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Open AccessArticle

Mortality and Morbidity during Extreme Heat Events and Prevalence of Outdoor Work: An Analysis of Community-Level Data from Los Angeles County, California

1
UCLA Labor Occupational Safety and Health Program, Los Angeles, CA 90095, USA
2
Department of Medicine Statistics Core, David Geffen School of Medicine at UCLA, Los Angeles, CA 90024, USA
3
Division of General Internal Medicine and Health Services Research, David Geffen School of Medicine, University of California at Los Angeles, Los Angeles, CA 90024, USA
4
Center for Public Health and Disasters, Fielding School of Public Health, University of California at Los Angeles, Los Angeles, CA 90024, USA
*
Author to whom correspondence should be addressed.
Int. J. Environ. Res. Public Health 2018, 15(4), 580; https://doi.org/10.3390/ijerph15040580
Received: 16 February 2018 / Revised: 20 March 2018 / Accepted: 20 March 2018 / Published: 23 March 2018
(This article belongs to the Special Issue Public Health and Disasters)
Heat is a well-recognized hazard for workers in many outdoor settings, yet few investigations have compared the prevalence of outdoor work at the community level and rates of heat-related mortality and morbidity. This analysis examines whether heat-related health outcomes occur more frequently in communities with higher proportions of residents working in construction, agriculture, and other outdoor industries. Using 2005–2010 data from Los Angeles County, California, we analyze associations between community-level rates of deaths, emergency department (ED) visits, and hospitalizations during summer heat events and the prevalence of outdoor work. We find generally higher rates of heat-related ED visits and hospitalizations during summer heat events in communities with more residents working outdoors. Specifically, each percentage increase in residents working in construction resulted in an 8.1 percent increase in heat-related ED visits and a 7.9 percent increase in heat-related hospitalizations, while each percentage increase in residents working in agriculture and related sectors resulted in a 10.9 percent increase in heat-related ED visits. The findings suggest that outdoor work may significantly influence the overall burden of heat-related morbidity at the community level. Public health professionals and healthcare providers should recognize work and employment as significant heat risk factors when preparing for and responding to extreme heat events. View Full-Text
Keywords: extreme heat; community health; occupational health; outdoor work; climate change extreme heat; community health; occupational health; outdoor work; climate change
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Riley, K.; Wilhalme, H.; Delp, L.; Eisenman, D.P. Mortality and Morbidity during Extreme Heat Events and Prevalence of Outdoor Work: An Analysis of Community-Level Data from Los Angeles County, California. Int. J. Environ. Res. Public Health 2018, 15, 580.

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