title: [Comparison of various noninvasive serum markers of liver fibrosis in chronic viral liver disease].
abstract: OBJECTIVE
  The aim of this study was to determine the clinical performances of noninvasive serum markers for the prediction of liver fibrosis in chronic viral liver diseases.
  
  
  METHODS
  We analyzed a total of 225 patients with chronic viral liver diseases (180 with hepatitis B virus, 43 with hepatitis C virus, and 2 with hepatitis B+C virus) who underwent a liver biopsy procedure at the Hanyang University Guri Hospital between March 2002 and February 2007. Serum was also obtained at the time of liver biopsy. Liver fibrosis was staged according to the scoring system proposed by the Korean Study Group for the Pathology of Digestive Diseases. Various noninvasive serum markers were evaluated, including the aspartate aminotransferase (AST)/alanine aminotransferase (ALT) ratio (AAR), age-platelet (AP) index, AST/platelet ratio index (APRI), cirrhosis discriminant score (CDS), platelet count, hyaluronic acid (HA), and type IV collagen.
  
  
  RESULTS
  There were 17, 40, 61, 74, and 33 patients at stages F0, F1, F2, F3, and F4, respectively. The overall diagnostic accuracies of each marker, as determined by the area under receiver operating characteristics curves, were APRI=0.822, CDS=0.776, platelet count=0.773, AP index=0.756, HA=0.749, type IV collagen=0.718, and AAR=0.642 for predicting significant fibrosis (> or =F2); and CDS=0.835, platelet count=0.795, AP index=0.794, HA=0.766, AAR=0.711, type IV collagen=0.697, and APRI=0.691 for predicting extensive fibrosis (> or =F3).
  
  
  CONCLUSIONS
  All noninvasive serum markers evaluated in this study were useful for predicting significant or extensive liver fibrosis in chronic viral liver diseases. In particular, APRI was most useful for the prediction of significant fibrosis, and CDS was most useful for the prediction of extensive fibrosis.
authors.affiliation: Department of Internal Medicine, Hanyang University College of Medicine, Guri, Korea.
authors.forename: Sun Min
authors.initials: SM
authors.lastname: Kim
authors.forename: Joo Hyun
authors.initials: JH
authors.lastname: Sohn
authors.forename: Tae Yeob
authors.initials: TY
authors.lastname: Kim
authors.forename: Young Wook
authors.initials: YW
authors.lastname: Roh
authors.forename: Chang Soo
authors.initials: CS
authors.lastname: Eun
authors.forename: Yong Cheol
authors.initials: YC
authors.lastname: Jeon
authors.forename: Dong Soo
authors.initials: DS
authors.lastname: Han
authors.forename: Young Ha
authors.initials: YH
authors.lastname: Oh
mesh_terms: D000328:Adult; D000410:Alanine Transaminase / Q000097:blood; D019540:Area Under Curve; D001219:Aspartate Aminotransferases / Q000097:blood; D015415:Biomarkers / Q000097:blood; D024141:Collagen Type IV; D005260:Female; D019694:Hepatitis B, Chronic / Q000150:complications*; D019698:Hepatitis C, Chronic / Q000150:complications*; D006801:Humans; D006820:Hyaluronic Acid / Q000097:blood; D008103:Liver Cirrhosis / Q000175:diagnosis* / Q000821:virology; D008297:Male; D008875:Middle Aged; D010976:Platelet Count; D011237:Predictive Value of Tests; D012720:Severity of Illness Index
chemical_list: D015415:Biomarkers; D024141:Collagen Type IV; D006820:Hyaluronic Acid; D001219:Aspartate Aminotransferases; D000410:Alanine Transaminase