The contribution of physical exertion to heat-related illness and death in the Arizona borderlands
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2025-06-01
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Final Accepted Manuscript
Affiliation
Department of Epidemiology and Biostatistics, Mel and Enid Zuckerman College of Public Health, The University of ArizonaSchool of Sociology, College of Social and Behavioral Sciences, The University of Arizona
School of Landscape Architecture and Planning, The University of Arizona
Issue Date
2023-06-01
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Elsevier LtdCitation
Chambers, S. N., Boyce, G. A., Martínez, D. E., Bongers, C. C., & Keith, L. (2023). The contribution of physical exertion to heat-related illness and death in the Arizona borderlands. Spatial and Spatio-temporal Epidemiology, 46, 100590.Rights
© 2023 Elsevier Ltd. All rights reserved.Collection Information
This item from the UA Faculty Publications collection is made available by the University of Arizona with support from the University of Arizona Libraries. If you have questions, please contact us at repository@u.library.arizona.edu.Abstract
Recent studies and reports suggest an increased mortality rate of undocumented border crossers (UBCs) in Arizona is the result of heat extremes and climatic change. Conversely, others have shown that deaths have occurred in cooler environments than in previous years. We hypothesized that human locomotion plays a greater role in heat-related mortality and that such events are not simply the result of exposure. To test our hypothesis, we used a postmortem geographic application of the human heat balance equation for 2,746 UBC deaths between 1990 and 2022 and performed regression and cluster analyses to assess the impacts of ambient temperature and exertion. Results demonstrate exertion having greater explaining power, suggesting that heat-related mortality among UBCs is not simply a function of extreme temperatures, but more so a result of the required physical exertion. Additionally, the power of these variables is not static but changes with place, time, and policy.Note
24 month embargo; first published 01 June 2023EISSN
1877-5853PubMed ID
37500227Version
Final accepted manuscriptae974a485f413a2113503eed53cd6c53
10.1016/j.sste.2023.100590
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