|
No (N=6,964) |
No (N=6,964) |
Yes (N=1,863) |
Yes (N=1,863) |
No (N=8,502) |
No
(N=8,502) |
Yes (N=332) |
Yes (N=332) |
Maternal age, mean (SD) |
31.4 |
(3.7) |
31.4 |
(3.7) |
31.4 |
(3.7) |
31.6 |
(3.8) |
Maternal country of birth, n (%) |
|
|
|
|
|
|
|
|
The Netherlands |
6,629 |
(95.2) |
1,781 |
(95.6) |
8,096 |
(95.2) |
319 |
(96.1) |
Other |
264 |
(3.8) |
66 |
(3.5) |
321 |
(3.8) |
11 |
(3.3) |
Level of education, n (%) |
|
|
|
|
|
|
|
|
Low/intermediate |
1,629 |
(23.4) |
383 |
(20.6) |
1,920 |
(22.6) |
90 |
(27.1) |
High |
5,278 |
(75.8) |
1,465 |
(78.6) |
6,510 |
(76.6) |
241 |
(72.6) |
Chronic conditions, n (%) |
|
|
|
|
|
|
|
|
Asthma |
398 |
(5.7) |
149 |
(8.0) |
509 |
(6.0) |
34 |
(10.2) |
Chronic hypertension |
19 |
(0.3) |
9 |
(0.5) |
26 |
(0.3) |
2 |
(0.6) |
Depression |
113 |
(1.6) |
24 |
(1.3) |
125 |
(1.5) |
12 |
(3.6) |
Pre-existing diabetes |
16 |
(0.2) |
6 |
(0.3) |
21 |
(0.2) |
1 |
(0.3) |
Pre-pregnancy BMI, mean (SD) |
23.6 |
(4.0) |
24.2 |
(4.5) |
23.6 |
(4.1) |
25.6 |
(5.4) |
Parity, n (%) |
|
|
|
|
|
|
|
|
0 previous deliveries |
3,764 |
(54.0) |
1,059 |
(56.8) |
4,658 |
(54.8) |
176 |
(53.0) |
≥1 previous delivery |
3,179 |
(45.6) |
797 |
(42.8) |
3,818 |
(44.9) |
154 |
(46.4) |
History of preeclampsia, n (%) |
|
|
|
|
|
|
|
|
Yes |
131 |
(1.9) |
36 |
(1.9) |
160 |
(1.9) |
8 |
(2.4) |
No |
6,746 |
(96.9) |
1,813 |
(97.3) |
8,243 |
(97.0) |
323 |
(97.3) |
Smoking during pregnancy, n (%) |
|
|
|
|
|
|
|
|
Yes |
330 |
(4.7) |
114 |
(6.1) |
415 |
(4.9) |
28 |
(8.4) |
No |
6,470 |
(92.9) |
1,709 |
(91.7) |
7,898 |
(92.9) |
299 |
(90.1) |
Alcohol during pregnancy, n (%) |
|
|
|
|
|
|
|
|
Yes |
1,095 |
(15.7) |
292 |
(15.7) |
1,351 |
(15.9) |
37 |
(11.1) |
No |
5,722 |
(82.2) |
1,536 |
(82.4) |
6,981 |
(82.1) |
291 |
(87.7) |
Calcium-containing supplements, n (%) |
|
|
|
|
|
|
|
|
Yes |
4,073 |
(58.5) |
1,143 |
(61.4) |
5,025 |
(59.1) |
194 |
(58.4) |
No |
1,211 |
(17.4) |
266 |
(14.3) |
1,433 |
(16.9) |
48 |
(14.5) |