HIV Prevalence and ART Use among Men in Partnerships with 15‒29 Year Old Women in South Africa: HIV Risk Implications for Young Women in Age-Disparate Partnerships

October 2017 - Epidemiology

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Evans, M., Maughan-Brown, B., Zungu, N., George, G. AIDS and Behavior (March 2017), 21:2533–2542, doi: 10.1007/s10461-017-1741-6.

This study used data from South Africa to examine HIV prevalence among men who used antiretroviral treatment (ART) in age-disparate relationships with women in the 15–29-year age group, comparing them to men in age-similar relationships with women in this age group. Among the 1,463 men in a relationship with a woman aged 15–29 years, HIV prevalence was 16.4 percent; among these men, 15.9 percent were on ART. Men in age-disparate partnerships were less likely to be on treatment than those in age-similar unions. Two-fifths of relationships (41.4%) were age-disparate (the woman was ≥5 years younger). Men in age-disparate relationships with partners aged 15–24 years were more likely to be HIV-positive than men in age-similar relationships. Older men with partners aged 25–29 had only slightly greater HIV risk than men in age-similar relationships. Men who were 5–9 years older than partners aged 25–29 had HIV positivity and treatment rates similar to men in age-similar relationships. Men ≥10 years older than their partners were less likely to be HIV-positive than men in age-similar relationships. Prevention interventions should focus on reducing HIV risk for young women in age disparate relationships.

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