Infant feeding options, other nonchemoprophylactic factors, and mother-to-child transmission of HIV in Zambia

Torpey, K., Kabaso, M., Weaver, M.A., Kasonde, P., Mukonka, V., Bweupe, M., Mukundu, J. and Mandala, J. (2012) Infant feeding options, other nonchemoprophylactic factors, and mother-to-child transmission of HIV in Zambia. Journal of the International Association of Physicians in AIDS Care (JIAPAC), 11 (1), 26-33. (doi:10.1177/1545109710393308). (PMID:21430237)

Abstract

BACKGROUND: The role of antiretroviral drugs in the prevention of mother-to-child transmission (PMTCT) of HIV is well known. The objective of this study is to explore how nonchemoprophylactic factors, including infant feeding practices, mother's HIV status disclosure, mode and place of delivery, infant gender, and maternal age, are related to MTCT.

METHODS: The study analyzed program data of DNA polymerase chain reaction (PCR) results from dried blood spot samples and selected client information from perinatally exposed infants aged 0 to 12 months.

RESULTS: A total of 8237 samples were analyzed. In all, 84% of the mothers ever breast-fed their children. In instances where both mother and baby received intervention, the transmission rates of HIV were higher among those who are still breast-feeding after 6 to 12 months. Disclosure, location, and mode of delivery did not have an effect on the transmission rates of HIV when both mother and baby received prophylaxis.

CONCLUSION: Nonchemoprophylaxis factors, especially breast-feeding, play a key role in perinatal transmission of HIV.

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