All women and a fetus/neonate born ≥22 weeks
|
Maternal outcomes
|
N = 90,506
|
N = 3939
|
N = 1476
|
N = 1671
|
Placenta previa
|
489
|
0.5
|
22
|
0.6
|
36
|
2.4
|
30
|
1.8
|
Placental abruption
|
382
|
0.4
|
19
|
0.5
|
8
|
0.5
|
19
|
1.2
|
MAP
|
172
|
0.2
|
9
|
0.2
|
17
|
1.2
|
24
|
1.5
|
Gestational diabetes
|
2304
|
2.6
|
138
|
3.5
|
76
|
5.2
|
80
|
4.8
|
PIH
|
2632
|
2.9
|
177
|
4.5
|
101
|
6.9
|
107
|
6.5
|
Cesarean section
|
16,433
|
18.5
|
933
|
24.2
|
563
|
38.6
|
617
|
37.8
|
Blood transfusion
|
377
|
0.4
|
20
|
0.5
|
36
|
2.4
|
38
|
2.3
|
ICU admission
|
105
|
0.1
|
8
|
0.2
|
7
|
0.5
|
15
|
0.9
|
Maternal death
|
10
|
0
|
0
|
0
|
0
|
0
|
0
|
0
|
Fetal/neonatal outcomes
|
N = 89,576
|
N = 4067
|
N = 1518
|
N = 1699
|
Stillbirth
|
230
|
0.3
|
17
|
0.4
|
10
|
0.7
|
5
|
0.3
|
Preterm birth < 37 w
|
4768
|
5.3
|
423
|
10.4
|
184
|
12.1
|
181
|
10.7
|
Low birth weight < 2500 g
|
7980
|
8.9
|
651
|
16.0
|
243
|
16.0
|
245
|
14.4
|
Women with a singleton pregnancy and singleton born ≥22 weeks
|
Maternal outcomes
|
N = 88,873
|
N = 3702
|
N = 1407
|
N = 1586
|
Placenta previa
|
486
|
0.5
|
20
|
0.5
|
34
|
2.4
|
28
|
1.8
|
Placental abruption
|
380
|
0.4
|
18
|
0.5
|
8
|
0.6
|
19
|
1.2
|
MAP
|
172
|
0.2
|
8
|
0.2
|
17
|
1.2
|
24
|
1.5
|
Gestational diabetes
|
2271
|
2.6
|
132
|
3.6
|
72
|
5.1
|
75
|
4.7
|
PIH
|
2573
|
2.9
|
165
|
4.5
|
93
|
6.6
|
102
|
6.4
|
Cesarean section
|
15,912
|
18.0
|
780
|
21.2
|
509
|
36.5
|
558
|
35.6
|
Blood transfusion
|
368
|
0.4
|
16
|
0.4
|
33
|
2.4
|
37
|
2.3
|
ICU admission
|
97
|
0.1
|
5
|
0.1
|
7
|
0.5
|
12
|
0.8
|
Maternal death
|
10
|
0
|
0
|
0
|
0
|
0
|
0
|
0
|
Fetal/neonatal outcomes
|
N = 88,337
|
N = 3682
|
N = 1393
|
N = 1570
|
Stillbirth
|
216
|
0.2
|
8
|
0.2
|
8
|
0.6
|
4
|
0.3
|
Preterm birth
|
4153
|
4.7
|
211
|
5.7
|
120
|
8.6
|
119
|
7.6
|
Low birth weight < 2500 g
|
7141
|
8.1
|
373
|
10.1
|
159
|
11.4
|
159
|
10.1
|
Women with multiple pregnancies and multiples born ≥22 weeks
|
Maternal outcomes
|
N = 625
|
N = 189
|
N = 63
|
N = 66
|
Placenta previa
|
3
|
0.5
|
1
|
0.5
|
2
|
3.2
|
2
|
3.1
|
Placental abruption
|
2
|
0.3
|
1
|
0.5
|
0
|
0
|
0
|
0
|
MAP
|
0
|
0
|
1
|
0.5
|
0
|
0
|
0
|
0
|
Gestational diabetes
|
31
|
5.1
|
6
|
3.2
|
4
|
6.3
|
5
|
7.8
|
PIH
|
57
|
9.4
|
12
|
6.5
|
8
|
12.7
|
5
|
7.8
|
Cesarean section
|
518
|
85.8
|
151
|
81.2
|
54
|
87.1
|
59
|
92.2
|
Blood transfusion
|
9
|
1.5
|
3
|
1.6
|
3
|
4.8
|
1
|
1.6
|
ICU admission
|
8
|
1.3
|
3
|
1.6
|
0
|
0
|
3
|
4.7
|
Maternal death
|
0
|
0
|
0
|
0
|
0
|
0
|
0
|
0
|
Fetal/neonatal outcomes
|
N = 1209
|
N = 383
|
N = 125
|
N = 129
|
Stillbirth
|
13
|
1.1
|
9
|
2.3
|
2
|
1.6
|
1
|
0.8
|
Preterm birth
|
613
|
50.7
|
212
|
55.4
|
64
|
51.2
|
62
|
48.1
|
Low birth weight < 2500 g
|
838
|
69.3
|
278
|
72.8
|
84
|
67.2
|
86
|
66.7
|