Community-level influences on women's experience of intimate partner violence and modern contraceptive use in Nigeria: a multilevel analysis of nationally representative survey.

Background : Modern contraceptives (MC) are important strategies for reducing unwanted pregnancies, unsafe abortion and maternal mortality, but MC remains low at 18% in Nigeria. Similarly, while there is increasing prevalence of intimate partner violence (IPV) in Nigeria, its effects on contraceptive use remain unclear. This study examined the influence of IPV on MC use, while adjusting for individual- and community-level confounders. Methods : The study utilized 2018 Nigeria Demographic and Health Survey data. We performed multilevel binary logistic regression analysis on 24,973 married women aged 15-49 49 (nested within 1,400 communities), who were sexually active and were not pregnant at the time of the survey. Results : Findings show that use of MC was higher among married women who reported experience of IPV than those without IPV exposure. After adjusting for individual-level and contextual factors, the odds of using MC was significantly higher among women who experienced any form of IPV (OR: 1.61, 95% CI: 1.17-2.21, p<0.005) compared to those who reported no IPV experience. Around one-quarter of the total variance in contraceptive use with respect to the different types of IPV could be explained at the community level. Conclusion : The study provides empirical evidence that there is significant community effect on IPV exposure and women's contraceptive uptake. Attention must therefore be given to the context-specific social and gender norms that affect women's sexual and reproductive health in Nigeria.