Browsing by Subject "sexual risk behaviour"

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    An exploration of the determinants of sexual risk behaviour among adolescent girls and young women aged 15-24 years in South Africa: a sub-study of the 2019-2022 HERStory2 study
    (2024) Chamuka, Paidashe; Knight, Lucia; Duby, Zoe
    Objective: The study aims to understand why South African adolescent girls and young women (AGYW) engage in sexual risk behaviours, such as unsafe sex and transactional and inter-generational sexual relationships. These behaviours lead to adverse sexual and reproductive health (SRH) outcomes, including HIV, STIs, unplanned pregnancies, and forced sex. By exploring the perspectives of AGYW and community stakeholders, the study seeks to enhance future interventions aimed at reducing the risk of STIs, including HIV, and unintended pregnancies among AGYW. Methods The study is based on the qualitative component of the HERStory2 study, a mixed-methods evaluation of an SRH intervention for AGYW in six South African districts. Data from in-depth interviews with twenty-seven participants were thematically analysed using the social-ecological model as a theoretical framework. Results The findings showed that the reasons for AGYW's engagement in sexual risk behaviour are nested within individual, interpersonal, community, and structural levels. At the individual level, participants reported that AGYW may engage in sexual risk behaviours due to their age, low perception of risk, problematic alcohol consumption, and the need for high grades at school. At the interpersonal level, social media-induced peer pressure was cited as a reason for AGYW's engagement in sexual risk behaviours. Community-level factors included lack of safety and economic activities such as mining. At the structural level, poverty, negative attitudes from public healthcare providers at clinics, and social and gender norms were perceived to influence AGYW's sexual risk behavior. Conclusion The results suggest that AGYW's sexual risk behaviour is influenced by many complex factors beyond the individual. The results call for targeted holistic interventions to reduce sexual risk behaviour and improve the SRH outcomes for AGYW in this high HIV burden context.
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    Modelling the relationship between antiretroviral treatment and HIV prevention: limitations of the Spectrum AIDS Impact Model in a changing policy environment
    (2007) Nattrass, Nattrass
    This paper shows how two publicly available epidemiological modelling packages, namely the Spectrum AIDS Impact Model and the ASSA2003 AIDS and Demographic Model, predict very different impacts from rolling out highly active antiretroviral treatment (HAART) on new HIV infections. Using South Africa as a case study, it shows that the ASSA2003 model predicts a significant drop in new HIV infections as HAART is rolled out, whereas the Spectrum model assumes that HAART does not have a preventative impact (and in fact generates a small increase in new HIV infections). Users will thus draw different conclusions about the public health benefits of HAART depending on which modelling package they use. Despite being presented as a policy-oriented modelling tool capable of exploring 'what if' questions about the impact of different policy choices, the Spectrum model is illequipped to do so with regard to a HAART rollout. Unlike Spectrum, ASSA2003 is more flexible and its assumptions are clear. Better modelling and more information (including about the relationship between HAART and sexual risk behaviour) is required to develop appropriate public-policy modelling for the HAART era.