Patient characteristics in the Hospital Database (n = 120).

*defined as high-level resistance to at least one agent from the class. **defined as follows: First-line: no known history of resistance to any agent, and maximum change of 1 class of drugs. Second-line: history of resistance to any agent ever or major substitutions of >1 class. ***Test unsuccessful counted as unknown in the analyses. ****intergrase gene mutations had not been tested, therefore raltegravir assumed to be 1 in all patients. See text for maraviroc activity assumptions. NOTE: ABC = abacavir, TDF = Tenofovir, 3TC = lamivudine, FTC = emtricitabine, ATV/r = ritonavir boosted atazanavir, DRV/r = ritonavir boosted darunanavir, RAL = raltegravir.