Brief Articles
Copyright ©2009 The WJG Press and Baishideng.
World J Gastroenterol. Jan 21, 2009; 15(3): 366-368
Published online Jan 21, 2009. doi: 10.3748/wjg.15.366
Table 1 Baseline characteristics of study and placebo groups
Study groupPlacebo groupP
Demographic characteristics
Number3836
Sex ratio (M/F)15/2316/200.665
Mean age (yr)64.29 ± 13.4063.36 ± 15.130.781
Etiology0.972
Choledocholithiasis (cases)3331
Others(cases)55
Cholangiectasis (cases)26200.254
Treatment0.841
Choledochostomy2626
Stent intervention66
Sphincterotomy and drainage64
ERCP operating time (min)36.89 ± 20.5140.00 ± 24.730.558
Table 2 Complications occurred in study and placebo groups
GroupPEPHyperamylasemiaNormal
Study3827
Placebo91314
P0.0120.037