Evidence map›Paper›PMID 28320803›Full record

ArticleCirculation2017

Ranking Businesses and Municipal Locations by Spatiotemporal Cardiac Arrest Risk to Guide Public Defibrillator Placement.

Christopher L F Sun, Steven C Brooks, Laurie J Morrison, Timothy C Y Chan, Rescu Epistry Investigators

Abstract read
PubMed Full text at PMC Publisher
In one paragraph

Article in Circulation, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers.

0numbers the graph read from it
0cells of the map it votes in
11citing 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

11 citing papers in PubMed.

  1. Trial
  2. Article
  3. Article
  4. Strategic PAD positioning: a scoping review.Scandinavian journal of trauma, resuscitation and emergency medicine · 2025
    Article
  5. Optimizing placement of public-access naloxone kits using geospatial analytics: a modelling study.CMAJ : Canadian Medical Association journal = journal de l'Association medicale canadienne · 2025
    Article
  6. Article
  7. Review
  8. Article
  9. Article
  10. Article
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4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

5 authors.

Christopher L F SunFrom Department of Mechanical and Industrial Engineering (C.L.F.S., T.C.Y.C.) and Division of Emergency Medicine, Department of Medicine (L.J.M.), University of Toronto, ON, Canada; Department of Emergency Medicine, Queen's University at Kingston, ON, Canada (S.C.B.); and Rescu, Li Ka Shing Knowledge Institute, St. Michael's Hospital, Toronto, ON, Canada (S.C.B., L.J.M., T.C.Y.C.).
Steven C BrooksFrom Department of Mechanical and Industrial Engineering (C.L.F.S., T.C.Y.C.) and Division of Emergency Medicine, Department of Medicine (L.J.M.), University of Toronto, ON, Canada; Department of Emergency Medicine, Queen's University at Kingston, ON, Canada (S.C.B.); and Rescu, Li Ka Shing Knowledge Institute, St. Michael's Hospital, Toronto, ON, Canada (S.C.B., L.J.M., T.C.Y.C.).
Laurie J MorrisonFrom Department of Mechanical and Industrial Engineering (C.L.F.S., T.C.Y.C.) and Division of Emergency Medicine, Department of Medicine (L.J.M.), University of Toronto, ON, Canada; Department of Emergency Medicine, Queen's University at Kingston, ON, Canada (S.C.B.); and Rescu, Li Ka Shing Knowledge Institute, St. Michael's Hospital, Toronto, ON, Canada (S.C.B., L.J.M., T.C.Y.C.).
Timothy C Y ChanFrom Department of Mechanical and Industrial Engineering (C.L.F.S., T.C.Y.C.) and Division of Emergency Medicine, Department of Medicine (L.J.M.), University of Toronto, ON, Canada; Department of Emergency Medicine, Queen's University at Kingston, ON, Canada (S.C.B.); and Rescu, Li Ka Shing Knowledge Institute, St. Michael's Hospital, Toronto, ON, Canada (S.C.B., L.J.M., T.C.Y.C.). tcychan@mie.utoronto.ca.
Rescu Epistry Investigators

Funding

Resuscitation Outcomes Consortium (ROC) Data Coordinating CenterU01HL077863 · NHLBI · UNIVERSITY OF WASHINGTON · PI MAY, SUSANNE · 2004 to 2015
$125.1M
Resuscitation Outcomes Consortium (ROC) Regional Clinical Center-Toronto RegionalU01HL077872 · NHLBI · ST. MICHAEL'S HOSPITAL · PI MORRISON, LAURIE · 2004 to 2015
$1.9M
NHLBI NIH HHS U01 HL077863NHLBI NIH HHS U01 HL077872
6 · The paper itself

Abstract

backgroundEfforts to guide automated external defibrillator placement for out-of-hospital cardiac arrest (OHCA) treatment have focused on identifying broadly defined location categories without considering hours of operation. Broad location categories may be composed of many businesses with varying accessibility. Identifying specific locations for automated external defibrillator deployment incorporating operating hours and time of OHCA occurrence may improve automated external defibrillator accessibility. We aim to identify specific businesses and municipal locations that maximize OHCA coverage on the basis of spatiotemporal assessment of OHCA risk in the immediate vicinity of franchise locations.

methodsThis study was a retrospective population-based cohort study using data from the Toronto Regional RescuNET Epistry cardiac arrest database. We identified all nontraumatic public OHCAs occurring in Toronto, ON, Canada, from January 2007 through December 2015. We identified 41 unique businesses and municipal location types with ≥20 locations in Toronto from the YellowPages, Canadian Franchise Association, and the City of Toronto Open Data Portal. We obtained their geographic coordinates and hours of operation from Web sites, by phone, or in person. We determined the number of OHCAs that occurred within 100 m of each location when it was open (spatiotemporal coverage) for Toronto overall and downtown. The businesses and municipal locations were then ranked by spatiotemporal OHCA coverage. To evaluate temporal stability of the rankings, we calculated intraclass correlation of the annual coverage values.

resultsThere were 2654 nontraumatic public OHCAs. Tim Hortons ranked first in Toronto, covering 286 OHCAs. Starbucks ranked first in downtown, covering 110 OHCAs. Coffee shops and bank machines from the 5 largest Canadian banks occupied 8 of the top 10 spots in both Toronto and downtown. The rankings exhibited high temporal stability with intraclass correlation values of 0.88 (95% confidence interval, 0.83-0.93) in Toronto and 0.79 (95% confidence interval, 0.71-0.86) in downtown.

conclusionsWe identified and ranked businesses and municipal locations by spatiotemporal OHCA risk in their immediate vicinity. This approach may help policy makers and funders to identify and prioritize potential partnerships for automated external defibrillator deployment in public-access defibrillator programs.

Indexed as

AdultAgedCanadaCohort StudiesDatabases, FactualDefibrillatorsFemaleHumansMaleMiddle AgedOut-of-Hospital Cardiac ArrestPublic HealthRetrospective Studiesdefibrillatorsheart arrestresuscitation

Identifiers

PMID28320803
PMCPMC5363283

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.