Saturday, April 9, 2016

Characteristics of Age-Discordant Partnerships Associated with HIV Risk among Young South African Women

Sexual liaisons between older men and younger women have been linked to greater risk of HIV acquisition. This study aims to: 1) identify psychosocial and behavioral factors associated with age-discordant (partner ≥ 5 years older) versus age-concordant partnerships (-1<partner< 5); and 2) examine the association between partner age discordance and young South African women's sexual behavior.

We used generalized estimating equations to analyze responses from 656 sexually-experienced females (aged 13-20 years) from rural Mpumalanga province.

Partner age discordance was associated with greater odds of reporting both more frequent sex and having a partner with concurrent partnerships. Age-discordant partnerships were associated with greater odds of: casual partnerships, having a partner with concurrent partnerships and more frequent intercourse (i.e., having sex at least 2 or 3 times per month). They were associated with lower odds of reporting condom use at last sex and always using condoms in age-discordant partnerships.

Our findings suggest that a history of age-discordant partnerships, and to a lesser extent having an age-discordant partner, is linked to HIV risk among young South African women; however, the link between partner age discordance and HIV risk may be more strongly related to the characteristics of age-discordant partnerships than to characteristics of young women who form such partnerships.

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  • Department of Public Health Sciences, Medical University of South Carolina, Charleston, SC.  
  • 2 Department of Biostatistics, School of Public Health, University of Washington, Seattle, WA. 
  • 3 Fred Hutchinson Cancer Research Institute, Seattle, WA.
  • 4 Department of International Health, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD. 
  • 5 School of Health, University of New England, Armidale, NSW. 
  • 6 Wits Reproductive Health & HIV Institute, University of the Witwatersrand, Johannesburg, South Africa. 
  • 7 Department of Epidemiology, Gillings School of Global Public Health, University of North Carolina at Chapel Hill, Chapel Hill, NC.
  •  2016 Mar 11. 

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