Meta-Analysis
Copyright ©2013 Baishideng Publishing Group Co.
World J Gastroenterol. Apr 7, 2013; 19(13): 2104-2109
Published online Apr 7, 2013. doi: 10.3748/wjg.v19.i13.2104
Table 4 Quality assessment of the randomized controlled trails included based on the Cochrane Risk of Bias Tool
Ref.RandomizationAllocation concealmentBlindWithdrawal and dropoutPresence of selective reporting bias
Schardey et al[7]Without detailsEnvelopeDouble-blindWell reportedUnclear
Farran et al[8]Well reportedEnvelopeDouble-blindWell reportedNo
Imamura et al[9]Well reportedEnvelopeNoWell reportedNo
Mohri et al[10]Well reportedWithout detailsNoWell reportedUnclear