APOA1 and fibrosis: FibroTest is another validated marker for the quantitative assessment of fibrosis in NAFLD, ALD and chronic viral hepatitis.89 Combining five biochemical markers of haptoglobin, α2-macroglobulin, apolipoprotein A1, total bilirubin and GGT, corrected for age and gender, a mean standardised AUROC of 0.84 for advanced fibrosis in NAFLD patients was demonstrated using FibroTest in one meta-analyses.