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A Poor Association Between Out-of-Hospital Cardiac Arrest Location and Public Automated External Defibrillator Placement

  • Matthew J. Levy (a1) (a2) (a3), Kevin G. Seaman (a2), Michael G. Millin (a1), Richard A. Bissell (a3) and J. Lee Jenkins (a1)...

Much attention has been given to the strategic placement of automated external defibrillators (AEDs). The purpose of this study was to examine the correlation of strategically placed AEDs and the actual location of cardiac arrests.


A retrospective review of data maintained by the Maryland Institute for Emergency Medical Services Systems (MIEMSS), specifically, the Maryland Cardiac Arrest Database and the Maryland AED Registry, was conducted. Location types for AEDs were compared with the locations of out-of-hospital cardiac arrests in Howard County, Maryland. The respective locations were compared using scatter diagrams and r2 statistics.


The r2 statistics for AED location compared with witnessed cardiac arrest and total cardiac arrests were 0.054 and 0.051 respectively, indicating a weak relationship between the two variables in each case. No AEDs were registered in the three most frequently occurring locations for cardiac arrests (private homes, skilled nursing facilities, assisted living facilities) and no cardiac arrests occurred at the locations where AEDs were most commonly placed (community pools, nongovernment public buildings, schools/educational facilities).


A poor association exists between the location of cardiac arrests and the location of AEDs.

LevyMJ, SeamanKG, MillinMG, BissellRA, JenkinsJL. A Poor Association Between Out-of-Hospital Cardiac Arrest Location and Public Automated External Defibrillator Placement. Prehosp Disaster Med. 2013;28(4):1-6.

Corresponding author
Correspondence: Matthew J. Levy, DO, MSc Department of Emergency Medicine Johns Hopkins University Davis Building, Suite 3220 5801 Smith Avenue Baltimore, Maryland 21209 USA E-mail
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Prehospital and Disaster Medicine
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  • EISSN: 1945-1938
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