Evidence map›Paper›PMID 12217989›Full record

ArticleBMJ (Clinical research ed.)2002

Potential impact of public access defibrillators on survival after out of hospital cardiopulmonary arrest: retrospective cohort study.

Jill P Pell, Jane M Sirel, Andrew K Marsden, Ian Ford, Nicola L Walker, Stuart M Cobbe

Abstract read
In one paragraph

Article in BMJ (Clinical research ed.), 2002. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
15citing papers in PubMed, 1 pooled it
–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

15 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Guideline
  2. Review
  3. Article
  4. Article
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  6. Article
  7. Article
  8. Review
  9. Article
  10. Article
  11. [Automated external defibrillators: perspectives and outlook].Herzschrittmachertherapie & Elektrophysiologie · 2005
    Review
  12. Article
  13. Article
  14. Article
  15. Outcome after cardiac arrest outside hospital.BMJ (Clinical research ed.) · 2002
    Article
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

6 authors.

Jill P PellDepartment of Medical Cardiology, University of Glasgow, G31 2ER, b Scottish Ambulance Service Headquarters, Edinburgh EH10 5UU.
Jane M Sirel
Andrew K Marsden
Ian Ford
Nicola L Walker
Stuart M Cobbe

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectiveTo estimate the potential impact of public access defibrillators on overall survival after out of hospital cardiac arrest.

designRetrospective cohort study using data from an electronic register. A statistical model was used to estimate the effect on survival of placing public access defibrillators at suitable or possibly suitable sites.

settingScottish Ambulance Service. SUBJECTS: Records of all out of hospital cardiac arrests due to heart disease in Scotland in 1991-8.

main outcome measuresObserved and predicted survival to discharge from hospital.

resultsOf 15 189 arrests, 12 004 (79.0%) occurred in sites not suitable for the location of public access defibrillators, 453 (3.0%) in sites where they may be suitable, and 2732 (18.0%) in suitable sites. Defibrillation was given in 67.9% of arrests that occurred in possibly suitable sites for locating defibrillators and in 72.9% of arrests that occurred in suitable sites. Compared with an actual overall survival of 744 (5.0%), the predicted survival with public access defibrillators ranged from 942 (6.3%) to 959 (6.5%), depending on the assumptions made regarding defibrillator coverage.

conclusionsThe predicted increase in survival from targeted provision of public access defibrillators is less than the increase achievable through expansion of first responder defibrillation to non-ambulance personnel, such as police or firefighters, or of bystander cardiopulmonary resuscitation. Additional resources for wide scale coverage of public access defibrillators are probably not justified by the marginal improvement in survival.

Indexed as

Health Services AccessibilityCardiopulmonary ResuscitationCohort StudiesCost-Benefit AnalysisElectric CountershockEmergency TreatmentEquipment and SuppliesHeart ArrestHumansPrognosisRetrospective StudiesScotlandSurvival Analysis

Identifiers

PMID12217989
PMCPMC121330

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.