CD8A and AIDS: In the adjusted model, after controlling for detected baseline imbalances in age, nationality, previous AIDS, duration of HIV, duration of VL suppression, and CD4 count nadir, there was no evidence for a difference in trajectories by study arm over time (p = 0.30 for CD4 count, p = 0.38 for CD8+ T-cell count, and p = 0.73 for the CD4/CD8 ratio).