Table 1 Maternal and neonatal characteristics of women by region
From: Regional variations in childbirth interventions in the Netherlands: a nationwide explorative study
| Â | GR | FR | DR | OV | FL | GD | UT | NH | ZH | ZL | NB | LB |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
Total n | 19,441 | 22,568 | 15,875 | 42,869 | 17,461 | 71,286 | 52,893 | 105,948 | 139,573 | 11,327 | 84,187 | 31,302 |
Parity, % | ||||||||||||
 Nulliparous | 45.8 | 42.4 | 42.7 | 42.1 | 41.4 | 43.4 | 44.7 | 46.8 | 45.7 | 42.8 | 45.8 | 47.2 |
 Multiparous | 54.2 | 57.6 | 57.3 | 57.9 | 58.6 | 56.6 | 55.3 | 53.2 | 54.3 | 57.2 | 54.2 | 52.8 |
Maternal age, % | ||||||||||||
 < 20 years | 1.9 | 1.5 | 1.6 | 1.2 | 2.2 | 1.2 | 0.8 | 1.0 | 1.5 | 1.6 | 1.0 | 1.6 |
 20–24 years | 12.4 | 11.5 | 11.6 | 10.0 | 13.9 | 10.0 | 7.5 | 8.4 | 11.7 | 15.2 | 8.7 | 10.6 |
 25–29 years | 31.2 | 34.8 | 35.4 | 33.4 | 33.9 | 31.6 | 26.7 | 26.2 | 30.3 | 33.9 | 31.5 | 32.2 |
 30–34 years | 35.4 | 35.1 | 34.2 | 38.0 | 32.3 | 37.5 | 40.6 | 38.2 | 35.6 | 33.1 | 39.8 | 37.8 |
 35–39 years | 16.1 | 14.5 | 14.7 | 14.9 | 14.6 | 16.6 | 20.9 | 21.6 | 17.4 | 13.6 | 16.5 | 15.2 |
 ≥40 years | 2.9 | 2.7 | 2.5 | 2.4 | 3.0 | 3.1 | 3.6 | 4.5 | 3.5 | 2.7 | 2.5 | 2.7 |
Ethnic background, % | ||||||||||||
 Dutch | 85.7 | 90.7 | 89.9 | 86.2 | 65.4 | 85.6 | 77.5 | 67.1 | 65.4 | 87.2 | 80.1 | 82.7 |
 Non-Dutch | 14.3 | 9.3 | 10.1 | 13.8 | 34.6 | 14.4 | 22.5 | 32.9 | 34.6 | 12.8 | 19.9 | 17.3 |
Urbanisation, % | ||||||||||||
 Urban | 18.0 | 4.6 | 0.0 | 2.9 | 0.0 | 3.8 | 23.0 | 39.8 | 41.7 | 0.0 | 9.0 | 2.5 |
 Intermediate | 49.2 | 47.0 | 53.6 | 71.3 | 72.5 | 71.4 | 59.6 | 49.1 | 45.0 | 53.3 | 70.0 | 69.7 |
 Rural | 32.9 | 48.5 | 46.4 | 25.9 | 27.5 | 24.8 | 17.4 | 11.1 | 13.3 | 46.7 | 21.0 | 27.8 |
Socioeconomic status, % | ||||||||||||
 High (p ≥ 75) | 9.3 | 11.8 | 19.4 | 16.9 | 39.2 | 19.1 | 35.7 | 23.5 | 25.5 | 7.4 | 20.0 | 8.7 |
 Medium (p 25–75) | 31.5 | 34.8 | 40.5 | 51.4 | 36.8 | 56.0 | 38.8 | 39.0 | 39.1 | 60.3 | 55.8 | 58.4 |
 Low (p ≤ 25) | 59.2 | 53.4 | 40.0 | 31.7 | 24.1 | 24.9 | 25.4 | 37.5 | 35.4 | 32.2 | 24.1 | 32.9 |
Gestational age (weeks), % | ||||||||||||
 37 + 0–37 + 6 | 8.7 | 8.3 | 9.2 | 8.6 | 8.4 | 6.7 | 5.8 | 6.6 | 7.6 | 6.5 | 7.3 | 8.8 |
 38 + 0–40 + 6 | 71.5 | 71.7 | 72.5 | 72.1 | 73.1 | 71.6 | 71.2 | 72.2 | 72.8 | 71.6 | 72.4 | 73.9 |
 41 + 0–41 + 6 | 17.9 | 18.1 | 16.9 | 17.4 | 16.9 | 19.3 | 20.7 | 19.0 | 18.3 | 19.4 | 18.5 | 16.5 |
 ≥42 | 1.8 | 1.9 | 1.4 | 1.8 | 1.6 | 2.3 | 2.3 | 2.2 | 1.4 | 2.5 | 1.8 | 0.8 |
Birth weight, % | ||||||||||||
 < 2,3rd percentile | 1.7 | 1.4 | 1.4 | 1.5 | 1.8 | 1.6 | 1.7 | 1.8 | 1.9 | 2.0 | 2.0 | 2.1 |
 <10th percentile | 8.0 | 6.8 | 7.3 | 7.4 | 9.5 | 7.8 | 7.9 | 8.4 | 8.9 | 8.8 | 9.3 | 9.7 |
 >90th percentile | 11.3 | 12.9 | 11.9 | 11.0 | 9.8 | 11.2 | 10.6 | 10.3 | 9.7 | 10.0 | 9.0 | 9.0 |
 > 97,7th percentile | 3.0 | 3.5 | 3.4 | 2.9 | 2.4 | 3.0 | 2.7 | 2.7 | 2.5 | 2.4 | 2.3 | 2.4 |