Variable Adj-HR (95% CI) p
Use of adhesion barrier 3.25 (1.03-10.24) 0.045*
Labor before OP 0.85 (0.33-2.19) 0.742
MR before OP 0.41 (0.15-1.16) 0.094
Emergency OP 0.71 (0.27-1.86) 0.488
OP time (min)# 1.02 (0.98-1.05) 0.335
Blood loss≧500 c.c. 1.11 (0.39-3.18 0.935
BMI≧30 kg/m2 0.98 (0.31-3.05) 0.97
Diabetes mellitus 2.42 (0.70-8.33) 0.162
HTN or preeclampsia 0.59 (0.09-3.74) 0.572