From: Analysis of risk factors for anastomotic leakage after lower rectal Cancer resection, including drain type: a retrospective single-center study
Method
Category
n
OR
95% CI
P value
Unadjusted
Open
97
1
Closed
2.161
0.811
5.76
0.124
IPTW
96
6.315
3.008
13.256
< 0.001
Matching
32
5
0.492
50.831
0.174