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THE INCIDENCE OF SUDDEN CARDIAC DEATH IN AUSTRIA
F Halberg1, G Cornélissen, D Schnaiter
1Halberg Chronobiology Center, University of Minnesota, Minneapolis, USA.
Scripta Medica
|January 9, 2009
Summary
Sudden cardiac death (SCD) incidence in Austria exhibits a significant yearly rhythm. Chronobiological analysis revealed a distinct cis-half-year cycle, highlighting temporal patterns in SCD events.
Area of Science:
- Chronobiology
- Cardiovascular Epidemiology
- Public Health
Background:
- Sudden cardiac death (SCD) represents a significant public health concern.
- Understanding the temporal patterns of SCD is crucial for effective prevention strategies.
- Previous research has indicated circadian and seasonal variations in cardiovascular events.
Purpose of the Study:
- To investigate the time structure, or chronome, of sudden cardiac death (SCD) in Austria.
- To analyze the daily incidence of SCD over a defined period.
- To identify any significant temporal periodicities in SCD occurrence.
Main Methods:
- Utilized daily incidence data for SCD (ICD-10 I46.1) in Austria from January 2002 to December 2005.
- Data were analyzed separately for males and females.
- Employed linear-nonlinear rhythmometry for time series analysis.
Main Results:
- A significant temporal pattern, termed a cis-half-year, was detected in the daily incidence of SCD.
- The estimated period of this cis-half-year rhythm was validated nonlinearly as approximately 0.408 years (95% CI: 0.389, 0.426).
- The analysis revealed variability in total SCD incidence with this specific period.
Conclusions:
- Chronobiological analysis of SCD in Austria demonstrates significant temporal variability.
- A distinct cis-half-year periodicity influences the incidence of sudden cardiac death.
- These findings underscore the importance of considering temporal structures in SCD research and prevention.
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