Several risk assessment scoring systems have been proposed to assess the therapeutic response and predict long term prognosis in ursodeoxycholic acid (UDCA)-treated primary biliary cholangitis (PBC) patients, in order to risk stratify PBC patients and guide their management. However there scoring systems have not been fully validated in Chinese population. This study is going to compare the prognostic ability of these criteria, validate the overseas scoring systems, develop and validate a new scoring system in a cohort of Chinese PBC patients.