County-level socioeconomic factors and residential racial, Hispanic, poverty, and unemployment segregation associated with drug overdose deaths in the United States, 2010-2015

Authors: Cara L Frankenfeld, Department of Global and Community Health, George Mason University, Timothy Leslie*, George Mason University
Topics: Medical and Health Geography, Population Geography
Keywords: overdose, segregation
Session Type: Poster
Day: 4/4/2019
Start / End Time: 3:05 PM / 4:45 PM
Room: Lincoln 2, Marriott, Exhibition Level
Presentation File: Download

Purpose: To evaluate overdose death rates in relation to socioeconomic characteristics and measures of socioeconomic residential segregation at sub-state geography.
Methods: County overdose deaths were linked to socioeconomic characteristics that are related to social vulnerability. Dissimilarity and isolation segregation measures (comparing individual counties to the adjacent counties and state) and diversity were calculated for race, Hispanic ethnicity, poverty, and unemployment. Negative binomial regression was used to compare county characteristics to white, black, and Hispanic death rates.
Results: Percent civilian disabled was positively associated with mortality across race and Hispanic ethnicity group. Some discordant associations included percent poverty (inverse for white, positive for black), single parent households (inverse for black), racial/ethnicity minority (inverse for black, positive for Hispanic), mobile homes (inverse for black and white, positive for Hispanic), and uninsured (null for white, inverse for black and Hispanic), and per capita income (positive for white, inverse for Hispanic). Several residential segregation measures were also significantly associated with overdose death rates, and when stratified by race and Hispanic ethnicity, different magnitudes and directions of associations were observed.
Conclusions: These results provide directions for future studies, including roles of civilian disability, diversity, and evaluating differential impacts of segregation across racial and ethnic groups.

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