Demographics of patients used in study.

1: All HIV-1 positive patients were enrolled in protocols approved by the National Institute NIAID Review Board administered at the NIH.2&3: Numbers in parentheses indicate percentatges of male or females in each group.4: The HIV-1 viral load was measured using the bDNA [22] or real-time PCR method [23] Data show means +SD (copies/ml).5: total CD4+T cell count was performed by flow cytometer and absolute CD4 counts were obtained using a dual platform method using a Sysmex XT2000i hematology analyzer. Data indicate means +SD (cells/µl).