ArticleJournal of the American Heart Association2026
Critical Temperature Thresholds for Identifying Vulnerability to Heat-Related Excess Cardiovascular Morbidity and Mortality.
Article in Journal of the American Heart Association, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.
What it found
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
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Who cites it
3 citing papers in PubMed.
- Identifying heat-related diagnoses in emergency department visits among adults in Chicago: A heat-wide association study.Science advances · 2026Article
- Increasing Urban Tree Canopy Associated With Reduced Mortality: A Longitudinal Analysis of Chicago Neighborhoods.GeoHealth · 2026Article
- Relationships between GPS-derived outdoor activity space ambient heat exposure, mental health, and salivary cortisol in a longitudinal, repeated measures sample of adult Detroiters.Research square · 2026Article
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Authors and funding
5 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundExtreme heat is a well-established environmental hazard linked to elevated cardiovascular disease (CVD) morbidity and mortality, yet few studies evaluate temperature effects across multiple temporal scales or identify community-specific vulnerability.
methodsWe analyzed neighborhood-level CVD deaths and emergency department visits linked to sociodemographic characteristics and high-resolution temperature and humidity estimates. Generalized additive models with smooth splines for temperature, humidity, age, and time estimated excess heat-related rates across temporal scales. Principal component analysis and k-means clustering classified Chicago community areas by multidimensional heat vulnerability.
resultsHigher temperatures were significantly associated with increased CVD and coronary heart disease mortality across warm-season, monthly, and daily scales but were not associated with cardiovascular emergency department visits. Peak warm-season thresholds for all CVD mortality occurred at 25.6 °C, corresponding to 20.7 excess deaths per 100 000 (SD 20.3;
conclusionsTemperature thresholds for cardiovascular mortality vary across temporal scales and CVD subtypes, with strongest associations for all CVD and coronary heart disease mortality. Integrating temperature-mortality relationships with community vulnerability profiles may support targeted heat warning systems and neighborhood-specific adaptation strategies.
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