Copyright ©The Author(s) 2018.
World J Gastroenterol. Aug 7, 2018; 24(29): 3302-3312
Published online Aug 7, 2018. doi: 10.3748/wjg.v24.i29.3302
Table 2 Risk assessment of included studies
Year-AuthorRandom 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, FLHHLLLL
2015-Masoodi, MLLLHLLL
2014-Rakici, HLHHHLUL
2013-Murakami, KLHLHLLL
2012-Zeng, ZUUUULUU
2008-Kilic, ZMLHHHLLU
2007-Bago, PLLLHLLL
2005-Kist, MHHHHLHL
2005- Nista, ECLHHHLLL