From: Better operative outcomes achieved with the prone jackknife vs. lithotomy position during abdominoperineal resection in patients with low rectal cancer
Clinicopathologic factors
HR
95% CI
P value
Gender
Male
1
Female
0.532
0.385–0.976
0.035
Pathologic N stage
N0
N1
4.147
2.377–5.890
0.021
N2
6.738
2.592–18.661
0.002