Rifaximin versus Nonabsorbable Disaccharides for the Treatment of Hepatic Encephalopathy: A Meta-Analysis

Table 2

Summary of methodological quality of included studies on the basis of review authors’ judgments.

Included studies	Allocation system	Allocation concealment	Patient	Blind; observer	Assessor	Handling of missing data
Paik et al. 2005 [21]	Yes	Yes	Yes	No	NA	Unclear
Festi et al. 1993 [25]	No	No	Yes	No	NA	Unclear
Bucci and Palmieri 1993 [26]	Yes	Yes	Yes	Yes	NA	Unlcear
Massa et al. 1993 [27]	No	Yes	Yes	Yes	NA	Unclear
Mas et al. 2003 [28]	Yes	Yes	Yes	Yes	NA	Unclear
Loguercio et al. 2003 [29]	No	No	Yes	No	NA	Unclear
Fera et al. 1993 [30]	Yes	Yes	Yes	No	NA	Unclear
Song et al. 2000 [31]	Yes	Yes	Yes	No	NA	Unclear

NA: not available.