NDLI: Defining frequent use of an urban emergency department.

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Defining frequent use of an urban emergency department.

Content Provider	World Health Organization (WHO)-Global Index Medicus
Author	Locker, Thomas E. Baston, Simon Mason, Suzanne M. Nicholl, Jon
Description	Country affiliation: United kingdom Author Affiliation: Locker TE ( School of Health and Related Research, University of Sheffield, Sheffield, UK. t.locker@sheffield.ac.uk)
Abstract	OBJECTIVE: This study aimed to develop a definition of frequent use of an emergency department (ED) by comparing differences in the observed frequency distribution with that of a theoretical frequency distribution. METHODS: A retrospective analysis of attendance of ED and minor injury unit attendances in one city over 1 year was conducted. From these data, the expected frequency distribution was determined based upon a Poisson distribution. RESULTS: During the period studied, 75,141 people attended on 98,908 occasions. The theoretical frequency distribution showed that there were 2764 (3.7%) 'frequent users' presenting repeatedly due to non-random events. These patients made 12,316 (12.4%) attendances. Frequent users were older than chance users (mean age 49.7 vs 44.5 years). A greater proportion arrived by ambulance (55.3% vs 27.5%), presented with psychiatric problems (5.8% vs 1.1%) or alcohol intoxication (1.3% vs 0.5%), and were admitted to hospital (37.4% vs 19.6%). CONCLUSION: We have identified that there is a group of patients who present repeatedly due to non-random events, confirming the existence of 'frequent users'. Their characteristics are clearly different to other patients in the ED. We propose that 'frequent users' be defined as any patient who makes more than four attendances per year.
File Format	HTM / HTML
ISSN	14720205
e-ISSN	14720213
Journal	Emergency Medicine Journal
Issue Number	6
Volume Number	24
Language	English
Publisher	BMJ Publishing Group Ltd
Publisher Date	2007-06-01
Publisher Place	Great Britain (UK)
Access Restriction	Open
Subject Keyword	Discipline Emergency Discipline Medicine Emergency Service, Hospital Utilization Hospitals, Urban Age Distribution Alcoholic Intoxication Epidemiology Length Of Stay Statistics & Numerical Data Marital Status Mental Disorders Reference Values Retrospective Studies Sex Distribution Transportation Of Patients Wounds And Injuries
Content Type	Text
Resource Type	Article
Subject	Emergency Medicine Critical Care and Intensive Care Medicine

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