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. 2015 May 22:15:501.
doi: 10.1186/s12889-015-1848-5.

Prevalence of HIV and syphilis infections among pregnant women attending antenatal clinics in Tanzania, 2011

Joel Manyahi  1 , Boniphace S Jullu  2 , Mathias I Abuya  3 , James Juma  4 , Joel Ndayongeje  5 , Bonita Kilama  6 , Veryeh Sambu  7 , Josef Nondi  8 , Bernard Rabiel  9 , Geoffrey Somi  10 , Mecky I Matee  11
Affiliations

Prevalence of HIV and syphilis infections among pregnant women attending antenatal clinics in Tanzania, 2011

Joel Manyahi et al. BMC Public Health. .

Abstract

Background: The occurrence of HIV-1 and syphilis infections during pregnancy poses major health risks to the foetus due to mother-to-child transmission. We conducted surveillance of HIV and syphilis infections among pregnant women attending antenatal clinics (ANCs) in Mainland Tanzania in 2011.

Methods: This surveillance was carried out in 133 ANCs selected from 21 regions in Tanzania. In each region, six ANC sites were selected, with urban, semi-urban, and rural areas contributing two each. All pregnant women who were attending selected sentinel ANC sites for the first time at any pregnancy between September and December 2011 were enrolled. Serial ELISA assays were performed to detect HIV infection in an unlinked anonymous manner using dried blood spot (DBS) after routine syphilis testing. Data analysis was conducted using Stata v.12 software.

Results: A total of 39,698 pregnant women representing 2.4 % of all pregnant women (1.68 million) attending ANCs in the Mainland Tanzania were enrolled. The overall HIV prevalence was found to be 5.6 % (95 % CI: 5.4-5.8 %). The risk for HIV infection was significantly higher among women aged 25-34 (cOR = 1.97, 95 % CI: 1.79-2.16; p < 0.05), older than 35 years (cOR = 1.88, 95 % CI: 1.62-2.17; p < 0.05) and those having 1-2 and 3-4 previous pregnancies. HIV infection was less prevalent among women attending rural ANC clinics (cOR = 0.46, 95 % CI 0.4-0.52; p < 0.05). The overall syphilis prevalence was 2.5 % (95 % CI: 2.3, 3.6). The risk for syphilis infection was significantly higher among women attending semi-urban and rural clinics and those having 3-4, and 5 previous pregnancies (p < 0.05). Marital status and level of education were not statistically significant with either of the two infections. HIV and syphilis co-infections occurred in 109 of 38,928 (0.3 %).

Conclusion: The overall prevalence of HIV infection (5.6 %) and syphilis (2.5 %) found among pregnant women attending ANC clinics in Tanzania calls for further strengthening of current intervention measures, which include scaling up the integration of prevention of mother to child transmission (PMTCT) services in Reproductive and Child Health (RCH) clinics.

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References

    1. Boerma JT, Ghys PD, Walker N. Estimates of HIV-1 prevalence from national population-based surveys as a new gold standard. Lancet. 2003;362(9399):1929–31. doi: 10.1016/S0140-6736(03)14967-7. - DOI - PubMed
    1. Mishra V, Vaessen M, Boerma JT, Arnold F, Way A, Barrere B, et al. HIV testing in national population-based surveys: experience from the Demographic and Health Surveys. Bull World Health Organ. 2006;84(7):537–45. doi: 10.2471/BLT.05.029520. - DOI - PMC - PubMed
    1. Gouws E, Mishra V, Fowler TB. Comparison of adult HIV prevalence from national population-based surveys and antenatal clinic surveillance in countries with generalised epidemics: implications for calibrating surveillance data. Sex Transm Infect. 2008;84(Suppl 1):i17–i23. doi: 10.1136/sti.2008.030452. - DOI - PMC - PubMed
    1. Calleja JM, Marum LH, Carcamo CP, Kaetano L, Muttunga J, Way A. Lessons learned in the conduct, validation, and interpretation of national population based HIV surveys. AIDS. 2005;19(Suppl 2):S9–S17. doi: 10.1097/01.aids.0000172872.88347.f3. - DOI - PubMed
    1. Chin J, Mann J. Global surveillance and forecasting of AIDS. Bull World Health Organ. 1989;67(1):1–7. - PMC - PubMed