In the APTIVUS and comparator arms median baseline CD4 cell counts were 158 and 166 cells/ mm3, respectively, (ranges 1-1893 and 1-1184 cells/ mm3); median baseline plasma HIV-1 RNA was 4.79 and 4.80 log10 copies/ ml, respectively (ranges 2.34-6.52 and 2.01-6.76 log10 copies/ ml).