Pooled analysis of the association between alcohol use and violence against women: evidence from four violence prevention studies in Africa

Objectives To test associations between men's past year alcohol use and patterns of drinking, and their perpetration of intimate partner violence (IPV) and non-partner sexual violence (NPSV). To test the associations between women's reports of partner alcohol use and their experience of IPV, in three countries in Africa. Design Pooled analysis of cross-sectional baseline data from men and women participating in four IPV prevention studies across Africa and Asia. Setting Data from five data sets generated by four violence against women and girls prevention studies in three countries in sub-Saharan Africa, South Africa, Ghana and Rwanda. Participants 8104 men 18+ years old and 5613 women 18+ years old from a mix of volunteer and randomly selected samples. Main outcome measures Studies employed comparable measures of past year alcohol use, harmful alcohol use (Alcohol Use Disorder Identification Test scale) and items from modified WHO Women's Health and Domestic Violence to measure physical IPV and NPSV perpetration among men and IPV experience among women. Findings Overall harmful alcohol use among men was associated with a substantially increased odds of perpetrating physical IPV (adjusted OR (aOR)=3.45 (95% CI 2.56 to 4.64)) and NPSV (aOR=2.64 (95% CI 1.85 to 3.76)) compared with non-drinkers. Women who had seen their partner occasionally drunk (aOR=2.68 (95% CI 2.13 to 3.36)) or frequently drunk (aOR=5.94 (95% CI 4.19 to 8.41)) in the past 12 months had an increased odds of experiencing physical IPV. Conclusions Alcohol use is associated with increased IPV and NPSV perpetration for men and (physical) IPV experience for women. Reported frequency of IPV and NPSV increase with increasing levels and frequency of alcohol use. Interventions aimed at reducing alcohol may also lead to reductions in IPV and NPSV perpetration and experience.