Table 2 Association between previous caesarean delivery and maternal outcomes in the subsequent pregnancy

PIH

99

1.6%

131

2.4%

1.54 (1.18–2.00)

1.38 (1.04–1.82)^a

75

4.1%

2.66 (1.96–3.60)

2.20 (1.59–3.05)^d

PE

84

1.3%

90

1.7%

1.24 (0.92–1.67)

1.22 (0.88–1.69)^a

34

1.9%

1.39 (0.93–2.08)

1.24 (0.79–1.94)^d

GDM

705

11.3%

736

13.6%

1.23 (1.10–1.38)

1.15 (1.02–1.29)^a

371

20.3%

2.00 (1.74–2.30)

1.82 (1.57–2.11)^d

Gestational anaemia

455

7.3%

458

8.4%

1.17 (1.03–1.34)

1.13 (0.98–1.30)

166

9.1%

1.27 (1.06–1.53)

1.27 (1.05–1.55)^d

Gestational thyroid disease

256

4.1%

223

4.1%

1.01 (0.84–1.20)

1.03 (0.85–1.24)

64

3.5%

0.85 (0.64–1.12)

0.86 (0.65–1.16)^d

ICP

29

0.5%

43

0.8%

1.71 (1.07–2.75)

1.72 (1.04–2.84)

14

0.8%

1.65 (0.87–3.14)

1.65 (0.84–3.23)^d

PROM

1217

19.5%

445

8.2%

0.37 (0.33–0.41)

0.34 (0.30–0.39)

140

7.7%

0.34 (0.29–0.41)

0.32 (0.26–0.39)^d

fetal distress

493

7.9%

159

2.9%

0.35 (0.29–0.42)

0.33 (0.27–0.40)

55

3.0%

0.36 (0.27–0.48)

0.34 (0.25–0.46)^d

 I degree

58

0.9%

50

0.9%

0.91 (0.62–1.33)

0.94 (0.63–1.40)

17

0.9%

0.91 (0.53–1.57)

0.97 (0.56–1.70)^d

 II degree

236

3.8%

114

2.1%

0.51 (0.41–0.64)

0.49 (0.39–0.62)

33

1.8%

0.44 (0.30–0.63)

0.39 (0.26–0.57)^d

 III degree

472

7.6%

67

1.2%

0.15 (0.12–0.19)

0.15 (0.11–0.19)

17

0.9%

0.11 (0.07–0.18)

0.11 (0.07–0.18)^d

 Oligohydramnios

65

1.0%

67

1.2%

1.20 (0.85–1.69)

1.15 (0.81–1.64)

25

1.4%

1.33 (0.84–2.12)

1.37 (0.85–2.21)^d

 Polyhydramnios

39

0.6%

82

1.5%

2.45 (1.67–3.59)

2.50 (1.69–3.69)

27

1.5%

2.39 (1.46–3.92)

2.60 (1.57–4.31)^d

Placental abruption

19

0.3%

7

0.1%

0.42 (0.18–1.01)

0.51 (0.21–1.25)

4

0.2%

0.72 (0.24–2.11)

0.92 (0.30–2.80)^d

Placenta previa

66

1.1%

124

2.3%

2.19 (1.62–2.96)

2.11 (1.52–2.94)

62

3.4%

3.29 (2.31–4.67)

3.18 (2.15–4.71)^d

Placenta accreta

53

0.8%

104

1.9%

2.28 (1.64–3.18)

2.11 (1.47–3.04)

45

2.5%

2.95 (1.97–4.40)

2.75 (1.75–4.31)^d

Rupture of uterus

0

0.0%

7

0.1%

/

/

4

0.2%

/

/

APH

61

1.0%

59

1.1%

1.11 (0.78–1.60)

0.96 (0.64–1.43)

25

1.4%

1.41 (0.88–2.25)

1.13 (0.66–1.93)^d

FGR

82

1.3%

70

1.3%

0.98 (0.71–1.35)

0.93 (0.65–1.33)

22

1.2%

0.92 (0.57–1.47)

0.89 (0.53–1.51)^d

Abnormal fetal position

193

3.1%

194

3.6%

1.16 (0.95–1.42)

1.09 (0.88–1.35)

47

2.6%

0.83 (0.60–1.14)

0.77 (0.55–1.09)^d

Dystocia

197

3.2%

196

3.6%

1.15 (0.94–1.41)

1.09 (0.88–1.34)

46

2.5%

0.79 (0.57–1.10)

0.73 (0.52–1.04)^d

Antepartum fever

55

0.9%

27

0.5%

0.56 (0.36–0.89)

0.54 (0.33–0.89)

9

0.5%

0.56 (0.28–1.13)

0.60 (0.29–1.24)^d

 Caesarean section

823

13.2%

5278

97.3%

263.28 (217.98–318.01)

364.21 (294.74–450.06)^b

1795

98.2%

375.49 (261.30–539.58)

694.16 (468.45–1028.62)^e

 Instrumental delivery

80

1.3%

14

0.3%

7.18 (3.97–13.01)

8.30 (4.41–15.60)^b

1

0.1%

2.15 (0.29–15.96)

6.40 (0.84–48.80)^e

PPH

119

1.9%

107

2.0%

1.04 (0.80–1.35)

0.69 (0.42–1.14)^c

43

2.4%

1.24 (0.87–1.76)

0.54 (0.30–0.97)^f

Puerperal infection

16

0.3%

15

0.3%

1.08 (0.53–2.19)

0.99 (0.35–2.83)^c

4

0.2%

0.85 (0.29–2.56)

0.50 (0.12–2.19)^f