|
Multiple gestation
| |
8.5 (7.9–9.1)
|
12.4 (11.5–13.5)
|
11.7 (10.7–12.8)
|
|
Multiparous
| |
1.1 (1.1–1.2)
|
0.4 (0.4–0.4)
|
0.4 (0.4–0.4)
|
|
Gestation period (weeks)
|
< 37
|
1.9 (1.8–2.0)
|
-
|
-
|
| |
≥ 42
|
1.1 (0.9–1.3)
|
2.2 (1.8–2.7)
|
2.4 (1.9–2.9)
|
|
Maternal age (years)
|
< 20
|
0.4 (0.4–0.5)
|
0.6 (0.5–0.6)
|
0.6 (0.5–0.6)
|
| |
≥ 35
|
2.2 (2.1–2.2)
|
1.9 (1.9–2.0)
|
1.9 (1.8–2.0)
|
|
Malpresentation
| |
206.8 (175.4–243.8)
|
468.0 (396.6–552.3)
|
481.2 (404.3–572.8)
|
|
Prolapsed cord
| |
24.5 (9.9–60.7)
|
61.7 (24.4–156.1)
|
107.0 (32.9–347.9)
|
|
Antepartum hemorrhage, abruptio placenta, and previa placenta
| |
35.3 (30.0–41.6)
|
95.6 (81.0–112.8)
|
86.9 (72.5–104.2)
|
|
Previous CS history
| |
100.8 (92.6–109.7)
|
291.0 (266.6–317.7)
|
287.2 (261.6–315.3)
|
|
Insufficient or excessive fetal growth
| |
6.9 (6.0–7.9)
|
13.1 (11.4–15.2)
|
13.0 (11.0–15.2)
|
|
Genital herpes
| |
5.0 (3.0–8.2)
|
10.4 (6.1–17.7)
|
8.0 (4.4–14.5)
|
|
Diabetes mellitus
| |
2.4 (2.1–2.8)
|
3.1 (2.5–3.7)
|
2.8 (2.3–3.5)
|
|
Anemia
| |
2.9 (2.7–3.1)
|
3.6 (3.2–4.0)
|
3.3 (2.9–3.7)
|
|
Cardiac disease
| |
3.2 (2.2–4.6)
|
6.0 (4.0–9.0)
|
5.1 (3.2–8.3)
|
|
Arterial hypertension
| |
2.8 (2.4–3.3)
|
4.4 (3.7–5.3)
|
4.4 (3.6–5.4)
|
|
Eclampsia/preeclampsia
| |
8.2 (7.2–9.4)
|
15.4 (13.4–17.8)
|
14.6 (12.5–17.1)
|
|
Polyhydramnios/oligohydramnios
| |
2.5 (2.1–3.1)
|
3.5 (2.7–4.4)
|
3.7 (2.8–4.8)
|
|
Infection of amniotic cavity
| |
6.5 (5.0–8.6)
|
11.3 (8.5–15.1)
|
11.5 (8.3–16.0)
|
|
Congenital/acquired abnormality of cervix or vagina
| |
9.8 (4.6–20.8)
|
19.8 (8.9–44.0)
|
19.6 (8.7–44.6)
|
|
Premature labor
| |
1.6 (1.5–1.7)
|
1.5 (1.4–1.6)
|
1.6 (1.4–1.7)
|
|
Premature rupture of the membrane
| |
0.8 (0.8–0.9)
|
1.4 (1.3–1.5)
|
1.4 (1.3–1.5)
|
|
Cervical incompetence
| |
1.8 (1.2–2.8)
|
2.8 (1.7–4.6)
|
-
|
