• Claire Pearson, Deborah S Kim, Valerie H Mika, S Imran Ayaz, Scott R Millis, Robert Dunne, and Phillip D Levy.
• Department of Emergency Medicine, Wayne State University, 4201 St. Antoine St., Detroit, MI 48201, United States. Electronic address: cpearson@med.wayne.edu.
• Am J Emerg Med. 2018 Aug 1; 36 (8): 1327-1331.

ObjectivesTo identify health beliefs of emergency department (ED) patients with low acuity conditions and how these affect ambulance (AMB) utilization.MethodsWe performed a prospective, observational study on a convenience sample of patients 18years or older, who presented to the ED of an urban, academic hospital with an Emergency Severity Index (ESI) triage level of 4 or 5. Demographics, treatment, and disposition data were obtained along with self-administered surveys. Characteristics of patients with low acuity conditions who presented to the ED by AMB were compared to the patients who came to the ED by private transportation (PT). Data were analyzed with the chi-square test, t-test, and Mann-Whitney test.ResultsA total of 197 patients (97 AMB and 100 PT) were enrolled. Compared to PT, AMB patients were more likely to: be insured (82% vs. 56%; p=0.000), have a primary care provider (62% vs. 44%; p=0.048), and lack a regular means of transportation (53% vs. 33%; p=0.005). Three surveys were used the SF-8, Short Test of Functional Health Literacy in Adults [STOFHLA], and Health Belief Model [HBM]. Answers to HBM showed patients perceive that their illness required care within one hour of arrival (38% vs. 21%; p=0.04), have used an ambulance in the past year (76% vs. 33%; p=0.001) and to utilize an ambulance in the future for similar concerns (53% vs. 15%; p=0.000). AMB patients were more likely to call an ambulance for any health concern (p=0.035) and felt that there were enough ambulances for all patients in the city (p=0.01). There were no differences in age, employment, level of income and education, nor hospital admission rate between groups.ConclusionsAmbulance use in low-acuity ED patients is associated with misperceptions regarding severity of illness and resource allocation as well as limited access to private transportation. Understanding patient perceptions of illness and other barriers to receiving care is imperative for the development of interventions aimed at enabling change in health behaviors such as the elective use of limited resources.Copyright © 2018 Elsevier Inc. All rights reserved.

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