CD4 and liver disorder: Platelet counts below the normal adult reference range (< 150 × 109/l), a common finding in patients with advanced liver disease, were also more common in cases and controls with CD4 nadir < 500 cells/μl compared to corresponding groups with CD4 nadir ≥ 500 cells/μl (53.3% vs. 17.6%, p = 0.001, and 32.8% vs. 17.9%, p = 0.08, respectively).