Childbirth lane

Adolescents

Witnesses

P

OR

IC

Eff

%

Eff

%

Low track

247

82.33%

253

84.33%

0.5

0.87

[0.6 - 1.4]

Caesarean section

53

17.67%

47

15.67%

0.5

1.15

[0.7 - 1.8]

Low track

Sucker

51

20.65%

21

8.3%

0.00008

2.87

[1.6 - 5.2]

Normal

196

79.35%

232

91.7%

0.00008

0.35

[0.19 - 0.6]

Indication

Mechanical dystocia

26

49.05%

10

21.28%

0.0039

Basin generally shrunk

6

11.32%

1

2.13%

Failed work probation

5

9.43%

4

8.5%

Disproportion foeto-pelvic

3

5.66%

1

2.13%

Vicious presentation

5

9.43%

2

4.26%

Pre-uterine rupture syndrome

2

3.77%

-

-

Lack of commitment

5

9.43%

2

4.26%

Dynamic dystocia

9

16.98%

13

27.66%

0.19

Stationary dilation

5

9.43%

7

14.89%

Trigger failure

4

7.55%

6

12.77%

Seat/Primipare

4

7.55%

6

12.77%

0.39

Acute fetal suffering

9

16.98%

11

23.4%

0.42

Funicular anomaly

7

13.20%

8

17.02%

Hretro-placental ematoma

2

3.77%

3

6.38%

Placenta prævia

2

3.77%

3

6.38%

0.55

Severe pre-eclampsia

3

5.66%

4

8.5%

0.39