Incidence and efficacy of strategies for preventing hepatic encephalopathy following transjugular intrahepatic portosystemic shunt: A meta-analysis

Table 1 Quality assessment for the Cochrane collaboration’s tool for assessing randomized controlled trials

Ref.	Country	Selection bias	Performance bias	Measuring bias	Attrition bias	Publication bias	Other bias
Riggio et al[35], 2005	Italy	Low risk	Low risk	Low risk	Low risk	Low risk	Low risk
Bass et al[36], 2010	America	Low risk	Low risk	Medium risk	Low risk	Low risk	Low risk
Bai et al[37], 2014	China	Low risk	Low risk	Low risk	Medium risk	Low risk	Low risk
Bureau et al[7], 2021	France	Low risk	Low risk	Low risk	Medium risk	Low risk	Low risk