P value

Odds Ratio

95.0% C.I.

Maternal age

0.893

0.990

0.850

1.153

Cervical length

0.026

2.273

1.102

4.688

GA at TVS

0.239

1.292

0.843

1.980

GA at onset/inductin of labour

0.796

0.958

0.690

1.330

Mode of induction (induced)

0.175

2.633

0.650

10.672

Induction to delivery interval

0.031

1.051

1.005

1.100