A casemix model for estimating the impact of hospital access block on the emergency department

Emergency Medicine Australasia : EMA
Peter Stuart

Abstract

To determine the ED activity and costs resulting from access block. A casemix model (AWOOS) was developed to measure activity due to access block. Using data from four hospitals between 1998 and 2002, ED activity was measured using the urgency and disposition group (UDG) casemix model and the AWOOS model with the purpose of determining the change in ED activity due to access block. Whilst the mean length of stay in ED (admitted patients) increased by 93% between 1998 and 2002, mean UDG activity increased by 0.63% compared to a mean increase in AWOOS activity of 24.5%. The 23.9% difference between UDG and AWOOS activity represents the (unmeasured) increase in ED activity and costs for the period 1998-2002 resulting from access block. The UDG system significantly underestimates the activity in EDs experiencing marked access block.

References

May 25, 1999·The Journal of Emergency Medicine·J Thompson
Dec 30, 1999·Annals of Emergency Medicine·R W Derlet, J R Richards
Feb 7, 2001·Academic Emergency Medicine : Official Journal of the Society for Academic Emergency Medicine·P Viccellio
Mar 29, 2002·Annals of Emergency Medicine·Robert W Derlet
Apr 27, 2002·Australian Health Review : a Publication of the Australian Hospital Association·Delia Hendrie, Duncan Boldy
Jul 26, 2002·Australian Health Review : a Publication of the Australian Hospital Association·Eileen Willis
Jan 29, 2003·Emergency Medicine·UNKNOWN Australasian College for Emergency Medicine

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Citations

May 23, 2006·Emergency Medicine Australasia : EMA·Michael Dinh, Matthew Chu
Dec 17, 2009·Emergency Medicine Australasia : EMA·Drew RichardsonDebra Kerr

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