The impact of delays to admission from the emergency department on inpatient outcomes

BMC Emerg Med. 2010 Jul 9:10:16. doi: 10.1186/1471-227X-10-16.

Abstract

Background: We sought to determine the impact of delays to admission from the Emergency Department (ED) on inpatient length of stay (LOS), and IP cost.

Methods: We conducted a retrospective analysis of 13,460 adult (>or= 18 yrs) ED visits between April 1 2006 and March 30 2007 at a tertiary care teaching hospital with two ED sites in which the mode of disposition was admission to ICU, surgery or inpatient wards. We defined ED Admission Delay as ED time to decision to admit > 12 hours. The primary outcomes were IP LOS, and total IP cost.

Results: Approximately 11.6% (n = 1558) of admitted patients experienced admission delay. In multivariate analysis we found that admission delay was associated with 12.4% longer IP LOS (95% CI 6.6% - 18.5%) and 11.0% greater total IP cost (6.0% - 16.4%). We estimated the cumulative impact of delay on all delayed patients as an additional 2,183 inpatient days and an increase in IP cost of $2,109,173 at the study institution.

Conclusions: Delays to admission from the ED are associated with increased IP LOS and IP cost. Improving patient flow through the ED may reduce hospital costs and improve quality of care. There may be a business case for investments to reduce emergency department admission delays.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Adult
  • Aged
  • Aged, 80 and over
  • Efficiency, Organizational / economics*
  • Efficiency, Organizational / statistics & numerical data
  • Emergency Service, Hospital / economics
  • Emergency Service, Hospital / organization & administration*
  • Emergency Service, Hospital / statistics & numerical data
  • Female
  • Hospital Bed Capacity / statistics & numerical data
  • Humans
  • Inpatients / statistics & numerical data*
  • Length of Stay / economics
  • Male
  • Middle Aged
  • Ontario / epidemiology
  • Outcome and Process Assessment, Health Care / organization & administration
  • Patient Admission / economics*
  • Patient Admission / statistics & numerical data
  • Patient Transfer / economics*
  • Patient Transfer / statistics & numerical data
  • Retrospective Studies
  • Time Factors
  • Total Quality Management / economics
  • Young Adult