Digestive Diseases and Sciences

, Volume 56, Issue 10, pp 3038–3044

Comparison of FIB-4 and APRI in HIV–HCV Coinfected Patients with Normal and Elevated ALT

  • Amy G. Shah
  • Paula G. Smith
  • Richard K. Sterling
Original Article

DOI: 10.1007/s10620-011-1710-2

Cite this article as:
Shah, A.G., Smith, P.G. & Sterling, R.K. Dig Dis Sci (2011) 56: 3038. doi:10.1007/s10620-011-1710-2

Abstract

Background and Aims

Liver biopsy is standard for assessment of disease severity in patients with chronic HCV. However, associated risks have led to the development of simple non-invasive models. However, their utility in those with normal ALT is unknown.

Methods

FIB-4 and APRI were calculated for patients with HIV–HCV coinfection undergoing biopsy. The performance of each model and AUROC for predicting significant fibrosis (Ishak 4–6) were determined for the entire cohort and stratified by elevated (≥60 U/l in men and ≥40 U/l in women) and normal ALT.

Results

Two-hundred and ninety-five liver biopsies from 237 patients were included. Elevated ALT was observed in 55, and 15% had significant fibrosis. The AUROC curve for patients with elevated ALT was 0.8 for FIB-4 and 0.76 for APRI, compared with 0.90 for the FIB-4 and 0.85–0.95 for the APRI in those with normal ALT. The sensitivity, specificity, positive predictive value (PPV), and negative predictive value (NPV) of FIB-4 were 1.0, 0.91, 0.50, and 1.0 for patients with normal ALT; the values were 0.67, 0.99, 0.67, and 0.99 for APRI.

Conclusions

Both FIB-4 and APRI are useful for highly accurate identification of those without advanced fibrosis. However, because they have poor positive predictive value, liver biopsy will continue to be used for assessment of patients with coinfection.

Keywords

Non-invasive markersLiver fibrosisHIV–HCV coinfection

Copyright information

© Springer Science+Business Media, LLC 2011

Authors and Affiliations

  • Amy G. Shah
    • 1
  • Paula G. Smith
    • 1
  • Richard K. Sterling
    • 1
    • 2
    • 3
  1. 1.Divisions of Gastroenterology, Hepatology and Nutrition Infectious DiseasesVirginia Commonwealth University Health SystemRichmondUSA
  2. 2.Division of Infectious DiseasesVirginia Commonwealth University Health SystemRichmondUSA
  3. 3.Section of HepatologyVirginia Commonwealth University Medical CenterRichmondUSA