Intimate partner violence is a major public health problem globally affecting women of reproductive age, particularly in low- and middle-income countries. The study assessed prevalence and associated factors of intimate partner violence among reproductive women in Teso South sub-county, Busia County, Kenya. A community-based cross-sectional study was conducted in Amukura Ward within Teso South sub-county among 250 eligible reproductive women, selected using a systematic random sampling technique. Data was collected using a pretested, validated structured questionnaire adopted and customized from the World Health Organization's Violence Against Women. EpiData Manager version 4.2 was for data coding and cleaning. PSS v.20 was used for statistical data analysis. Descriptive statistics were summarized using frequencies and percentages. Bivariate and multivariate logistic regression models to assess factors associated with intimate partner violence, with significance set at p < 0.05. Among the 250 interviewed women, 37.2% (95% CI: 31.2% - 43.2%) had experienced a form of violence in the last 12 months, with 41.2%, 40.8%, and 14.0% experiencing physical violence, psychological violence, and sexual violence, respectively. Multivariate logistic regression models showed that women aged 30 years or more, housewives, were in an arranged relationship, and were in a relationship of over ten years had higher odds of experiencing intimate partner violence. Similarly, women whose partners aged above 40 years, consumed alcohol, and had aggressive status were more likely to experience intimate partner violence. Additionally, women who were unmarried and attained tertiary education had a lower likelihood of experiencing intimate partner violence. Intimate partner violence remains a major problem in Busia County, driven by socio-demographic and relationship dynamics. There is an urgent need for context-specific, community-driven IPV programs integrating routine screening, male engagement, alcohol reduction interventions, and economic empowerment targeting high-risk women and partners.
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