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Publication Details
AFRICAN RESEARCH NEXUS
SHINING A SPOTLIGHT ON AFRICAN RESEARCH
medicine
Optimal time on HAART for prevention of mother-to-child transmission of HIV
Journal of Acquired Immune Deficiency Syndromes, Volume 58, No. 2, Year 2011
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Description
Objectives: To determine the impact of time between initiating highly active antiretroviral therapy (HAART) and delivery-duration of antenatal HAART-on perinatal HIV infection. Design: We conducted a retrospective cohort analysis of pregnant HIV-infected women in Lusaka, Zambia. Women in our cohort were receiving HAART and had an infant HIV polymerase chain reaction test between 3 and 12 weeks of life. Methods: We examined factors associated with infant HIV infection and performed a locally weighted regression analysis to examine the effect of duration of antenatal HAART on perinatal HIV infection. Results: From January 2007 to March 2010, 1813 HIV-infected pregnant women met inclusion criteria. Mean gestational age at first antenatal visit was 21 weeks (SD ± 6), median CD4+ cell count was 231 cells per microliter (interquartile range: 164-329), and median duration of antenatal HAART was 13 weeks (interquartile range 8-19). Fifty-nine (3.3%) infants were HIV infected. Duration of antenatal HAART was the most important predictor of perinatal HIV transmission. Compared with women initiating HAART at least 13 weeks before delivery, women on HAART for ≤4 weeks had a 5.5-fold increased odds of HIV transmission (95% confidence interval: 2.6 to 11.7). Locally weighted regression analysis suggested limited additional prophylactic benefit beyond 13 weeks on antenatal HAART. Conclusions: Low rates of mother-to-child HIV transmission can be achieved within programatic settings in Africa. Maximal effectiveness of prevention of mother-to-child transmission programs is achieved by initiating HAART at least 13 weeks before delivery. © 2011 by Lippincott Williams & Wilkins.
Authors & Co-Authors
Chibwesha, Carla J.
United States, Birmingham
Heersink School of Medicine
Zambia, Lusaka
Centre for Infectious Disease Research in Zambia
Giganti, Mark Joseph
United States, Birmingham
Heersink School of Medicine
Zambia, Lusaka
Centre for Infectious Disease Research in Zambia
Putta, Nande B.
Zambia, Lusaka
Centre for Infectious Disease Research in Zambia
Chintu, Namwinga T.
Zambia, Lusaka
Centre for Infectious Disease Research in Zambia
Mulindwa, J.
Zambia, Lusaka
Centre for Infectious Disease Research in Zambia
Zambia, Lusaka
University Teaching Hospital Lusaka
Dorton, B. J.
Zambia, Lusaka
Centre for Infectious Disease Research in Zambia
Chi, Benjamin H.
United States, Birmingham
Heersink School of Medicine
Zambia, Lusaka
Centre for Infectious Disease Research in Zambia
Stringer, Jeffrey S.A.
United States, Birmingham
Heersink School of Medicine
Zambia, Lusaka
Centre for Infectious Disease Research in Zambia
Stringer, Elizabeth Mc Phillips
United States, Birmingham
Heersink School of Medicine
Zambia, Lusaka
Centre for Infectious Disease Research in Zambia
Statistics
Citations: 86
Authors: 9
Affiliations: 3
Identifiers
Doi:
10.1097/QAI.0b013e318229147e
ISSN:
15254135
Research Areas
Infectious Diseases
Maternal And Child Health
Study Design
Cohort Study
Study Approach
Quantitative
Study Locations
Zambia
Participants Gender
Female