Mathematical Modeling of the Impact of Hospital Occupancy : When Do Dwindling Hospital Beds Cause ED Gridlock?
Joint Authors
Arthur, Annette O.
Thomas, Stephen H.
Brantley, Michael
Whelan, Lori
Burns, Boyd
Haas, Tyler
Source
Advances in Emergency Medicine
Issue
Vol. 2014, Issue 2014 (31 Dec. 2014), pp.1-5, 5 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2014-07-15
Country of Publication
Egypt
No. of Pages
5
Main Subjects
Abstract EN
Objectives.
The time emergency department (ED) patients spend from presentation to admittance is known as their length of stay (LOS).
This study aimed to quantify the inpatient occupancy rate (InptOcc)/ED LOS relationship and develop a methodology for identifying resource-allocation triggers using InptOcc-LOS association-curve inflection points.
Methods.
This study was conducted over 200 consecutive days at a 700-bed hospital with an annual ED census of approximately 50,000 using multivariate spline (piecewise) regression to model the InptOcc/LOS relationship while adjusting for confounding covariates.
Nonlinear modeling was used to assess for InptOcc/LOS associations and determine the inflection point where InptOcc profoundly impacted LOS.
Results.
At lower InptOcc, there was no association.
Once InptOcc reached ≥88%, there was a strong InptOcc/LOS association; each 1% InptOcc increase predicted a 16-minute (95% CI, 12–20 minutes) LOS prolongation, while the confounder-adjusted analysis showed each 1% InptOcc increase >89% precipitating a 13-minute (95% CI, 10–16 minutes) LOS prolongation.
Conclusions.
The study hospital’s InptOcc was a significant predictor of prolonged ED LOS beyond the identified inflection point.
Spline regression analysis identified a clear inflection point in the InptOcc-LOS curve that potentially identified a point at which to optimize inpatient bed availability to prevent increased costs of prolonged LOS.
American Psychological Association (APA)
Whelan, Lori& Burns, Boyd& Brantley, Michael& Haas, Tyler& Arthur, Annette O.& Thomas, Stephen H.. 2014. Mathematical Modeling of the Impact of Hospital Occupancy : When Do Dwindling Hospital Beds Cause ED Gridlock?. Advances in Emergency Medicine،Vol. 2014, no. 2014, pp.1-5.
https://search.emarefa.net/detail/BIM-506867
Modern Language Association (MLA)
Whelan, Lori…[et al.]. Mathematical Modeling of the Impact of Hospital Occupancy : When Do Dwindling Hospital Beds Cause ED Gridlock?. Advances in Emergency Medicine No. 2014 (2014), pp.1-5.
https://search.emarefa.net/detail/BIM-506867
American Medical Association (AMA)
Whelan, Lori& Burns, Boyd& Brantley, Michael& Haas, Tyler& Arthur, Annette O.& Thomas, Stephen H.. Mathematical Modeling of the Impact of Hospital Occupancy : When Do Dwindling Hospital Beds Cause ED Gridlock?. Advances in Emergency Medicine. 2014. Vol. 2014, no. 2014, pp.1-5.
https://search.emarefa.net/detail/BIM-506867
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-506867