Heat Stress Non-Linear, Exposure-Lag-Response Case-Crossover Analysis
Video
Team Information
Team Members
Stephen Lewandowski, PhD Candidate, Environmental Health Sciences, Columbia University Mailman School of Public Health
Faculty Advisor: Jeffrey Shaman, Professor, Environmental Health Sciences (in the International Research Institute for Climate and Society/Earth Institute); and Director, Climate and Health Program, Columbia University Mailman School of Public Health
Abstract
Heat stress illnesses (HSIs), including heat stroke and heat exhaustion, have historically posed a risk to the health and readiness of service members. This environmental health threat is increasing with the emergence of more extreme hot and humid conditions. Despite this growing threat, few studies have examined the daily-scale effect of outdoor heat on HSI morbidity. In this study, we examined case-defined active-duty servicemember HSI morbidity outcomes from 1998-2019 at 24 installations in the continental United States. We applied a case-crossover design, using distributed-lag, nonlinear models (DLNMs) to examine exposure-lag-response effects for mean and maximum daily values of ambient temperature, heat index (HI), and wet-bulb globe temperature (WBGT). Our results characterize HSI risk and inform selection of indices to represent heat and humidity.
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Contact: Stephen Lewandowski (use form to send email)
