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Table 3 Adverse maternal and foetal outcomes by age, parity and number of previous caesarean sections among women in China

From: The incidence, risk factors and maternal and foetal outcomes of uterine rupture during different birth policy periods: an observational study in China

 

Maternal near miss

Stillbirth

Number (%)

Weighted rate, per 100 birthsa

Crude odds ratioa

Adjusted odds ratioa,b

Number (%)

Weighted rate, per 100 birthsa

Crude odds ratioa

Adjusted odds ratioa,b

Without uterine rupture

5130 (94.87)

0.05

1

1

92,413 (99.73)

1.01

1

1

With uterine rupture

276 (5.13)

2.35

48.12 (33.44–69.24)

17.90 (11.81–27.13)

250 (0.27)

2.12

2.10 (1.40–3.15)

4.10 (3.19–5.26)

With uterine rupture

Maternal agec

  < 24

28 (10.14)

2.74

1

1

37 (14.80)

3.27

1

1

 24–29

74 (26.81)

2.06

0.75 (0.47–1.19)

0.87 (0.52–1.46)

77 (30.80)

2.15

0.66 (0.42–1.03)

1.19 (0.76–1.87)

 30–34

90 (32.61)

2.00

0.73 (0.43–1.22)

0.84 (0.49–1.46)

73 (29.20)

1.70

0.52 (0.31–0.85)

1.24 (0.79–1.95)

  ≥ 35

71 (25.72)

2.78

1.01 (0.61–1.70)

1.00 (0.57–1.72)

50 (20.00)

1.83

0.56 (0.31–1.01)

1.09 (0.65–1.81)

 Missing

13 (4.71)

8.34

3.05 (1.47–6.30)

1.64 (0.74–3.62)

13 (5.20)

8.98

2.74 (1.33–5.67)

2.61 (1.27–5.34)

Parityd

 0

43 (15.58)

4.56

1

1

43 (17.20)

4.66

1

1

 1

151 (54.71)

1.69

0.37 (0.22–0.63)

1.42 (0.75–2.68)

135 (54.00)

1.47

0.32 (0.17–0.60)

1.09 (0.58–2.05)

 2

63 (22.83)

3.82

0.84 (0.50–1.41)

3.31 (1.62–6.77)

54 (21.60)

3.53

0.76 (0.40–1.44)

2.15 (1.09–4.27)

  ≥ 3

19 (6.88)

10.71

2.35 (1.25–4.41)

4.73 (2.04–10.93)

18 (7.20)

9.36

2.01 (0.88–4.60)

3.21 (1.54–6.65)

 Missing

0 (0.00)

0

–

–

0 (0.00)

0

–

–

Previous caesarean sectionse

 0

95 (34.42)

6.77

2.74 (1.63–4.58)

4.68 (2.50–8.76)

92 (36.80)

6.42

2.84 (1.61–4.99)

4.47 (2.58–7.74)

 1

147 (53.26)

1.64

0.66 (0.41–1.09)

2.18 (1.30–3.65)

127 (50.80)

1.46

0.64 (0.40–1.02)

2.62 (1.54–4.56)

  ≥ 2

32 (11.59)

2.48

1

1

31 (12.40)

2.26

1

1

 Missing

2 (0.72)

1.63

0.66 (0.07–5.98)

9.17 (1.23–67.55)

0 (0.00)

0

–

–

  1. aWeighted for the sampling distribution of the population covered by the Chinese National Maternal Near Miss Surveillance System
  2. bAdjusted for the clustering of births within hospitals; region; hospital level; maternal sociodemographic characteristics (maternal age, parity, previous caesarean section, education level, marital status, and number of antenatal care visits); and maternal obstetric characteristics (foetal presentation, delivery methods, foetal sex, and foetal weight)
  3. cWe did not adjust for maternal age in the different age groups
  4. dWe did not adjust for parity in the different parity groups
  5. eWe did not adjust for previous caesarean sections in different groups of previous caesarean section
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