Regression coefficient
Adjusted OR (95% CI)
Assigned Scores
Age at delivery (y)
< 35 1.00 (reference) 0
≥ 35 0.064 1.066 (1.005-1.132) 1.0
History of once CS
No 1.00 (reference) 0
Yes 0.919 2.506 (1.398-4.492) 1.0
Operating duration (min)
< 120 1.00 (reference) 0
≥ 120 0.015 1.015(1.002-1.027) 1.0
B-Lynch suture
No 1.00 (reference) 0
Yes 1.444 4.238 (1.423-12.621) 2.0
PROM
No 1.00 (reference) 0
Yes 0.758 2.134 (1.238-3.676) 1.0
MSAF
No 1.00 (reference) 0
Yes 1.447 4.250 (1.768-10.216) 2.0
Cervical dilatation 4-10 cm
No 1.00 (reference) 0
Yes 1.258 3.523 (1.584-7.833) 2.0
Retroflexed uterine
No 1.00 (reference) 0
Yes 2.383 10.836 (6.863-17.108) 4.0