Observational studyJournal of the American Heart Association2022
Activation of Citizen Responders to Out-of-Hospital Cardiac Arrest During the COVID-19 Outbreak in Denmark 2020.
Observational study in Journal of the American Heart Association, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.
What it found
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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.
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.
Who cites it
6 citing papers in PubMed.
- Volunteer Responder Recruitment, Voluntary Deployment of Automated External Defibrillators, and Coverage of Out-of-Hospital Cardiac Arrest in Denmark.Journal of the American Heart Association · 2025Article
- Advancements in Public First Responder Programs for Out-of-Hospital Cardiac Arrest: An Updated Literature Review.Reviews in cardiovascular medicine · 2025Review
- Key Features in Designing an Integrated Recall System for Dispatch in Mass Casualty Incidents; a Systematic Review.Archives of academic emergency medicine · 2024Review
- No fear: Willingness of smartphone activated first responders to assist with cardiac arrest during the COVID-19 pandemic.Resuscitation plus · 2023Article
- Early modelling of the effects and healthcare costs of the Dutch citizen-rescuer system for out-of-hospital cardiac arrests.PloS one · 2023Article
- Increased bystander intervention when volunteer responders attend out-of-hospital cardiac arrest.Frontiers in cardiovascular medicine · 2022Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
10 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Background Little is known about how COVID-19 influenced engagement of citizen responders dispatched to out-of-hospital cardiac arrest (OHCA) by a smartphone application. The objective was to describe and analyze the Danish Citizen Responder Program and bystander interventions (both citizen responders and nondispatched bystanders) during the first COVID-19 lockdown in 2020. Methods and Results All OHCAs from January 1, 2020, to June 30, 2020, with citizen responder activation in 2 regions of Denmark were included. We compared citizen responder engagement for OHCA in the nonlockdown period (January 1, 2020, to March 10, 2020, and April 21, 2020, to June 30, 2020) with the lockdown period (March 11, 2020, to April 20, 2020). Data are displayed in the order lockdown versus nonlockdown period. Bystander cardiopulmonary resuscitation rates did not differ in the 2 periods (99% versus 92%;
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Registered trials
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