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Extreme Heat Increases Mental Disorder ED Visits, Especially for Young Men

"Extreme Ambient Temperature and Differential Risk of Mental Disorder-Related Emergency Department Visit by Disorder, Sex and Age: A Case-Time Series…" — Journal of Korean medical science, 2026

April 5, 2026by AI Curated

Extreme Heat Increases Mental Disorder ED Visits, Especially for Young Men

What they found

Extreme high temperatures significantly increased emergency department (ED) visits for mental disorders. The relative risk (RR) for anxiety-related visits was 2.25 at extremely high temperatures, with men aged 20-39 showing a higher risk (RR 4.02) than women (RR 1.65).

What they studied

Researchers analyzed National Emergency Department Information System data from 2015-2021 in Korea to examine the link between extreme ambient temperatures and ED visits for common mental disorders. They used a case-time series design, stratifying risks by age and sex.

Takeaways

The abstract focuses on findings; it does not give personal how-to steps.

About this paper

This case-time series analysis used National Emergency Department Information System data from 2015-2021 in Korea, encompassing 1,351,463 ED visits for mental disorders. The study considered a lag period of 0-5 days for ambient temperature and air pollution. Risk estimates at extreme low temperatures were generally imprecise, except for specific cases not detailed in the abstract.

mental healthextreme weatheremergency departmentkoreatemperaturecuratedpublic health

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