CD4 and AIDS: The average estimated duration of HIV was 10 years, 56.5% had a prior diagnosis of AIDS, 355 (66.9%) took ART at baseline, the plasma HIV RNA was ≤ 200 copies/mL in 248 (46.7%), and nadir and current CD4 + T lymphocyte count (median [IQR]) was 173 [61, 299] and 448/μL[290, 657].