On the basis of populatio n attributable risks(AR),HBV infection seemed to be the single most relavent caus e of HCC in the study(AR=94.03%),followed by HCV infection(AR=68%),and heavy alcoh ol intake (AR=58.5%).

• HBV感染是肝癌的最主要的相关原因 ；人群归因危险度 (AR)为 94 ；0 3%25 ；其次是HCV感染 ；AR为 6 8%25 ；以及重度饮酒 ；AR为 5 8.；5%25。