Coronary disease & ACSResearch article

The effect of urban heat island intensity on the rate of emergency department visits for acute myocardial infarctions

Eur J Prev CardiolPublished

  • Ecological study
  • census tract-level
  • publicly available data

Authors' conclusion

This study highlights the intersection of SUHII, AMI events, and various environmental and social factors within urban areas on a census tract-level.

Study context

Population
Residents of urban census tracts in California
Comparison
Median and high vs low surface urban heat island intensity (SUHII) exposure
Outcome
Predicted AMI event rate (ED visits)

Main finding

As reported in the abstract

Predicted AMI event rate
Median SUHII
increased acute myocardial infarction (AMI) event rate 17 %
High SUHII
increased AMI event rate 22%

Further findings

PM2.5 and Social Vulnerability Index (SVI)

Increasing PM2.5 and SVI associated with increasing predicted AMI event rates

Racial and ethnic composition

Tracts with higher % Hispanic, Black and American Indian individuals had higher predicted AMI event rates

Original publication

The effect of urban heat island intensity on the rate of emergency department visits for acute myocardial infarctions. Eur J Prev Cardiol. Published 17 December 2025. doi:10.1093/eurjpc/zwaf771

Summarised from the published abstract; every number is checked against it