Patient and tumor characteristics are described in Table 1 . The mean operative time was 25.3 min in the extraperitoneal group, which was higher than that in the intraperitoneal group (14.7 min), but the difference did not reach statistical significance ( P = 0.062).
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A study of laparoscopic extraperitoneal sigmoid colostomy after abdomino-perineal resection for rectal cancer.
1
0.0620
0.0620