ArticleJournal of epidemiology and community health2026
Examining the association between county racialised economic segregation and fatal overdose in US counties, 2018-2022.
Article in Journal of epidemiology and community health, 2026. 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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6 authors.
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Abstract
backgroundBetween 2022 and 2023, overdose mortality decreased among non-Hispanic (NH) white people but stayed the same or increased among people of colour in the USA. County racialised economic segregation may contribute to overdose mortality.
methodsWe used a Bayesian spatiotemporal approach to assess the association between racialised economic segregation quintile and overdose deaths (overall and race-stratified) in 3133 US counties from 2018 to 2022. Segregation was measured using the Index of Concentration at the Extremes for race/ethnicity and income (ICE
resultsCounties with the highest proportion of lower-income racially minoritised residents (Q1) had an increased RR of overdose deaths compared with Q5 counties, both overall (aRRs 1.64 (1.51-1.78); 1.40 (1.29-1.52)), and among subgroups. Had all counties experienced the risk of Q5 counties, we estimated an average reduction in overdose deaths overall (RDs per 100 000: -7.20 (-8.25 to -6.10); -6.37 (-7.38 to -5.25)) and among subgroups.
conclusionCounty racialised economic segregation was associated with overdose mortality risk in 2018-2022. Investment in evidence-based strategies to reduce overdose risk in places experiencing harms related to racialised economic segregation is critical.
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