Acute cardiac care & resuscitation
Association between bystander automated external defibrillator use and survival in witnessed out-of-hospital cardiac arrest: A nationwide observational study in South Korea
Main finding · Survival to dischargeResult — go to the resultAdjusted odds ratio 1.01 95% CI 0.70–1.44Authors' conclusion
Survival to discharge or favorable neurological outcomes of patients with OHCA managed using bystander-applied AEDs and those without showed no significant difference.
Study context
- Population
- Adult out-of-hospital cardiac arrest (OHCA) cases treated with bystander intervention, Korean national OHCA surveillance database, January 2016 to December 2021of 182,508 OHCA cases
- Participants
- 35,840 cases
- Exposure
- Bystander cardiopulmonary resuscitation (CPR) with AED vs without AED
- AEDn = 234
- Outcome
- Survival to discharge
Methodological detailspropensity-score matched, nationwide
- Propensity-score matched
- Nationwide
Main finding
Survival to discharge
Adjusted odds ratio
1.01
95% CI 0.70–1.44
By group
AED vs Non-AED
aOR 1.01 (95% CI 0.70–1.44)
As reported in the abstract
Observational data: associations, not effects.
Further findings
| Outcome | aOR (95% CI) | |
|---|---|---|
| Favorable neurological outcomes | 1.08 (0.99–1.18) | |
| 0.512Adjusted odds ratio (log scale) |
Original publication
Association between bystander automated external defibrillator use and survival in witnessed out-of-hospital cardiac arrest: A nationwide observational study in South Korea. Resuscitation. Published 4 September 2024. doi:10.
Summarised from the published abstract; every number is checked against it