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Long-Term Exposure to Ambient Fine Particulate Matter and Renal Function in Older Men: The Veterans Administration Normative Aging Study

Mehta, Amar J. ; Zanobetti, Antonella ; Bind, Marie-Abele C. ; Kloog, Itai ; Koutrakis, Petros ; Sparrow, David ; Vokonas, Pantel S. ; Schwartz, Joel D.

Mehta, Amar J., Antonella Zanobetti, Marie-Abele C. Bind, Itai Kloog, Petros Koutrakis, David Sparrow, Pantel S. Vokonas, and Joel D. Schwartz. 2016. “Long-Term Exposure to Ambient Fine Particulate Matter and Renal Function in Older Men: The Veterans Administration Normative Aging Study.” Environmental Health Perspectives 124 (9): 1353-1360. doi:10.1289/ehp.1510269. http://dx.doi.org/10.1289/ehp.1510269. [Peer Reviewed Journal]

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  • Title:
    Long-Term Exposure to Ambient Fine Particulate Matter and Renal Function in Older Men: The Veterans Administration Normative Aging Study
  • Author/Creator: Mehta, Amar J. ; Zanobetti, Antonella ; Bind, Marie-Abele C. ; Kloog, Itai ; Koutrakis, Petros ; Sparrow, David ; Vokonas, Pantel S. ; Schwartz, Joel D.
  • Language: English
  • Subjects: Research
  • Is Part Of: Mehta, Amar J., Antonella Zanobetti, Marie-Abele C. Bind, Itai Kloog, Petros Koutrakis, David Sparrow, Pantel S. Vokonas, and Joel D. Schwartz. 2016. “Long-Term Exposure to Ambient Fine Particulate Matter and Renal Function in Older Men: The Veterans Administration Normative Aging Study.” Environmental Health Perspectives 124 (9): 1353-1360. doi:10.1289/ehp.1510269. http://dx.doi.org/10.1289/ehp.1510269.
  • Description: Background: It is unknown if ambient fine particulate matter (PM2.5) is associated with lower renal function, a cardiovascular risk factor. Objective: We investigated whether long-term PM2.5 exposure was associated with estimated glomerular filtration rate (eGFR) in a cohort of older men living in the Boston Metropolitan area. Methods: This longitudinal analysis included 669 participants from the Veterans Administration Normative Aging Study with up to four visits between 2000 and 2011 (n = 1,715 visits). Serum creatinine was measured at each visit, and eGFR was calculated according to the Chronic Kidney Disease Epidemiology Collaboration equation. One-year exposure to PM2.5 prior to each visit was assessed using a validated spatiotemporal model that utilized satellite remote-sensing aerosol optical depth data. eGFR was modeled in a time-varying linear mixed-effects regression model as a continuous function of 1-year PM2.5, adjusting for important covariates. Results: One-year PM2.5 exposure was associated with lower eGFRs; a 2.1-μg/m3 interquartile range higher 1-year PM2.5 was associated with a 1.87 mL/min/1.73 m2 lower eGFR [95% confidence interval (CI): –2.99, –0.76]. A 2.1 μg/m3-higher 1-year PM2.5 was also associated with an additional annual decrease in eGFR of 0.60 mL/min/1.73 m2 per year (95% CI: –0.79, –0.40). Conclusions: In this longitudinal sample of older men, the findings supported the hypothesis that long-term PM2.5 exposure negatively affects renal function and increases renal function decline. Citation: Mehta AJ, Zanobetti A, Bind MC, Kloog I, Koutrakis P, Sparrow D, Vokonas PS, Schwartz JD. 2016. Long-term exposure to ambient fine particulate matter and renal function in older men: the VA Normative Aging Study. Environ Health Perspect 124:1353–1360; http://dx.doi.org/10.1289/ehp.1510269
  • Identifier: ISSN: 0091-6765 ; DOI: 10.1289/ehp.1510269