CD4 and HIV infectious disease: Compared with the first 120 patients we recruited for the ACTIVIH study, the 20 new patients were younger (50.4 ± 12.9 vs. 56.5 ± 8.1 years of mean ± SD age, p = 0.054), and presented with shorter durations of HIV infection (8.9 ± 7.1 vs. 17.2 ± 7.4 years, p = 0.004), shorter durations of aviremia (56 ± 40 vs. 102 ± 47 months, p < 0.001), and a mean pre-therapeutic CD4 cell count tending to be higher (239 ± 169 vs. 192 ± 108 cells per μL, p = 0.112).