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Seniors at Risk: Heat Alerts Too High?
23 Mar
Summary
- Some seniors face increased heat risk at 90°F, lower than current city alerts.
- ER visits for heat-related issues spiked at 90°F for vulnerable New Yorkers.
- Effective heat warnings may need neighborhood-specific adjustments for seniors.
Heat waves may pose a danger to some urban seniors at temperatures below those currently used to declare heat emergencies, according to new research. A study published in JAMA Network Open indicates that the risk of heat stroke and death among certain elderly individuals rises sharply when the heat index reaches 90 degrees Fahrenheit or higher for at least two consecutive days.
This finding contrasts with current practices in cities like New York, which typically issue heat alerts and open cooling centers when the heat index hits 95 degrees Fahrenheit for two days, or 100 degrees at any time. Researchers noted that emergency department use among vulnerable older patients spiked around 90°F, suggesting a need for revised emergency protocols.
The study tracked seniors aged 65 and older in New York City during the summers of 2022-2024. At one hospital serving a diverse patient population, heat-associated emergencies began increasing at 66°F, with the highest risks between 90°F and 101°F. Researchers estimated that earlier alerts at 90°F could have prevented approximately 116 ER visits during the study period.
Notably, no significant association between heat and health emergencies was found at a second hospital serving more affluent, privately insured patients. This suggests that effective heat warnings may require customization based on the specific communities served by individual hospitals, leveraging electronic health record data to identify precise risk thresholds and target interventions appropriately.
