Retrospective Study
Copyright ©The Author(s) 2015.
World J Gastroenterol. Dec 28, 2015; 21(48): 13532-13541
Published online Dec 28, 2015. doi: 10.3748/wjg.v21.i48.13532
Table 6 Postoperative analgesics and pain scores
LRR (n = 492)ORR (n = 424)χ2P value
Analgesic usage95.31< 0.001
No299121
PCIA152273
Short-acting drug4130
Post-op pain degree21.43< 0.001
Mild263193
Medium213186
Severe1645