Sexual violence and conflict in Africa: prevalence and potential impact on HIV incidence
- Charlotte H Watts1,
- Anna M Foss1,
- Mazeda Hossain1,
- Cathy Zimmerman1,
- Rachel von Simson1,
- Jennifer Klot2
- 1Department of Global Health and Development, London School of Hygiene and Tropical Medicine (LSHTM), London, UK
- 2Social Science Research Council, New York, USA
- Correspondence to Dr Charlotte Watts, Department of Global Health and Development, Faculty of Public Health and Policy, London School of Hygiene and Tropical Medicine (LSHTM), 15–17 Tavistock Place, London, UK;
- Accepted 15 September 2010
- Published Online First 23 October 2010
Background and aims Sexual violence (SV) is common during conflict. Despite reports of rape-related incidents of HIV infection, ecological analyses have found no association between SV and HIV at a population level. This has led to debate in the humanitarian, security and public health arenas about whether SV is an important HIV risk factor in conflict-affected settings. This paper uses published evidence on sexual violence in Africa and modelling to explore when SV may increase individual HIV risk and community HIV incidence.
Methods Publications on sexual violence in conflict settings were reviewed and a mathematical model describing the probability of HIV acquisition was adapted to include the potential effect of genital injury and used to estimate the relative risk of HIV acquisition in ‘conflict’ versus ‘non-conflict’ situations. An analytical equation was developed to estimate the impact of SV on HIV incidence.
Results A rape survivor's individual HIV risk is determined by potentially compounding effects of genital injury, penetration by multiple perpetrators and the increased likelihood that SV perpetrators are HIV infected. Modelling analysis suggests risk ratios of between 2.4 and 27.1 for the scenarios considered. SV could increase HIV incidence by 10% if rape is widespread (>40%); genital injury increases HIV transmission (threefold or more); at least 10% of perpetrators are HIV infected and underlying HIV incidence is low (<0.5%).
Conclusion The analysis illustrates that SV is likely to be an important HIV risk factor in some conflict-affected settings. More generally, it indicates the limitations of using broad aggregate analysis to derive epidemiological conclusions. Conflict-related initiatives offer important opportunities to assist survivors and prevent future abuses through collaborative programming on reconstruction, HIV and sexual violence.
Funding AIDS, Security and Conflict Initiative, convened by the Netherlands Institute of International Relations ‘Clingendael’ and the Social Science Research Council. Partial funding for this analysis also came from the Sigrid Rausing Trust.
Competing interests None.
Provenance and peer review Not commissioned; externally peer reviewed.