alexa Comparison of HIV prevalence estimates for Zimbabwe from antenatal clinic surveillance (2006) and the 2005-06 Zimbabwe Demographic and Health Survey.
Infectious Diseases

Infectious Diseases

Journal of AIDS & Clinical Research

Author(s): Gonese E, Dzangare J, Gregson S, Jonga N, Mugurungi O, , Gonese E, Dzangare J, Gregson S, Jonga N, Mugurungi O,

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Abstract OBJECTIVE: To assess whether HIV surveillance data from pregnant women attending antenatal care (ANC) clinics in Zimbabwe represent infection levels in the general population. METHODS: HIV prevalence estimates from ANC surveillance sites in 2006 were compared with estimates from the corresponding Zimbabwe Demographic and Health Survey 2005-06 (ZDHS) clusters using geographic information systems. RESULTS: The ANC HIV prevalence estimate (17.9\%, 95\% CI 17.0\%-18.8\%) was similar to the ZDHS estimates for all men and women aged 15-49 years (18.1\%, 16.9\%-18.8\%), for pregnant women (17.5\%, 13.9\%-21.9\%), and for ANC attendees living within 30 km of ANC surveillance sites (19.9\%, 17.1\%-22.8\%). However, the ANC surveillance estimate (17.9\%) was lower than the ZDHS estimates for all women (21.1\%, 19.7\%-22.6\%) and for women living within 30 km catchment areas of ANC surveillance sites (20.9\%, 19.4\%-22.3\%). HIV prevalence in ANC sites classified as urban and rural was significantly lower than in sites classified as "other". CONCLUSIONS: Periodic population surveys can be used to validate ANC surveillance estimates. In Zimbabwe, ANC surveillance provides reliable estimates of HIV prevalence among men and women aged 15-49 years in the general population. Three classifications of ANC sites (rural/urban/other) should be used when generating national HIV estimates.
This article was published in PLoS One and referenced in Journal of AIDS & Clinical Research

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