*Multivariable binary logistic regression adjusted for age, type of regimen, duration of current ART, CD4+ T-cell nadir, CPE score, and plasma HIV RNA. Legend: OR, odds ratio; 95%CI, 95% confidence interval; aOR, adjusted odds ratio; ART, antiretroviral regimen; RAMs, resistance associated mutations; RT, reverse transcriptase gene; HGRT, historical cumulative genotype resistance test.