Cardiac arrest & resuscitation
Training in Basic Life Support and Bystander-Performed Cardiopulmonary Resuscitation and Survival in Out-of-Hospital Cardiac Arrests in Denmark, 2005 to 2019
Main finding · Annual 30-day survival per 5% increase in BLS course participation rateResult — go to the resultOR for 30-day survival 1.14 95% CI 1.10–1.18Authors' conclusion
In this cohort study of Danish BLS course participation and survival, a positive association was found between annual rate of mass education in BLS and 30-day survival from OHCA. The association of BLS course participation rate on 30-day survival was mediated by the bystander CPR rate; approximately 60% of the association of BLS course participation rate on 30-day survival was based on factors other than increased CPR rates.
Study context
- Population
- All Out-of-hospital Cardiac Arrest (OHCA) incidents in the Danish Cardiac Arrest Register, 2005–2019
- Participants
- 51,057 OHCA incidents
- Exposure
- Annual basic life support (BLS) course participation rate
- Outcome
- 30-day survival after OHCA
- Follow-up
- 30 days
Methodological detailsnationwide registry, logistic regression, bayesian mediation analysis
- Nationwide registry
- Logistic regression
- Bayesian mediation analysis
Main finding
As reported in the abstract
OR for 30-day survival
1.14
95% CI 1.10–1.18
P < 0.001
Per 5% increase in BLS course participation, as printed
Observational data: associations, not effects.
Further findings
Proportion of association mediated by bystander cardiopulmonary resuscitation (CPR) rate (bayesian mediation analysis)
- Average mediated proportion (95% QBCI 0.049-0.818; P = .01)
- 0.39
- 39% of association mediated through increased bystander CPR rate
Original publication
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