Plus-minus values are means ± SD. HCV: hepatitis C virus; HBV: hepatitis C virus; HCC: hepatocellular carcinoma; AIH: autoimmune hepatitis; ALT: alanine aminotransferase; AST: aspartate aminotransferase; ALP: alkaline phosphatase; GGT: gamma-glutamyl transpeptidase. The Metavir fibrosis score (on a scale from F0 to F4, with F0 indicating no fibrosis and F4 fibrosis consistent with compensated cirrhosis) was based on a liver-biopsy specimen reviewed by a central pathologist.