Figure 2.

After adjusting for race, age, sex, and CD4⁺ T-cell count, the percentage of HLA-DR⁺CD38⁺CD4⁺ T cells in lymph nodes predicted log₁₀ number of human immunodeficiency virus type 1 (HIV-1) RNA copies/mL (P = .012). The model also showed persistent sex-based differences in plasma HIV-1 RNA load (P = .002), after controlling for HLA-DR⁺CD38⁺CD4⁺ T cells, race, age, and CD4⁺ T-cell count. The slopes of the lines were not significantly different by sex (P = .9) or race (P = .2).