CD4 and Hepatic fibrosis: The proportion with FIB-4 scores > 1.45, a common threshold indicating liver fibrosis in HCV infection [22], was nearly twice as high in groups with CD4 count nadir < 500 cells/μl compared to those with CD4 nadir ≥ 500 cells/μl among both cases and controls (62.5% vs. 37.5%, and 34.4% vs. 20.3%, respectively).