 44 (2.0) | |
| White non-British | - | 32 (3.3) | 32 (1.4) | |
| Black | - | 27 (2.8) | 27 (1.2) | |
| Bangladeshi | - | 26 (2.6) | 26 (1.2) | |
| Other | - | 41 (4.2) | 41 (1.8) | |
| Country of birth and age at migration, n (%) | Born in UK | 1,233 (98.6) | 491 (50.0) | 1,724 (77.2) |
| Immigrated before age 16 | 13 (1.0) | 132 (13.4) | 145 (6.5) | |
| Immigrated 16 or older | 2 (0.2) | 347 (35.3) | 349 (15.6) | |
| Missing | 3 (0.2) | 13 (1.3) | 16 (0.7) | |
| Language used during recruitment, n (%) | English | 1,250 (99.9) | 751 (76.3) | 2001 (89.6) |
| Other language | 0 | 224 (22.8) | 224 (10.0) | |
| Missing | 1 (0.1) | 8 (0.8) | 9 (0.4) | |
| Marital/cohabitation status at recruitment, n (%) | Married & living together | 328 (26.2) | 791 (80.5) | 1,119 (50.1) |
| Cohabiting | 503 (40.2) | 41 (4.2) | 544 (24.4) | |
| Not living with a partner | 419 (33.5) | 151 (15.4) | 570 (25.5) | |
| Missing | 1 (0.1) | 0 | 1 (0.4) | |
| Index of Multiple Deprivation (2010) national rank at recruitment, n (%) | Most deprived | 673 (53.8) | 751 (76.4) | 1,424 (63.7) |
| 2 | 253 (20.2) | 146 (14.9) | 399 (17.9) | |
| 3 | 220 (17.6) | 74 (7.5) | 294 (13.2) | |
| 4 | 75 (6.0) | 4 (0.4) | 79 (3.5) | |
| Least deprived | 30 (2.4) | 8 (0.8) | 38 (1.7) |