Among participants with a confirmatory CD4 result >200 cells/μl, significantly fewer hospitalizations occurred compared to participants with CD4 results ≤200 cells/μl (2.4% vs. 5.1%, p = 0.0419), and fewer opportunistic infections occurred among participants with CD4 results >200 cells/μl (26% vs. 39%, p<0.0001). The gene discussed is CD4; the disease is Opportunistic infection.