Abstract 18115: Ranking Businesses and Municipal Locations by Spatiotemporal Cardiac Arrest Risk to Guide Public Defibrillator Placement
Background: Efforts to guide AED placement for out-of-hospital cardiac arrest (OHCA) treatment have focused on identifying broadly defined location types without considering hours of operation. Broad location types may be composed of many businesses with varying accessibility. Identifying specific locations for AED deployment incorporating operating hours of operation and time of OHCA occurrence may improve AED accessibility.
Objective: To identify specific businesses and municipal locations that maximize OHCA coverage based on spatiotemporal assessment of OHCA risk in the immediate vicinity of franchise locations.
Methods: We identified all atraumatic public OHCAs occurring in Toronto, Canada from Jan. 2007–Dec. 2015. We identified 41 unique businesses and municipal location types with 20 or more locations in Toronto from the YellowPages, Canadian Franchise Association, and the City of Toronto. We obtained geographic coordinates and hours of operation from websites, 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. To evaluate temporal stability, we calculated intra-class correlation (ICC) of the annual coverage values.
Results: There were 2,654 atraumatic 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 five largest Canadian banks occupied eight of the top 10 spots in both Toronto and downtown. The rankings exhibited high temporal stability with ICC values of 0.88 (95% CI, 0.83-0.93) in Toronto and 0.79 (95% CI, 0.71-0.86) in downtown.
Conclusion: We 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 AED deployment.
Author Disclosures: C.L. Sun: None. S.C. Brooks: None. L.J. Morrison: Employment; Modest; Laurie J. Morrison is supported by the Robert and Dorothy Pitts Chair in Emergency Medicine and Acute Care, Li Ka Shing Knowledge Institute, St Michael’s Hospital. Research Grant; Modest; She holds operating grants in the same content area from Heart and Stroke Foundation of Canada and the Canadian Institute of Health Research. Other Research Support; Modest; Received salary support from the National Institute of Health for her role as Principal Investigator for the Toronto Regional Coordinating Centre for the Resuscitation Outcomes Consortium. T.C. Chan: None.
- © 2016 by American Heart Association, Inc.