Age at last menstruation | | | | | | |
<25 years | 32 | 42.7 | 18 | 23.6 | 154 | 26.5 |
25–29 | 25 | 33.3 | 28 | 36.8 | 215 | 36.9 |
30–35 | 13 | 17.3 | 22 | 28.9 | 154 | 26.5 |
>35 years | 5 | 6.7 | 8 | 10.5 | 59 | 10.1 |
Maternal smoking | | | | | | |
No | 27 | 41.5 | 43 | 62.3 | 396 | 74.9 |
1–9 cigarettes/day | 11 | 16.9 | 10 | 13.2 | 92 | 17.4 |
≥10 cigarettes/day | 27 | 41.5 | 16 | 21.1 | 41 | 7.8 |
Maternal parity | | | | | | |
0 births | 20 | 28.2 | 37 | 52.1 | 308 | 53.8 |
1 birth | 29 | 40.8 | 24 | 33.8 | 176 | 30.8 |
2 births | 15 | 21.1 | 3 | 4.2 | 58 | 10.1 |
3 births | 6 | 8.5 | 4 | 5.6 | 18 | 3.1 |
4+ births | 1 | 1.4 | 3 | 4.2 | 12 | 2.0 |
Previous stillbirths or abortions | 10 | 14.3 | 10 | 14.1 | 94 | 16.4 |
Previous induced abortions | 19 | 26.8 | 15 | 20.8 | 135 | 23.5 |
Body mass index >25 kg/m2 | 8 | 13.1 | 17 | 27.0 | 56 | 11.7 |
Ethnic origin Europe (EU) | 71 | 97.2 | 62 | 85.0 | 468 | 85.1 |
Education | | | | | | |
<10 years | 18 | 32.1 | 16 | 28.6 | 69 | 15.9 |
10–12 | 23 | 41.1 | 21 | 37.5 | 151 | 34.9 |
>12 years | 15 | 26.8 | 19 | 33.9 | 213 | 49.2 |
Glucosuria | 9 | 14.1 | 13 | 18.8 | 97 | 16.8 |
Proteinuria | 16 | 24.2 | 12 | 17.4 | 66 | 11.5 |
Abnormally high fundal height | 28 | 45.9 | 27 | 41.5 | 188 | 34.2 |
Abnormally low fundal height | 5 | 8.2 | 8 | 12.3 | 30 | 5.5 |
Male | 52 | 66.7 | 40 | 54.8 | 296 | 50.9 |
Death autumn/winter* | 53 | 69.7 | 41 | 53.9 | 281 | 48.3 |
Preterm birth (<38 weeks) | 10 | 13.3 | 37 | 48.7 | 35 | 6.0 |
Unrelated parents | 78 | 100.0 | 68 | 94.4 | 558 | 96.9 |