Objective To investigate the prevalence of and risk factors for biliary tract disease in Shanxi Province in order to provide a theoretical basis for the formulation of appropriate preventive measures. Methods Random cluster sampling of villages (neighborhood committees) was performed. Three neighborhood committees from the City of Taiyuan and 2 villages from Shenchi County were selected as survey sites to investigate the prevalence of and risk factors for biliary tract disease in residents of these areas. R...