Baseline characteristics of the participants.

Data are percent (no.) of patients unless otherwise indicated. aP-values compare the distribution of baseline characteristics between initial virologic suppressors and non-suppressors. For continuous variable, Wilcoxon rank sum test was used, for categorical variable, Fisher's exact test was use. All the p-values are exact 2-sided p-values. bHLA type defined based on the presence of protective HLA alleles (B*13, B*27, B*51, B*57, and B*5801), unfavorable (B*35-Px variants: B*3502, 3503, 3504, or 5301), or neutral HLA alleles (all others). cAntiretroviral regimen at the time of study entry.