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A Preclinical Model of Exertional Heat Stroke in Mice

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Outcomes for a Heat Illness Prevention Program in Outdoor Workers: A 9-Year Overview.

William B Perkison¹, Caroline M Schaefer, Judith Green-McKenzie

¹From the Department of Epidemiology, Human Genetics and Environmental Sciences, Southwest Center for Occupational and Environmental Health, University of Texas Health Science Center, Houston, School of Public Health, Houston, Texas (W.B.P., R.W.R.); Department of Management, Policy, and Community Health, University of Texas Health Science Center, Houston, School of Public Health, Houston, Texas (C.M.S.); Division of Occupational and Environmental Medicine, Department of Emergency Medicine, University of Pennsylvania Perelman School of Medicine, Philadelphia, Pennsylvania (J.G.-M.); Department of Emergency Medicine, University of Pennsylvania Perelman School of Medicine, Philadelphia, Pennsylvania (F.S.); and Concentra, Medical Surveillance Services, Irwindale, California (R.S.M.).

Journal of Occupational and Environmental Medicine

|January 19, 2024

Summary

Removing medical surveillance from a heat illness prevention program (HIPP) led to a small increase in heat-related illness (HRI) among outdoor workers. This suggests medical surveillance is crucial for effective HRI prevention.

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Area of Science:

Occupational Health
Environmental Medicine
Public Health

Background:

Heat-related illness (HRI) poses a significant risk to outdoor workers.
Heat illness prevention programs (HIPP) are essential for mitigating these risks.
The impact of specific program components, like medical surveillance, requires evaluation.

Purpose of the Study:

To evaluate the effect of removing medical surveillance from a HIPP on HRI rates.
To analyze changes in HRI frequency and workers' compensation costs after program modification.

Main Methods:

Retrospective cohort study of 329 outdoor workers (2011-2019).
Comparison of HRI rates under a comprehensive HIPP versus a modified HIPP (mHIPP) without medical surveillance.
Analysis of workers' compensation data.

Main Results:

HRI rates decreased significantly during the initial HIPP (19.5 to 1.01 per 1000 workers).
Following the removal of medical surveillance in the mHIPP, HRI rates increased to 7.6 per 1000 workers.
The increase in HRI cases, though small, indicates a potential impact of removing medical surveillance.

Conclusions:

Medical surveillance may be a critical component of heat illness prevention programs.
The removal of medical surveillance from a HIPP may lead to an increase in heat-related illnesses.
Continued evaluation of HIPP components is necessary to optimize worker safety.