Maternal characteristics | Birth characteristics | ||
---|---|---|---|
Age (years) | 31.0 (± 5.1) | Gender (% girls) | 50.1% |
Pre-pregnancy BMI (kg/m2) | 23.0 (± 3.6) | Gestational age (weeks) | 39.8 (± 1.7) |
Educational level (years after primary school) | 9.1 (± 3.9) | % Preterm birth (<37 weeks) | 4.9% |
% Primipara | 55.6% | Birthweight (g) | 3452 (± 550) |
Ethnicity | Â | % Small for gestational age | 11.8% |
% Dutch | 69.2% | Â | Â |
% Surinamese | 5.0% | Â | Â |
% Turkish | 3.4% | Â | Â |
% Moroccan | 6.1% | Â | Â |
% Other non-western | 9.4% | Â | Â |
% Other western | 6.9% | Â | Â |
Smoking during pregnancy | Â | Â | Â |
% Not smoking | 90.3% | Â | Â |
% 0-5 cigarettes/day | 6.3% | Â | Â |
% 6 or more cigarettes/day | 3.4% | Â | Â |
% Consuming alcohol | 22.9% | Â | Â |