Some demographic and clinical characteristics were significantly different across the groups alive, death due to non-AIDS related and death due to AIDS-related causes of deaths (Table 1), such as gender (65%, 68.9% and 75.1% male, respectively), baseline CD4 counts (323, 264.5 and 124.5 cells/mm3, respectively), HAART use (74.7%, 53.8% and 28.3%, respectively), AIDS diagnosis at baseline (41.2%, 68,4% and 82.2%, respectively) and median follow-up time (4.6, 2.9 and 2 years, respectively). Here, CD4 is linked to AIDS.