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[Seasonal variation of acute myocardial infarction deaths in Chile]

Jaime Cerda1, Claudia Bambs1

  • 1Departamento de Salud Pública, Facultad de Medicina, Pontificia Universidad Católica de Chile, Santiago, Chile.

Revista Medica De Chile
|November 9, 2021
PubMed

Insights

Deaths from acute myocardial infarction (AMI) in Chile show a distinct seasonal pattern, with significantly more fatalities occurring during the winter months compared to summer. This finding highlights the importance of winter-related cardiovascular disease prevention strategies.

Area of Science:

  • Cardiology
  • Public Health
  • Epidemiology

Background:

  • Cardiovascular diseases (CVD) exhibit increased incidence during winter.
  • Understanding seasonal variations in mortality is crucial for public health interventions.

Purpose of the Study:

  • To investigate seasonal variations in deaths attributed to acute myocardial infarction (AMI) in Chile.
  • To quantify the extent of seasonal patterns in AMI mortality.

Main Methods:

  • Utilized Chilean Ministry of Health death report databases from 2001-2016.
  • Analyzed AMI deaths (ICD-10 codes I21, I22, I23) using a geometric sinusoidal model.

Main Results:

  • A total of 93,349 corrected AMI deaths were recorded between 2001-2016.
  • Winter accounted for 29.2% of AMI deaths, while summer had 21.8%.
  • A significant sinusoidal pattern was observed, with a peak-to-low death ratio of 1.41 and peaks occurring in July for most years.

Conclusions:

  • Acute myocardial infarction deaths in Chile demonstrate a pronounced seasonal variation.
  • Mortality peaks in winter and reaches its lowest point in summer, underscoring seasonal risk factors.
Abstract

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