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Original Contributions

A Descriptive Analysis of Emergency Medical Service Systems Participating in the Resuscitation Outcomes Consortium (ROC) Network

, MD, , PhD, , MSc, , PhD, , MD, MS, , MD, , MSc, , NREMT-P, , NREMT-P, , NREMT-P & , MD show all
Pages 369-382 | Received 01 Jun 2006, Accepted 14 Jun 2007, Published online: 02 Jul 2009
 

Abstract

Background. The optimal Emergency Medical Services (EMS) system characteristics have not been defined, resulting in substantial variability across systems. The Resuscitation Outcomes Consortium (ROC) is a United States-Canada research network that organized EMS agencies from 11 different systems to perform controlled trials in cardiac arrest andlife-threatening trauma resuscitation. Objectives. To describe EMS systems participating in ROC using a novel framework. Methods. Standardized surveys were created by ROC investigators anddistributed to each site for completion. These included separate questions for individual hospitals, EMS agencies, anddispatch centers. Results were collated andanalyzed by using descriptive statistics. Results. A total of 264 EMS agencies, 287 hospitals, and154 dispatch centers were included. Agencies were described with respect to the type (fire-based, non-fire governmental, private), transport status (transport/non-transport), andtraining level (BLS/ALS). Hospitals were described with regard to their trauma designation andthe presence of electrophysiology andcardiac catheterization laboratories. Dispatch center characteristics, including primary versus secondary public safety answering point (PSAP) status andthe use of prearrival instructions, were also described. Differences in EMS system characteristics between ROC sites were observed with multiple intriguing patterns. Rural areas andfire-based agencies had more EMS units andproviders per capita. This may reflect longer response andtransport distances in rural areas andthe additional duties of most fire-based providers. In addition, hospitals in the United States typically had catheterization laboratories, whereas Canadian hospitals generally did not. The vast majority of both primary andsecondary PSAPs use computer-aided dispatch. Conclusions. Similarities anddifferences among EMS systems participating in the ROC network were described. The framework used in this analysis may serve as a template for future EMS research.

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