What question did this study set out to answer?

To examine the relationship between extreme heat events and emergency department visits for heat-related illnesses across 10 U.S. Health and Human Service Regions from 2018 to 2025.

August 20, 2026International Journal of Environmental Research and Public HealthOpen Access

Extreme Heat and Emergency Health Impacts in the US (2018–2025)

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To examine the relationship between extreme heat events and emergency department visits for heat-related illnesses across 10 U.S. Health and Human Service Regions from 2018 to 2025.
Analyzed daily emergency department visit rates per 100,000 population alongside gridded daily maximum temperature and population-weighted heat index data across 10 U.S. regions (2018–2025).
Modeled associations between peak heat events and emergency visits using log-linear mixed-effects models, adjusting for seasonal trends, climate metrics, and socioeconomic vulnerability factors.
Maximum temperature and heat index were both significant predictors of emergency department visits, with the heat index providing a better model fit and more consistent regional stability.
Associations peaked contemporaneously at lag zero, though emergency department visits began increasing several days prior to peak environmental heat conditions.

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Implication

Observational study reveals increased emergency department visits during extreme heat events, highlighting the need for real-time health system adaptation.

Cite This Study

Hecht et al. (2026) studied this question.

synapsesocial.com/papers/6a86b4cb8a91293e6a1cc553 https://doi.org/10.3390/ijerph23081074

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Implication

Observational study reveals increased emergency department visits during extreme heat events, highlighting the need for real-time health system adaptation.

Extreme Heat and Emergency Health Impacts in the US (2018–2025)

Key Points

Discussion

Implication

Cite This Study

Extreme Heat and Emergency Health Impacts in the US (2018–2025)

Key Points

Discussion

Implication

Cite This Study

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