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Mathematical modelling and simulation for planning critical care capacity

Costa, A. X., Ridley, S. A., Shahani, A. K., Harper, Paul Robert, de Senna, V. and Nielsen, M. S. 2003. Mathematical modelling and simulation for planning critical care capacity. Anaesthesia 58 (4) , pp. 320-327. 10.1046/j.1365-2044.2003.03042.x

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Abstract

Using average number of patients expected in a year, average length of stay and a target occupancy level to calculate the number of critical care beds needed is mathematically incorrect because of nonlinearity and variability in the factors that control length of stay. For a target occupancy in excess of 80%, this simple calculation will typically underestimate the number of beds required. More seriously, it provides no quantitative guidance information about other aspects of critical care demand such as the numbers of emergency patients transferred, deferral rates for elective patients and overall utilisation. The combination of appropriately analysing raw data and detailed mathematical modelling provides a much better method for estimating numbers of beds required. We describe this modelling approach together with evidence of its performance.

Item Type: Article
Date Type: Publication
Status: Published
Schools: Mathematics
Subjects: Q Science > QA Mathematics
R Medicine > R Medicine (General)
Uncontrolled Keywords: Intensive care: organisation and administration, trends, utilisation
Publisher: Wiley
ISSN: 0003-2409
Last Modified: 04 Jun 2017 03:47
URI: http://orca.cf.ac.uk/id/eprint/26463

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