Temporal trends and disparities in heat-related cardiovascular mortality in the United States (1999–2024): a CDC WONDER analysis - Scorecard - MDSpire

Temporal trends and disparities in heat-related cardiovascular mortality in the United States (1999–2024): a CDC WONDER analysis

  • By

  • Hassaan Abid

  • Gaaitri Lohano

  • Muhammad Vazaym

  • Muhammad Jawad

  • Rimsha Adnan

  • Muhammad Mohid Haroon

  • June 24, 2026

  • 0 min

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Clinical Scorecard: Trends and Inequities in Cardiovascular Deaths Linked to Heat Exposure in the U.S. (1999–2024): An Analysis Using CDC WONDER Data

At a Glance

CategoryDetail
ConditionHeat-related cardiovascular mortality
Key MechanismsHeat exposure exacerbates cardiovascular conditions through dehydration, peripheral vasodilation, reduced central blood volume, and increased cardiac workload.
Target PopulationAdults aged ≥25 years
Care SettingPublic health analysis using CDC WONDER data

Key Highlights

  • 10,731 deaths identified from heat-related cardiovascular conditions from 1999 to 2024.
  • Significant increase in mortality observed from 2015 to 2024 (APC: 17.58%; p < 0.001).
  • Males and Hispanic populations showed the most pronounced increases in mortality.
  • Regional disparities noted, with the highest burden in the Western and Southern U.S.

Guideline-Based Recommendations

Diagnosis

  • Identify heat-related conditions using ICD-10 codes T67 for heat-related deaths and I00-I99 for circulatory diseases.

Management

  • Implement public health responses including heat warning systems and targeted prevention strategies.

Monitoring & Follow-up

  • Analyze trends in heat-related cardiovascular mortality across demographics and regions.

Risks

  • Increased risk of mortality in individuals with pre-existing cardiovascular conditions during extreme heat events.

Patient & Prescribing Data

Adults aged ≥25 years with underlying cardiovascular conditions.

Consider environmental factors such as heat exposure in the management of cardiovascular health.

Clinical Best Practices

  • Utilize multiple cause-of-death data to capture the full impact of heat exposure on cardiovascular mortality.
  • Focus on demographic and geographic disparities to inform public health interventions.

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