Brief Article
Copyright ©2009 The WJG Press and Baishideng.
World J Gastroenterol. Nov 14, 2009; 15(42): 5352-5359
Published online Nov 14, 2009. doi: 10.3748/wjg.15.5352
Table 2 The quality of the included randomized trials
StudyTruly randomConcealed allocationBaseline featuresEligibility criteriaBlinding assessmentLoss to follow-upIntention to treatStudy quality
Csendes et al[63], 2002YesUnclearYesYesUnclearYesNoFair
Toge et al[6], 1985UnclearUnclearNoNoUnclearUnclearUnclearPoor
Yu et al[64], 2006YesUnclearYesYesUnclearYesUnclearFair