Sensitivity, specificity and predictive values of different HBsAg levels for predicting insignificant fibrosis among patients with ALT ≤2×ULN (n = 56).

<p>Insignificant fibrosis defined as Ishak fibrosis score ≤1.</p><p>HBsAg, hepatitis B surface antigen; ALT, alanine aminotransferase; ULN, upper limit of normal; PPV, positive predictive value; NPV, negative predictive value, LR+, positive likelihood ratio; LR-, negative likelihood ratio.