208115 Dissemination of an interactive mapping application for trauma systems planning

Tuesday, November 10, 2009: 4:50 PM

Brendan Carr, MD , University of Pennsylvania, Philadelphia, PA
Anthony Carlini , Center for Injury Research and Policy, Johns Hopkins, Baltimore, MD
Harry Teter, JD , American Trauma Society, Upper Marlboro, MD
Charles C. Branas, PhD , Center for Clinical Epidemiology and Biostatistics, University of Pennsylvania, Philadelphia, PA
Background: The American Trauma Society's interactive web-based trauma mapping tool represents a novel approach to emergency medical systems planning. This web-based application calculates population access to a Trauma Center (TC) and provides a visually representative map demonstrating TC access by ground or air ambulance.

Objective: To demonstrate the change in web use and in access to trauma care associated with the application's dissemination campaign.

Methods: Our campaign from 5/1/06-11/30/06 consisted of 7 national presentations, 2 national mailings, and 4 national media spots. Web use was defined by number of web hits, visits, and page-views. Trauma system change was defined as number of TC, number of helicopter depots (HDs), and population access to trauma care. Linear regression was used to test for trend.

Results: In 2005, the US trauma system had 446 TCs, 571 HDs, and provided 54.9% of the US population TC access within 60 minutes by ground and 81.1% by ground or air ambulance. Over the study period the website received an average of 450 hits, 17 visitors, and 81 page views/day. Website use significantly increased over the study period at an average rate of 0.28 hits/day (p=0.004), 0.04 visits/day (p<0.001), & 0.08 page views/day (p<0.001). Concurrently, the US trauma system added 14 TCs, 86 HDs, and increased population TC access within 60 minutes to 56.4% by ground and to 82.6% by ground or air ambulance.

Conclusions: Interactive web-based mapping could be used to inform the broader development of the emergency care system.

Learning Objectives:
Learning Objectives: 1. Explain how an interactive mapping tool can be used to inform trauma systems planning. 2. Describe the impact of a dissemination campaign to ensure stakeholder awareness. 3. Discuss the implications of population level emergency medical systems planning for other disease conditions requiring prompt medical care.

Keywords: EMS/Trauma, Policy/Policy Development

Presenting author's disclosure statement:

Qualified on the content I am responsible for because: My current research is national in scope, including a multi-state study of trauma centers and emergency medical services funded by the Agency for Healthcare Research and Quality. I am a peer reviewer for numerous publications including the American Journal of Public Health and the American Journal of Epidemiology and is a member of the American College of Epidemiology, the Association for Health Services Research, the American Public Health Association, the Pennsylvania Public Health Association, and the Institute for Operations Research and the Management Sciences.
Any relevant financial relationships? No

I agree to comply with the American Public Health Association Conflict of Interest and Commercial Support Guidelines, and to disclose to the participants any off-label or experimental uses of a commercial product or service discussed in my presentation.