Evidence map›Paper›PMID 37342237›Full record

ArticleOpen access emergency medicine : OAEM2023

Geographical Association Between Basic Life Support Courses and Bystander Cardiopulmonary Resuscitation and Survival from OHCA in Denmark.

Theo Walther Jensen, Annette Kjær Ersbøll, Fredrik Folke, Mikkel Porsborg Andersen, Stig Nikolaj Blomberg, Mathias Geldermann Holgersen, Lars Bredevang Andersen, Freddy Lippert, Christian Torp-Pedersen, Helle Collatz Christensen

Abstract read
In one paragraph

Article in Open access emergency medicine : OAEM, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.

0numbers the graph read from it
0cells of the map it votes in
5citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

5 citing papers in PubMed.

  1. Trial
  2. Article
  3. PULSE survey: Population Survey on Knowledge, Gaps and Perception of Heart Rhythm disorders-an initiative of the Scientific Initiatives Committee of the European Heart Rhythm Association.Europace : European pacing, arrhythmias, and cardiac electrophysiology : journal of the working groups on cardiac pacing, arrhythmias, and cardiac cellular electrophysiology of the European Society of Cardiology · 2025
    Article
  4. Article
  5. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

10 authors.

Theo Walther JensenEmergency Medical Services Region Zealand, Naestved, Denmark.
Annette Kjær ErsbøllCopenhagen Emergency Medical Services, University of Copenhagen, Copenhagen, Denmark.
Fredrik FolkeDepartment of Clinical Medicine, University of Copenhagen, Copenhagen, Denmark.
Mikkel Porsborg AndersenDepartment of Cardiology, Nordsjaellands Hospital, Hilleroed, Denmark.ORCID 0000-0001-6162-5205
Stig Nikolaj BlombergEmergency Medical Services Region Zealand, Naestved, Denmark.
Mathias Geldermann HolgersenDepartment of Clinical Medicine, University of Copenhagen, Copenhagen, Denmark.
Lars Bredevang AndersenEmergency Medical Services Region Zealand, Naestved, Denmark.
Freddy LippertDepartment of Clinical Medicine, University of Copenhagen, Copenhagen, Denmark.ORCID 0000-0002-2356-8809
Christian Torp-PedersenDepartment of Cardiology, Nordsjaellands Hospital, Hilleroed, Denmark.ORCID 0000-0003-2892-6131
Helle Collatz ChristensenEmergency Medical Services Region Zealand, Naestved, Denmark.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Introduction: Annually, approximately 4% of the entire adult population of Denmark participate in certified basic life support (BLS) courses. It is still unknown whether increases in BLS course participation in a geographical area increase bystander cardiopulmonary resuscitation (CPR) or survival from out-of-hospital cardiac arrest (OHCA). The aim of the study was to examine the geographical association between BLS course participation, bystander CPR, and 30-day survival from OHCA. Methods: This nationwide register-based cohort study includes all OHCAs from the Danish Cardiac Arrest Register. Data concerning BLS course participation were supplied by the major Danish BLS course providers. A total of 704,234 individuals with BLS course certificates and 15,097 OHCA were included from the period 2016-2019. Associations were examined using logistic regression and Bayesian conditional autoregressive analyses conducted at municipality level. Results: A 5% increase in BLS course certificates at municipality level was significantly associated with an increased likelihood of bystander CPR prior to ambulance arrival with an adjusted odds ratio (OR) of 1.34 (credible intervals: 1.02;1.76). The same trends were observed for OHCAs in out-of-office hours (4pm-08am) with a significant OR of 1.43 (credible intervals: 1.09;1.89). Local clusters with low rate of BLS course participation and bystander CPR were identified. Conclusion: This study found a positive effect of mass education in BLS on bystander CPR rates. Even a 5% increase in BLS course participation at municipal level significantly increased the likelihood of bystander CPR. The effect was even more profound in out-of-office hours with an increase in bystander CPR rate at OHCA.

Indexed as

basic life supportconditional autoregressive regressionepidemiologygeographysurvival

Identifiers

PMID37342237
PMCPMC10278866

What OpenQuestion holds

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Registered trials

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.