“In the earlier‐ART group, 12.9% of patients had new AIDS‐defining illness or died by 48 weeks, as compared to 16.1% in the later ART group (95% CI −1.8 to 8.1; p = 0.45). Among patients with a screening CD4+ T cells counts of less than 50 per cubic millimeter, 15.5% of patients in the earlier‐ART group versus 26.6% in the later‐ART group had a new AIDS‐defining illness or died (95% CI, 1.5 to 20.5; p = 0.02).” Here, CD4 is linked to AIDS.