Age differences between sexual partners, behavioural and demographic correlates, and HIV infection on Likoma Island, Malawi

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dc.contributor.authorBeauclair, Roxanneen_ZA
dc.contributor.authorHelleringe, Stephaneen_ZA
dc.contributor.authorHens, Nielen_ZA
dc.contributor.authorDelva, Wimen_ZA
dc.date.accessioned2017-10-20T07:51:12Z
dc.date.available2017-10-20T07:51:12Z
dc.date.issued2016
dc.descriptionCITATION: Beauclair, R., et al. 2016. Age differences between sexual partners, behavioural and demographic correlates, and HIV infection on Likoma Island, Malawi. Scientific Reports, 6:36121, doi:10.1038/srep36121.
dc.descriptionThe original publication is available at http://www.nature.com/srep
dc.description.abstractPatterns of age differences between sexual partners – age-mixing – may partially explain the magnitude of HIV epidemics in Sub-Saharan Africa. However, evidence of age-disparity as a risk factor for HIV remains mixed. We used data from a socio-centric study of sexual behaviour in Malawi to quantify the age-mixing pattern and to find associations between relationship characteristics and age differences for 1,922 participants. Three age difference measures were explored as predictors of prevalent HIV infection. We found that for each year increase in male participant age, the average age difference with their partners increased by 0.26 years, while among women it remained approximately constant around 5 years. Women in the study had larger within-individual variation in partner ages compared to men. Spousal partnerships and never using a condom during sex were associated with larger age differences in relationships of both men and women. Men who were more than five years younger than their partners had 5.39 times higher odds (95% CI: 0.93–31.24) of being HIV-infected than men 0–4 years older. The relationship between HIV-infection and age-asymmetry may be more complex than previously described. The role that women play in HIV transmission should not be under-estimated, particularly in populations with large within-individual variation in partner ages.en_ZA
dc.description.urihttps://www.nature.com/articles/srep36121
dc.description.versionPublisher's version
dc.format.extent10 pages
dc.identifier.citationBeauclair, R., et al. 2016. Age differences between sexual partners, behavioural and demographic correlates, and HIV infection on Likoma Island, Malawi. Scientific Reports, 6:36121, doi:10.1038/srep36121
dc.identifier.issn2045-2322 (online)
dc.identifier.otherdoi:10.1038/srep36121
dc.identifier.urihttp://hdl.handle.net/10019.1/102360
dc.language.isoen_ZAen_ZA
dc.publisherSpringer Nature
dc.rights.holderAuthors retain copyright
dc.subjectHIV-infected persons -- Africa, Sub-Saharanen_ZA
dc.subjectHIV-infected persons -- Sexual behavioren_ZA
dc.subjectHIV infections -- Age factorsen_ZA
dc.titleAge differences between sexual partners, behavioural and demographic correlates, and HIV infection on Likoma Island, Malawien_ZA
dc.typeArticleen_ZA
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