Journal
DIGESTIVE DISEASES AND SCIENCES
Volume 48, Issue 1, Pages 146-153Publisher
SPRINGER
DOI: 10.1023/A:1021702902681
Keywords
biopsy; diagnosis; fibrosis; hepatitis C; platelet; prothrombin time
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As an alternative to liver biopsy, an index of five biochemical markers (alpha(2)-macroglobulin, apolipoprotein A1, haptoglobin, total bilirubin, gamma-glutamyl-transpeptidase) has been shown to predict the severity of hepatitis C-related fibrosis. The objective of this study was to compare this index with other markers frequently used for this purpose (prothrombin time, platelets, age-platelet index). In 323 hepatitis C-infected patients, the discriminative values of these markers for F2-F4 fibrosis (by the METAVIR classification) were compared. By multiple logistic regression analysis, only the five-marker index ( P < 0.0001) and prothrombin time ( P = 0.02) were independently predictive of F2-F4 fibrosis. For this outcome, the area under the receiver operating characteristic curve was significantly higher for the five-marker index (0.836 +/- 0.024) than the age-platelet index (P = 0.002), and the platelet count and prothrombin time ( P < 0.001), indicating greater diagnostic value. The addition of the latter markers to the five-marker index proved unhelpful for increasing its accuracy. In conclusion, an index of five biochemical markers accurately predicts significant hepatitis C-related fibrosis and is superior to traditional markers.
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