Table 2 Characteristics of case and control in-hospital deliveries included in the study and where contractions and a vaginal delivery had started (i.e. those not performed as planned CD)

Vaginal or emergency caesarean delivery (ECD)

Case N = 16

(%) (100)

Control N = 23

(%) (100)

  Yes

5

(31)

7

(30)

  No

11

(69)

16

(70)

  Vaginal

10

(63)

14

(61)

  ECD

6

(37)

9

(39)

  Yes

15

(94)

22

(96)

  No

1^a

(6)

1^a

(4)

  Frank breech

5

(31)

8

(35)

  Complete breech

2

(13)

3

(13)

  Footling

0

(0)

1

(4)

  Not documented ^b

9

(56)

11

(48)

  Yes

10

(63)

11

(48)

  No

6

(37)

12

(52)

  Yes

16

(100)

23

(100)

  No

0

(0)

0

(0)

  Yes

14

(88)

14

(61)

  No

2^d

(12)

4^d

(17)

  Not documented

0

(0)

5

(22)

  External

7

(44)

12

(52)

  Internal

8

(50)

11

(48)

  Not done

1^e

(6)

0

(0)

Vaginal delivery

Case N = 10

(%) (100)

Control N = 14

(%) (100)

  Epidural

8

(80)

11

(79)

  No

2^f

(20)

3^f

(21)

  Yes

8

(80)

10

(71)

  No

2^g

(20)

4^h

(29)

  Yes

7

(70)

5

(36)

  No

3

(30)

9

(64)

  Yes

2

(20)

1

(7)

  No

8ⁱ

(80)

13ⁱ

(93)