Table 4 Subgroup analysis of successful ECV, vaginal delivery and cesarean delivery among different types of anesthesia

Successful ECV

 General anesthesia

8

19.9

1.16

1.00-1.34

0.052

 Inhalation anesthesia

3

0

1.00

0.84-1.19

0.244

 Intravenous anesthesia

5

17.6

1.27

1.05-1.54

0.005

 Regional anesthesia

9

37.8

1.65

1.38-1.98

<0.001

 Spinal anesthesia

7

71.0

1.48

1.17-1.89

0.003

 Epidural anesthesia

2

0

1.91

1.36-2.68

0.005

 Total

17

59.0

1.37

1.19-1.58

<0.001

Vaginal delivery

 General anesthesia

6

54.9

1.15

0.95-1.40

0.072

 Inhalation anesthesia

1

NA

1.32

0.91-1.92

0.083

 Intravenous anesthesia

5

54.3

1.10

0.88-1.38

0.261

 Regional anesthesia

6

81.0

1.32

0.98-1.80

0.062

 Spinal anesthesia

4

80.5

1.12

0.83-1.52

0.362

 Epidural anesthesia

2

53.0

2.20

1.20-4.03

<0.001

 Total

12

74.0

1.23

1.03-1.47

<0.001

Cesarean delivery

 General anesthesia

7

25.9

0.92

0.77-1.11

0.227

 Inhalation anesthesia

2

0

0.87

0.69-1.10

0.327

 Intravenous anesthesia

5

44.2

1.02

0.76-1.38

0.242

 Regional anesthesia

8

76.8

0.65

0.43-0.97

0.005

 Spinal anesthesia

6

88.0

0.62

0.34-1.14

0.12

 Epidural anesthesia

2

53.9

0.56

0.36-0.86

<0.001

 Total

15

82.0

0.69

0.53-0.91

0.008