Cardiac arrest & resuscitation
Community basic life support training, automated external defibrillator coverage, and bystander intervention in witnessed out-of-hospital cardiac arrest
Main finding · Bystander CPRResult — go to the resultAdjusted odds ratio 1.56 95% CI 1.14–2.14Authors' conclusion
Higher community BLS training rates were associated with a higher odds of bystander CPR, whereas neither BLS training rates nor AED coverage were associated with bystander AED use.
Study context
- Population
- Witnessed out-of-hospital cardiac arrest (OHCA) cases in the 25 administrative districts of Seoul, South Korea, 2017–2021
- Participants
- 6,280 witnessed OHCA cases
- Exposure
- Highest vs lowest quartile of community basic life support (BLS) training rates; Automated external defibrillator (AED) coverage
- Outcome
- Bystander CPR and AED use
Methodological detailsmixed-effects logistic regression, Firth's penalized logistic regression
- Mixed-effects logistic regression
- Firth's penalized logistic regression
Main finding
Bystander CPR
Adjusted odds ratio
1.56
95% CI 1.14–2.14
Highest quartile vs Lowest quartile
aOR 1.56 (95% CI 1.14–2.14)
As reported in the abstract
- Bystander CPR without AED (all cases)
- 67.0% (4207/6280)
- Bystander CPR with AED (all cases)
- 0.7% (47/6280)
Observational data: associations, not effects.
Further findings
- Neither community BLS training rates nor AED coverage associated with bystander AED use; no significant interaction
Original publication
Community basic life support training, automated external defibrillator coverage, and bystander intervention in witnessed out-of-hospital cardiac arrest. Resuscitation. Published 17 April 2026. doi:10.
Composed by AI from the published abstract and checked against it. How Briefs are made →