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vol.100 número12Hyperglycaemic crisis in the Eastern Cape province of South Africa: high mortality and association of hyperosmolar ketoacidosis with a new diagnosis of diabetesThe role of prenatal alcohol exposure in abruptio placentae índice de autoresíndice de assuntospesquisa de artigos
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SAMJ: South African Medical Journal

versão On-line ISSN 2078-5135
versão impressa ISSN 0256-9574


FITZGERALD, Felicity C et al. Mother-to-child transmission of HIV in a community-based antiretroviral clinic in South Africa. SAMJ, S. Afr. med. j. [online]. 2010, vol.100, n.12, pp.827-831. ISSN 2078-5135.

OBJECTIVES: To examine the uptake of ART among pregnant women referred to an ART service and the associated rates and risk factors for vertical HIV transmission. METHODS: Retrospective analysis of an observational cohort at a community ART clinic in Cape Town. RESULTS: Between 2002 and 2008, 367 treatment-naïve pregnant women accessed the clinic. The median age was 27.5 years, and median gestation at presentation was 28 weeks. The median baseline CD4 count and viral load were 134 cells/µl and 28 282 copies/ml. Two hundred and sixty-five women (72%) commenced ART before giving birth, 73 women (20%) were referred for prevention of mother-to-child transmission therapy (PMTCT), and 29 (8%) received no intervention. Among ART-eligible women, 13% were lost to follow-up. Of those starting ART, median duration of therapy prior to birth was 7.6 weeks (interquartile range (IQR) 4 - 11.9).The HIV transmission rate was 5.1% (95% confidence interval (CI) 2.8 - 9.0%). Factors associated with transmission were advanced maternal WHO disease stage (odds ratio (OR) 9.57, p=0.02), and follow-up viral load above 50 copies/ml (OR 3.64, p=0.03). Each additional week on ART reduced transmission by 20% (p=0.05). There was no HIV transmission among women who received more than 8 weeks' therapy. CONCLUSIONS: The rate of HIV transmission in this study was higher than reported in high-income countries. Prevention of vertical transmission with ART was hindered by women presenting late in pregnancy and with advanced stage of HIV disease. Interventions that facilitate earlier ART commencement and improve programmatic retention of pregnant women are required.

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