Characteristics of study participants by BMI (presented as number (%))
| Characteristics (n) | Normal BMI BMI 18.5–24.9 (N=260) | Overweight plus BMI>24.9 (N=224) |
|---|---|---|
| Age at delivery (year; n=481) | ||
| 18–19 | 8 (3.1) | 8 (3.6) |
| 20–25 | 51 (19.8) | 37 (16.6) |
| 26–30 | 70 (27.1) | 66 (29.6) |
| 31–35 | 66 (25.6) | 49 (22) |
| 36–40 | 56 (21.7) | 54 (24.2) |
| ≥40 | 7 (2.7) | 9 (4) |
| Ethnic group (n=448) | ||
| Caucasian/European | 223 (91.4) | 185 (90.7) |
| African/Caribbean | 1 (0.4) | 4 (2) |
| Asian | 10 (4.1) | 8 (4) |
| Other | 10 (4.1) | 7 (3.4) |
| Annual income (n=400) | ||
| £0–£9999 | 18 (8.6) | 24 (12.5) |
| £10 000–£14 999 | 20 (9.5) | 22 (11.4 |
| £15 000–£24 999 | 32 (15.2) | 32 (16.6) |
| £25 000–£34 999 | 30 (14.3) | 22 (11.4) |
| £35 000–£39 999 | 20 (9.5) | 16 (8.8) |
| £40 000–£49 999 | 29 (13.8) | 32 (16.6) |
| £50 000–£99 999 | 45 (21.4) | 29 (15) |
| £100 000+ | 6 (2.9) | 2 (1) |
| Do not know | 10 (4.8) | 13 (6.7) |
| Working status (n=454) | ||
| Full-time | 115 (46.8) | 78 (37.3) |
| Part-time or casual | 48 (19.7) | 63 (30.1) |
| Unemployed | 28 (11.4) | 24 (11.5) |
| Homemaker | 36 (14.6) | 32 (15.3) |
| Student | 9 (3.7) | 3 (1.5) |
| Self-employed | 6 (2.4) | 4 (1.9) |
| Other | 4 (1.6) | 5 (2.4) |
| Parity (n=484) | ||
| 0 | 141 (54.2) | 81 (36.2) |
| 1 | 82 (31.5) | 96 (42.9) |
| 2 | 24 (9.2) | 29 (12.9) |
| ≥3 | 13 (5.1) | 18 (8) |
| Comorbidity within 3 years prior (n=484) | 18 (6.3) | 17 (7.6) |
| Smoker (n=409) | 49 (20.2) | 35 (17.1) |
| Alcohol consumption (n=411) | 89 (36.3) | 86 (41.7) |
| Non-specific psychological distress score* ≥12 (n=449) | 20 (51.3) | 19 (48.7) |
*Based on a Kessler 6 score recorded during pregnancy.