Table 2 Comparison of maternal and fetal factors between women with normal vaginal delivery after induction of labor and those who were candidate for Cesarean section. Analysis of the mean difference of cervical length, Bishop Score and fetal head-pubis symphysis distance was performed with multivariate analysis with adjustment for body mass index

Age (years)

-

25.66 (4.74)

-

24.47 (4.0)

0.19

Initial BMI (kg/m²)

-

23.07 (3.26)

-

24.91 (3.57)

0.04*

BMI at the time of IOL (kg/m²)

-

28.07 (3.46)

-

29.78 (3.81)

0.02*

Fetus weight (gr)

-

3378.9 (306.9)

-

3274.53 (483.1)

0.19

Fetus gender

male

24 (42.1 %)

-

22 (51.2 %)

-

0.24

female

33 (57.9 %)

-

21 (48.8 %)

-

Cervical length (mm)

-

19.49 (0.12)

-

22.08 (7.11)

0.03*

Bishop Score

-

4.63 (1.55)

-

3.93 (1.60)

0.01*

Fetal head-pubis symphysis distance

-

+3.00 (2.5)

-

−7.2 (0.66)

0.01*

The fetus entry angle

-

90.10 (9.18)

-

85.04 (11.0)

0.05

Fetus occiput position

Anterior

21 (36.8 %)

-

12 (28 %)

-

0.41

Transverse

27 (47.4 %)

-

20 (46.5 %)

-

Posterior

9 (15.8 %)

-

11 (25.5 %)