Fourth-generation quinolones in the treatment of Helicobacter pylori infection: A meta-analysis

Table 2 Risk assessment of included studies

Year-Author	Random sequence generation (selection bias)	Allocation concealment (selection bias)	Blinding of participants and personnel (performance bias)	Blinding of outcome assessment (detection bias)	Incomplete outcome data (attrition bias)	Selective reporting (reporting bias)	Other bias
2017-Mansour Ghanaei, F	L	H	H	L	L	L	L
2015-Masoodi, M	L	L	L	H	L	L	L
2014-Rakici, H	L	H	H	H	L	U	L
2013-Murakami, K	L	H	L	H	L	L	L
2012-Zeng, Z	U	U	U	U	L	U	U
2009-Lu, NH	U	U	U	U	L	U	U
2008-Kilic, ZM	L	H	H	H	L	L	U
2007-Bago, P	L	L	L	H	L	L	L
2005-Kist, M	H	H	H	H	L	H	L
2005- Nista, EC	L	H	H	H	L	L	L

L: Low risk of bias; H: High risk of bias; U: Unclear risk of bias.