Summary of 50% inhibitory concentrations (IC50) determined by infecting TZM-bl cells with HIV-1 BaL.

aData show the confidence interval (C.I.) based on the 2.5 and 97.5 percentiles of bootstrapped IC50 estimates, and the coefficient of variation (Cv) of the IC50 of each drug alone and in combination.bCombined activities were evaluated using a 1∶1 ratio of IC50 values, corresponded to the molar ratios of 1∶11 Free EFV∶Free TFV, 1∶5 Free TFV∶Free SQV, and 1∶3 Free TFV∶NP-SQV.cCombined activities were evaluated using a 1∶50 ratio of IC50 values, corresponded to the molar ratios of 1∶11 Free EFV∶Free TFV.