Maternal Disease Stage and Child Undernutrition in Relation to Mortality Among Children Born to HIV-Infected Women in Tanzania

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Abstract
Objective: To examine whether maternal HIV disease stage during pregnancy and child malnutrition are associated with child mortality. Design: Prospective cohort study in Tanzania. Methods: Indicators of disease stage were assessed for 939 HIV-infected women during pregnancy and at delivery, and children's anthropometric status was obtained at scheduled monthly clinic visits after delivery. Children were followed up for survival status until 24 months after birth. Results: Advanced maternal HIV disease during pregnancy (CD4 count 3) was associated with increased risk of child mortality through 24 months of age (hazard ratio [HR] = 1.74, 95% confidence interval [CI]: 1.32 to 2.30). CD4 count 3 was also associated with an increased risk of death among children who remained HIV-negative during follow-up (HR = 2.00, 95% CI: 1.36 to 2.94). Low maternal hemoglobin concentration and child undernutrition were related to an increased risk of mortality in this cohort of children. Conclusions: Low maternal CD4 cell count during pregnancy is related to increased risk of mortality in children born to HIV-infected women. Care and treatment for HIV disease, including highly active antiretroviral therapy to pregnant women, could improve child survival. Prevention and treatment of undernutrition in children remain critical interventions in settings with high HIV prevalence.

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