Early Prognostic Utility of Gp210 Antibody-Positive Rate in Primary Biliary Cholangitis: A Meta-Analysis

Table 2

The US Agency for Healthcare Research and Quality checklist for quality assessment of one-arm research.

Author and year	Is the case definition adequate?	Representativeness of the cases?	Selection of controls	Definition of controls	Comparability of cases and controls on the basis of the design or analysis	Ascertainment of exposure	Same method of ascertainment for cases and controls	Nonresponse rate
Itoh S. et al., 1998	Yes	Yes	Hospital controls	No description	Yes	No blind status	Yes	No description
Nakamura M. et al., 2005	Yes	Yes	Hospital controls	No description	Yes	No blind status	Yes	No description
Nakamura M. et al., 2007	Yes	Yes	Hospital controls	No description	Yes	No blind status	Yes	No description
Yang J. et al., 2009	Yes	Yes	Hospital controls	No description	Yes	No blind status	Yes	No description
Yang F. et al., 2017	Yes	Yes	Hospital controls	No description	Yes	No blind status	Yes	No description