County-level air quality and the prevalence of diagnosed chronic kidney disease in the US Medicare population

Jennifer Bragg-Gresham, Hal Morgenstern, William McClellan, Sharon Saydah, Meda Pavkov, Desmond Williams, Neil Powe, Delphine Tuot, Raymond Hsu, Rajiv Saran and for the Centers for Disease Control and Prevention CKD Surveillance System

PLOS ONE, 2018, vol. 13, issue 7, 1-13

Abstract: Background: Considerable geographic variation exists in the prevalence of chronic kidney disease across the United States. While some of this variability can be explained by differences in patient-level risk factors, substantial variability still exists. We hypothesize this may be due to understudied environmental exposures such as air pollution. Methods: Using data on 1.1 million persons from the 2010 5% Medicare sample and Environmental Protection Agency air-quality measures, we examined the association between county-level particulate matter ≤2.5 μm (PM2.5) and the prevalence of diagnosed CKD, based on claims. Modified Poisson regression was used to estimate associations (prevalence ratios [PR]) between county PM2.5 concentration and individual-level diagnosis of CKD, adjusting for age, sex, race/ethnicity, hypertension, diabetes, and urban/rural status. Results: Prevalence of diagnosed CKD ranged from 0% to 60% by county (median = 16%). As a continuous variable, PM2.5 concentration shows adjusted PR of diagnosed CKD = 1.03 (95% CI: 1.02–1.05; p

Date: 2018
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Persistent link: https://EconPapers.repec.org/RePEc:plo:pone00:0200612

DOI: 10.1371/journal.pone.0200612

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