Submucosal Injection Solution for Endoscopic Resection in Gastrointestinal Tract: A Traditional and Network Meta-Analysis

Table 2

Quality assessment of included randomized controlled trials.

Study	State	Randomization	Allocation concealment	Blinding	Comparable baseline	>80% follow-up	Freedom of selective reporting	Level
Lee et al., 2006 [10]	Korea	Y, central controlled randomization	Y	Y, double blind	Y	Y	Y	A
Hurlstone et al., 2008 [11]	UK	Y, random sequence	Y	Y, double blind	Y	Y	Y	A
Katsinelos et al., 2008 [12]	Greece	Y, random number	Y	Y, double blind	Y	Y	Y	A
Yamamoto et al., 2008 [13]	Japan	Y, center controlled randomization	Unclear	Unclear	Y	Y	Y	B
Kizu et al., 2010 [14]	—	M	Unclear	Unclear	Y	Y	Unclear	C
Moss et al., 2010 [15]	Australia	Y, random sequence	Y	Y, double blind	Y	Y	Y	A
Fasoulas et al., 2012 [16]	Greece	Y, block balance random sequence	Y	Y, double blind	Y	Y	Y	A
Kishihara et al., 2012 [17]	Japan	M	Y	Unclear	Y	Y	Y	B
Yoshida et al., 2012 [18]	Japan	M	Unclear	N	Y	Y	Y	C
Kim et al., 2013 [19]	Korea	Y, random sequence	Y	Y, double blind	Y	Y	Y	A
Sumiyama et al., 2014 [20]	Japan	Y, computer generated random sequence	Y	Y, double blind	Y	Y	Y	A

M, the method was mentioned, but there was not a detailed description; Y, the method was reported with detailed description; Unclear, no relevant information was found in the study.