The impact of inpatient boarding on ED efficiency: A discrete-event simulation study

Aaron E Bair, Wheyming T. Song, Yi Chun Chen, Beth A. Morris

Research output: Contribution to journalArticle

49 Scopus citations

Abstract

In this study, a discrete-event simulation approach was used to model Emergency Department's (ED) patient flow to investigate the effect of inpatient boarding on the ED efficiency in terms of the National Emergency Department Crowding Scale (NEDOCS) score and the rate of patients who leave without being seen (LWBS). The decision variable in this model was the boarder-released-ratio defined as the ratio of admitted patients whose boarding time is zero to all admitted patients. Our analysis shows that the Overcrowded+ (a NEDOCS score over 100) ratio decreased from 88.4% to 50.4%, and the rate of LWBS patients decreased from 10.8% to 8.4% when the boarder-released-ratio changed from 0% to 100%. These results show that inpatient boarding significantly impacts both the NEDOCS score and the rate of LWBS patient and this analysis provides a quantification of the impact of boarding on emergency department patient crowding.

Original languageEnglish (US)
Pages (from-to)919-929
Number of pages11
JournalJournal of Medical Systems
Volume34
Issue number5
DOIs
StatePublished - Oct 2010

Keywords

  • Discrete event simulation (DES)
  • Emergency department overcrowding
  • Leaving without being seen (LWBS)
  • National Emergency Department Crowding Scale (NEDOCS)

ASJC Scopus subject areas

  • Medicine (miscellaneous)
  • Health Informatics
  • Health Information Management
  • Information Systems

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