ArticleBMC public health2025
Female homicides in Brazil before and during the COVID-19 pandemic: an interrupted time-series analysis.
Article in BMC public health, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
backgroundThe COVID-19 pandemic has influenced violence against women worldwide, but its impact on female homicides in low- and middle-income countries remains poorly understood. Brazil, which records some of the highest female homicide rates globally, provides a critical setting to examine this association. This study assessed the temporal association between the pandemic and monthly female homicide rates in Brazil from January 2017 to December 2022.
methodsWe applied an interrupted time series (ITS) design with quasi-Poisson regression to estimate changes in homicide levels and trends after the pandemic onset, adjusting for serial autocorrelation and seasonality. Pre-pandemic trend linearity was tested, and sensitivity and placebo analyses were performed. To address underreporting and deaths classified as undetermined intent, homicide counts were corrected for misclassification.
resultsFrom 2017 to 2022, 23,727 female homicides were recorded, corresponding to an adjusted mortality rate of 5.09 per 100,000 women, a 16.0% increase after correction. Rates were highest in the North and Northeast. Domestic homicides exceeded those in public spaces (1.50 vs. 1.37 per 100,000 women), and firearms were the predominant method. The Northeast showed a significant level change with an abrupt increase (RR = 1.236; p = 0.002), followed by a progressive decline (RR = 0.9923; p < 0.001). In other regions, across age groups, and in blunt-related cases, no significant level change occurred (p > 0.05), although downward trends emerged during the pandemic (p < 0.05).
conclusionsFindings warrant cautious interpretation due to ITS constraints, sensitivity to the observation window, and omitted variables. Nonetheless, persistently high female homicide rates in Brazil, particularly in the Northeast, highlight the need to strengthen mortality surveillance, improve misclassification corrections, and adopt region-specific prevention strategies, including firearm control, protective services, and targeted social policies.
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