Maternal characteristics by neighbourhood income and unemployment/social security benefit quartiles in Amsterdam
| Median income | Unemployment/social security benefit | |||||||
| Q1 (poorest) (n = 2043) | Q2 (n = 1947) | Q3 (n = 2103) | Q4 (richest) (n = 1790) | Q1 (lowest) (n = 1881) | Q2 (n = 1869) | Q3 (n = 1975) | Q4 (highest) (n = 2158) | |
| Age (years) | ||||||||
| <20 | 4.8 | 3.5 | 1.0 | 0.4 | 1.0 | 2.4 | 2.5 | 3.8 |
| 20–9 | 51.6 | 39.9 | 23.3 | 16.6 | 21.1 | 32.6 | 36.2 | 41.5 |
| 30–9 | 40.5 | 53.2 | 72.7 | 79.4 | 74.5 | 62.0 | 58.5 | 50.9 |
| 40–9 | 3.1 | 3.4 | 3.1 | 3.5 | 3.4 | 3.0 | 2.8 | 3.8 |
| Education (years)* | ||||||||
| 0–5 | 44.5 | 28.4 | 11.4 | 7.3 | 11.4 | 20.8 | 26.0 | 33.0 |
| 6–10 | 40.1 | 41.3 | 37.5 | 32.9 | 39.0 | 37.5 | 38.3 | 37.5 |
| >10 | 15.4 | 30.3 | 51.1 | 59.8 | 49.6 | 41.7 | 35.7 | 29.5 |
| Ethnicity (%) | ||||||||
| Dutch | 34.7 | 59.3 | 77.0 | 79.1 | 76.7 | 65.5 | 60.8 | 47.7 |
| Suriname | 11.8 | 7.9 | 2.1 | 0.9 | 1.6 | 3.1 | 6.8 | 10.1 |
| Turks | 8.8 | 5.3 | 1.8 | 0.4 | 1.5 | 5.0 | 4.8 | 5.3 |
| Moroccan | 16.4 | 8.4 | 3.2 | 1.2 | 2.7 | 8.7 | 8.5 | 9.6 |
| Other | 28.3 | 19.8 | 15.8 | 18.4 | 17.5 | 17.7 | 19.1 | 27.3 |
| Parity (%) | ||||||||
| Primiparous | 47.5 | 54.2 | 61.3 | 56.9 | 52.7 | 55.7 | 55.8 | 55.5 |
| Multiparous | 52.5 | 45.8 | 38.7 | 43.1 | 47.3 | 44.3 | 44.2 | 44.5 |
| Current smoking, yes (%) | 10.6 | 12.2 | 9.6 | 5.2 | 6.9 | 9.7 | 11.4 | 9.9 |
| Pre-pregnancy BMI | ||||||||
| BMI ⩽25 kg/m2 | 63.6 | 72.2 | 84.3 | 85.4 | 81.4 | 78.0 | 74.9 | 71.6 |
| BMI ⩾25 kg/m2 | 25.0 | 20.5 | 12.4 | 11.2 | 14.5 | 16.5 | 18.3 | 19.9 |
| BMI ⩾30 kg/m2 | 11.4 | 7.3 | 3.3 | 3.4 | 4.0 | 5.5 | 6.8 | 8.6 |
*After primary school.