Fig 1. Patients’ baseline disposition towards antiretrovirals was based on: a) the complexity of the former regimen; b) the frequency of single antivirals in the former regimens of the population; c) the complexity of drug resistance at baseline; d), e), f) the frequency of single baseline mutations in the population by reverse transcriptase, protease and integrase regions, respectively.

ELV/c = elvitegravir/cobicistat, AZT = zidovudine, LPV = lopinavir, /r = boosted with ritonavir, ATV = atazanavir, MVC = maraviroc, NVP = nevirapine, EFV = efavirenz, ETV = etravirine, ABC = abacavir, RPV = rilpivirine, DRV = darunavir, 3TC = lamivudine, FTC = emtricitabine, TDF = tenofovir, RAL = raltegravir.