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Current trends in stroke events, mortality, and case fatality in Switzerland: an epidemiologic update

Martin Hänsel1, Emanuel Mauch2, Charlotte Micheloud2

  • 1Department of Neurology and Clinical Neuroscience Center, University Hospital Zurich and University of Zurich, Zurich,Switzerland.

International Journal of Epidemiology
|June 12, 2025
PubMed

Insights

Stroke event rates and discharges increased in Switzerland between 2004 and 2017. However, stroke mortality and case fatality rates approximately halved, indicating improved stroke recognition and treatment.

Area of Science:

  • Cardiovascular epidemiology
  • Public health surveillance
  • Neurology

Background:

  • Stroke remains a significant cardiovascular disease globally and in Switzerland.
  • Previous epidemiologic data for Swiss stroke events, mortality, and case fatalities (CF) were from 2004.
  • Changes in risk factors, increased life expectancy, and advancements in stroke care necessitate updated epidemiological insights.

Purpose of the Study:

  • To provide an updated epidemiological analysis of stroke in Switzerland.
  • To compare stroke event rates, mortality, and case fatality between 2004 and 2017.
  • To assess the impact of evolving risk factors and healthcare interventions on stroke outcomes.

Main Methods:

  • Utilized data from the Federal Hospital Discharge Statistics (HOST) and Cause of Death (CoD) databases for 2017.
  • Analyzed stroke diagnoses (ICD 10: I60-I64) from 1,470,259 hospital discharges and 66,971 deaths.
  • Calculated discharge rates, event rates, in- and out-of-hospital case fatality, and mortality rates.

Main Results:

  • Stroke discharges in Switzerland rose from 13,996 in 2004 to 26,032 in 2017.
  • Age-standardized stroke event rates per 100,000 increased significantly in both women and men.
  • Despite increased event rates, the absolute number of stroke deaths decreased, with overall mortality and case fatality rates approximately halving since 2004.

Conclusions:

  • Stroke event incidence and hospital discharge rates have increased in Switzerland.
  • Significant reductions in overall stroke mortality and case fatality rates were observed.
  • These improvements likely stem from enhanced stroke recognition, advanced treatments, and potentially better management of cardiovascular risk factors.
Abstract

Keywords:
Switzerlandcase fatalitycerebrovascular diseaseepidemiologymortalitystroke

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