Chinese Classical Formula Sijunzi Decoction and Chronic Atrophic Gastritis: Evidence for Treatment Approach?

Table 3

Risk of bias assessment based on the Cochrane handbook.

Included studies	Random sequence generation	Concealment of allocation	Blinding of participants and personnel	Blinding of outcome assessment	Incomplete; outcome data	Selective reporting	Other bias	Risk of bias
Song et al., 2009 [30]	?	?	—	?	+	?	+	High
Hu, 2011 [31]	?	?	—	?	?	?	+	High
Sun et al., 2012 [32]	?	?	—	?	?	?	+	High
Li, 2013 [33]	?	?	—	?	?	?	?	High
Zhang, 2016 [34]	?	?	—	?	?	?	+	High
Shen, 2016 [35]	+	?	—	?	?	?	+	High

+: low risk of bias; —: high risk of bias; ?: unclear risk of bias.