Overall survival was compared for 12 possible prognostic factors, including 7 baseline patient factors (age, sex, presence of ascites, albumin level, total bilirubin level, prothrombin time, and Child-Pugh class) and 5 baseline tumor factors (serum alfa-feto-protein level, multiplicity of tumors, greatest tumor dimension ≤ or >5 cm, portal vein tumor thrombosis and extrahepatic metastasis). Here, F2 is linked to neoplasm.