| |
Germany
|
Middle and Northern Europe,
|
Mediterranean
|
Eastern Europe
|
Middle East,
|
Asia
|
p value*
|
|---|
| | |
North America
| | |
North Africa
| | |
|---|
|
Number of births
|
2,166,005
|
37,854
|
85,874
|
138,217
|
164,341
|
30,773
| |
|
Single status
| | | | | | | |
|
No
|
76.7
|
83.6
|
86.1
|
85.4
|
90.1
|
83.9
|
< 0.0001
|
|
Yes
|
14.9
|
9.0
|
6.8
|
8.4
|
4.0
|
8.5
| |
|
Missing
|
8.4
|
7.4
|
7.0
|
6.1
|
5.9
|
7.5
| |
|
Social status
| | | | | | | |
|
Low
|
31.8
|
45.4
|
59.8
|
56.1
|
71.4
|
62.0
|
< 0.0001
|
|
Middle
|
37.8
|
24.1
|
16.3
|
21.6
|
9.6
|
13.4
| |
|
High
|
13.5
|
12.4
|
4.4
|
5.2
|
2.2
|
4.4
| |
|
Missing
|
16.9
|
18.1
|
19.6
|
17.1
|
16.8
|
20.3
| |
|
Maternal age (years)
| | | | | | | |
|
< 18
|
0.7
|
0.3
|
0.6
|
0.5
|
0.3
|
0.2
|
< 0.0001
|
|
18-29
|
43.4
|
42.3
|
55.8
|
60.6
|
59.2
|
45.0
| |
|
30-34
|
31.2
|
32.3
|
28.2
|
26.2
|
25.8
|
30.8
| |
|
35-39
|
20.3
|
20.3
|
12.7
|
10.4
|
11.8
|
19.4
| |
|
≥ 40
|
4.4
|
4.8
|
2.6
|
2.4
|
2.8
|
4.7
| |
|
Maternal smoking (during pregnancy)
| | | | | | | |
|
No
|
72.9
|
72.7
|
67.7
|
71.0
|
73.3
|
79.3
|
< 0.0001
|
|
Yes
|
10.9
|
6.2
|
11.2
|
7.3
|
9.2
|
1.8
| |
|
Missing
|
16.2
|
21.1
|
21.2
|
21.7
|
17.4
|
18.9
| |
|
Parity
| | | | | | | |
|
0
|
42.5
|
35.9
|
32.9
|
35.7
|
29.3
|
36.0
|
< 0.0001
|
|
1
|
32.1
|
33.4
|
32.0
|
32.1
|
29.4
|
33.7
| |
|
≥ 2
|
25.4
|
30.7
|
35.0
|
32.2
|
41.3
|
30.3
| |
|
Multiple births
| | | | | | | |
|
Singletons
|
96.6
|
96.7
|
96.9
|
97.3
|
97.0
|
97.8
|
< 0.0001
|
|
Twins or more
|
3.4
|
3.3
|
3.1
|
2.7
|
3.0
|
2.2
| |
|
Gestational age (weeks) & birth weight (g)
| | | | | | | |
|
< 37 & < 2500
|
4.5
|
4.1
|
4.1
|
3.8
|
4.3
|
4.2
|
< 0.0001
|
|
≥ 37 & < 2500
|
2.7
|
2.3
|
2.6
|
2.0
|
2.6
|
2.9
| |
|
< 37 & ≥ 2500
|
1.7
|
1.6
|
1.5
|
1.6
|
1.6
|
1.5
| |
|
≥ 37 & ≥ 2500
|
91.1
|
92.0
|
91.7
|
92.6
|
91.5
|
91.4
| |
|
Number of antenatal visits
| | | | | | | |
|
0-04
|
1.4
|
2.6
|
2.8
|
3.1
|
2.2
|
3.3
|
< 0.0001
|
|
5-07
|
4.3
|
6.9
|
7.9
|
7.8
|
7.8
|
9.0
| |
|
8-11
|
43.1
|
42.3
|
47.2
|
47.0
|
50.0
|
49.4
| |
|
≥ 12
|
43.1
|
37.9
|
33.0
|
34.7
|
32.9
|
29.4
| |
|
Missing
|
8.1
|
10.3
|
9.2
|
7.4
|
7.2
|
8.9
| |
|
First antenatal visit (gestational week)
| | | | | | | |
|
< 9.
|
46.5
|
40.3
|
42.2
|
39.7
|
44.9
|
35.8
|
< 0.0001
|
|
9.-12.
|
37.5
|
34.7
|
35.6
|
36.9
|
36.0
|
38.0
| |
|
13.-16.
|
5.7
|
7.7
|
7.7
|
8.8
|
7.6
|
9.5
| |
|
≥ 17.
|
3.1
|
8.0
|
5.9
|
8.2
|
5.0
|
9.3
| |
|
Missing
|
7.2
|
9.3
|
8.6
|
6.4
|
6.5
|
7.4
| |
|
Congenital anomalies
| | | | | | | |
|
No
|
99.0
|
98.9
|
98.8
|
98.9
|
99.0
|
99.0
|
< 0.001
|
|
Yes
|
1.0
|
1.1
|
1.2
|
1.1
|
1.0
|
1.0
| |
- * p value for a chi-square test
