Background and aims Non-invasive assessment methods to assess liver fibrosis are important tools where FibroScan or liver biopsy is not accessible. The aim of this study is to assess the efficacy and performance of the fibrosis index based on four factors (FIB-4) and aspartate transaminase-to-platelet ratio index (APRI) to evaluate liver fibrosis against FibroScan for the stages of liver fibrosis in patients of chronic liver disease due to chronic hepatitis B (CHB). Methods This was a cross-sectional study conducted in a tertiary care center in Uttar Pradesh, India, and the patients were enrolled between 2017 and 2020. During the study period, 520 patients with a confirmed diagnosis of chronic hepatitis B virus (HBV) infection were selected. Laboratory blood testing and FibroScan were performed in all patients with CHB. APRI and FIB-4 were calculated using a standard formula involving laboratory parameters. Result The performance of FIB-4 scores are nearly similar to APRI, with area under the curve (AUC) 0.753, (95% CI) (0.711-0.795) (p<0.0001) for ≥F2 fibrosis (significant fibrosis) and even better 0.851 (0.815-0.887) (p<0.0001) for the F4 fibrosis (cirrhosis) group. Both the tests are proven good to diagnose fibrosis but FIB-4 has more area under the receiver operating characteristic (AUROC) than APRI in each set, thus FIB-4 is considered better than APRI. Conclusions APRI and FIB-4 scores showed good performance in detecting patients without liver fibrosis as compared with FibroScan. Based on this study, FibroScan can be avoided in patients examined for the diagnosis of mild fibrosis and cirrhosis in the source constrained area.
Keywords: aspartate transaminase-to-platelet ratio index (apri); chronic hepatitis b (chb); cirrhosis; fibrosis; fibrosis index based on four factors (fib-4).
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