Table 1 Maternal and infant characteristics (n=1659)
Characteristic | Â |
|---|---|
Infant | Â |
Male (%) | 48.1 |
Birth weight in g (mean ± SD) | 3594 ± 505 |
Gestational age at birth in wk (mean ± SD) | 40.0 ± 1,2 |
Small-for-gestational-age (%) | 12.4 |
Maternal | Â |
Interpregnancy interval (%) | Â |
< 6 mo | 3.6 |
6-11 mo | 16.7 |
12-17 mo | 16.8 |
18-23 mo | 13.5 |
≥ 24 mo | 49.4 |
Age (%) | Â |
< 25 y | 5.7 |
25-34 y | 61.2 |
≥ 35 y | 33.1 |
Parity (%) | Â |
1 | 74.2 |
2 | 18.9 |
≥3 | 6.9 |
Height in cm (mean ± SD) | 168.5 ± 7.2 |
Prepregnancy BMI in kg/m 2 (mean ± SD) | 23.4 ± 4.1 |
Unintended pregnancy (%) | 7.2 |
Non-spontaneous pregnancy (%) | 1.9 |
Time to pregnancy (%) | Â |
<3 mo | 64.9 |
3-12 mo | 26.4 |
≥ 12 mo | 8.7 |
Started prenatal care (%) | Â |
< 18 wk | 92.1 |
18-23 wk | 6.0 |
≥ 24 wk | 1.9 |
Alcohol consumption (%) | Â |
None | 41.2 |
Yes, but not since pregnancy | 32.5 |
Yes, also during pregnancy | 26.3 |
Smoking (%) | Â |
None | 81.3 |
Yes, but not since pregnancy | 10.2 |
Yes, also during pregnancy | 8.6 |
Psychosocial stressors (%) | Â |
0 | 73.4 |
1 | 16.5 |
≥2 | 10.1 |
Cohabitant status (% living alone) | 9.2 |
Education (%) | Â |
<6 y | 22.3 |
6-10 y | 38.9 |
≥ 11 y | 38.8 |
Country of birth (%) | Â |
Netherlands | 64.0 |
Surinam | 6.1 |
Turkey | 4.5 |
Morocco | 7.5 |
Other non-Western country | 11.6 |
Other Western country | 6.0 |
Country of birth of the mother’s mother (%) |  |
Netherlands | 58.4 |
Surinam | 8.4 |
Turkey | 5.1 |
Morocco | 8.3 |
Other | 19.7 |