Parameters

Spontaneous delivery

Operative delivery

Cesarean due to obstructed labor

p-Value

Station

−2 ± 0.9

−2.1 ± 0.8

−2.5 ± 0.8

0.02

Transverse diameter (cm)

13.1 ± 1

13 ± 1.1

13.1 ± 1.3

0.78

Obstetric conjugate (cm)

12.8 ± 1.6

12.1 ± 1.3

13.1 ± 1.4

0.30

Intersipnous diameter (cm)

9.4 ± 1.1

9.2 ± 1

8.9 ± 1.2

0.03

Biparietal diameter (cm)

9.5 ± 0.6

9.4 ± 0.5

9.5 ± 0.7

0.90

Occipitofrontal diameter (cm)

11.5 ± 0.8

11.5 ± 1.4

11.4 ± 1

0.36

Inter ilium diameter (cm)

17.6 ± 8.9

17.1 ± 10.3

18 ± 9.4

0.68