Factors influencing the difference in HIV prevalence between antenatal clinic and general population in sub-Saharan Africa


Glynn, JR; Buve, A; Carael, M; Musonda, RM; Kahindo, M; MacAuley, I; Tembo, F; Zekeng, L; (2001) Factors influencing the difference in HIV prevalence between antenatal clinic and general population in sub-Saharan Africa. AIDS (London, England), 15 (13). pp. 1717-25. ISSN 0269-9370 DOI: https://doi.org/10.1097/00002030-200109070-00016

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Abstract

OBJECTIVE: To compare HIV prevalence in antenatal clinics (ANC) and the general population, and to identify factors determining the differences that were found. DESIGN: Cross-sectional surveys in the general population and in ANC in three cities. METHODS: HIV prevalence measured in adults in the community was compared with that measured by sentinel surveillance in ANC in Yaounde, Cameroon, Kisumu, Kenya, and Ndola, Zambia. RESULTS: In Yaounde and Ndola, the HIV prevalence in ANC attenders was lower than that in women in the population overall, and for age groups over 20 years. In Kisumu, the HIV prevalence in ANC attenders was similar to that in women in the population at all ages. The only factors identified that influenced the results were age, marital status, parity, schooling, and contraceptive use. The HIV prevalence in women in ANC was similar to that in the combined male and female population aged 15-40 years in Yaounde and Ndola, but overestimated it in Kisumu. In Yaounde and Ndola, the overall HIV prevalence in men was approximated by using the age of the father of the child reported by ANC attenders, but this method overestimated the HIV prevalence in Kisumu, and did not give good age-specific estimates. CONCLUSION: Few factors influenced the difference in HIV prevalence between ANC and the population, which could aid the development of adjustment procedures to estimate population HIV prevalence. However, the differences between cities were considerable, making standard adjustments difficult. The method of estimating male HIV prevalence should be tested in other sites.

Item Type: Article
Keywords: Adolescent, Adult, Africa South of the Sahara/epidemiology, Bias (Epidemiology), Female, HIV Infections/*epidemiology, Human, Male, Middle Age, Pregnancy, Pregnancy Complications, Infectious/*epidemiology/*virology, *Prenatal Care, Prevalence, Sentinel Surveillance, Support, Non-U.S. Gov't, Adolescent, Adult, Africa South of the Sahara, epidemiology, Bias (Epidemiology), Female, HIV Infections, epidemiology, Human, Male, Middle Age, Pregnancy, Pregnancy Complications, Infectious, epidemiology, virology, Prenatal Care, Prevalence, Sentinel Surveillance, Support, Non-U.S. Gov't
Faculty and Department: Faculty of Epidemiology and Population Health > Dept of Infectious Disease Epidemiology
PubMed ID: 11546948
Web of Science ID: 171472800016
URI: http://researchonline.lshtm.ac.uk/id/eprint/16880

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