CD4 and COVID-19: 601 patients had CD4+ cell count measured during episode of COVID-19. Higher mortality associated with CD4+ cell counts <200 cells/μl (n = 70) vs. ≥350 cells/μl (aHR 1.97; 95% CI 1.14–3.40). Direction of causality unclearNo difference in hazard of COVID-19 death by HIV VL (aHR vs. HIV-negative: 2.61 (95% CI: 1.98–3.43) for VL < 1000 copies/ml; 3.35 (95% CI: 1.38–6.12) for VL ≥ 1000 copies/ml or CD4+ cell count <200 cells/μl)