Excessive early mortality in the first year of treatment in HIV type 1-infected patients initiating Antiretroviral therapy in resource-limited settings

The response to treatment and risk factors for early mortality following initiation of combination antiretrovirals ( ARVs) in a cohort of African patients are described in a retrospective cohort design. Medical history, laboratory parameters, and mortality data were reviewed for patients initiating ARVs in 12 clinical centers in Mozambique, Tanzania, and Malawi. Among 3456 HIV-1- infected patients who received ARVs for more than 6 months, at baseline 72% had WHO clinical stages 3/4, 7% had a viral load < 400 copies/ml, and 38% had a CD4 cell count > 200/mu l. One year later, 78% had undetectable virus loads and 79% had CD4 cell counts > 200 cells/ mm(3). In the first year of HAART 260 deaths occurred ( 97 per 1000 person/years) with mortality peaking in the first 3 months. The highest mortality was observed in patients with low BMI, low hemoglobin levels, and CD4 values > 200 cells/mu l at baseline. Mortality rates following initiation of HAART are higher in patients in resource-limited areas, particularly in the first 90 days following treatment initiation. HAART initiated at higher CD4 cell count levels, especially among malnourished and/or anemic patients, will carry significant public health impact.