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Relations Between Residential Proximity to EPA-Designated Toxic Release Sites and Diffuse Large B-Cell Lymphoma Incidence.

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posted on 20.09.2017, 00:00 by Bulka C, Nastoupil LJ, Koff JL, Bernal-Mizrachi L, Ward KC, Williams JN, Bayakly AR, Switchenko JM, Waller LA, Flowers CR
OBJECTIVES: Examining the spatial patterns of diffuse large B-cell lymphoma (DLBCL) incidence and residential proximity to toxic release locations may provide insight regarding environmental and sociodemographic risk factors. METHODS: We linked and geocoded cancer incidence data for the period 1999-2008 from the Georgia Comprehensive Cancer Registry with population data from the US Census and the Environmental Protection Agency's Toxics Release Inventory. We conducted cluster analyses and constructed Poisson regression models to assess DLBCL incidence as a function of mean distance to the toxic release sites. RESULTS: In total, 3851 incident DLBCL cases occurred among adults residing in Georgia between 1999 and 2008. Significant focal clustering was observed around 57% of ethylene oxide sites, 5% of benzene sites, 9% of tetrachloroethylene sites, 7% of styrene sites, 10% of formaldehyde sites, 5% of trichloroethylene sites, and 10% of all release sites. Mean distance to sites was significantly associated with DLBCL risk for all chemicals. CONCLUSIONS: Proximity to Toxics Release Inventory sites can be linked to increased DLBCL risk as assessed through focal clustering and Poisson regression, and confirmatory studies using geospatial mapping can aid in further specifying risk factors for DLBCL.

Funding

Grant Support: R21 CA158686/CA/NCI NIH HHS/United States

History

Publisher Statement

This is a non-final version of an article published in final form in Bulka, C., Nastoupil, L. J., Koff, J. L., Bernal-Mizrachi, L., Ward, K. C., Williams, J. N., Bayakly, A. R., Switchenko, J. M., Waller, L. A. and Flowers, C. R. Relations between residential proximity to EPA-designated toxic release sites and diffuse large b-cell lymphoma incidence. Southern Medical Journal. 2016. 109(10): 606-614. DOI:10.14423/SMJ.0000000000000545.

Publisher

Lippincott, Williams & Wilkins

issn

0038-4348

Issue date

01/10/2016

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