'Online' monitoring and retrospective analysis of hospital outcomes based on a scan statistic
Ismail, Noor A., Pettitt, Anthony N., & Webster, Ronald A. (2003) 'Online' monitoring and retrospective analysis of hospital outcomes based on a scan statistic. Statistics in Medicine, 22(18), pp. 2861-2876.
Statistical tests based on the scan statistic are introduced for detecting possible increases in the occurrence of hospital events. The tests use a moving window and the theoretical aspects of the tests are investigated using Markov chain theory. The main objective of this study is to provide a statistical technique to assist hospital sta in deciding whether the variation they observe is greater than usually expected under random variation. In this paper we develop the test for Poisson data and apply the theory to monitor the occurrence of orthopaedic wound infection and Methicillin-resistant Staphylococcus aureus colonization. We find that this method is sensitive in detecting the change in the process parameter which may not be detected by standard control chart methods. Both online and retrospective analyses are considered.
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|Item Type:||Journal Article|
|Additional Information:||For more information, please refer to the journal's website (see hypertext link).|
|Keywords:||adverse events, health care, Markov chain, process control, retrospective analysis surveillance|
|Subjects:||Australian and New Zealand Standard Research Classification > MATHEMATICAL SCIENCES (010000)|
Australian and New Zealand Standard Research Classification > MATHEMATICAL SCIENCES (010000) > STATISTICS (010400) > Applied Statistics (010401)
|Divisions:||Past > QUT Faculties & Divisions > Faculty of Science and Technology|
|Copyright Owner:||Copyright 2003 John Wiley & Sons|
|Deposited On:||10 Jun 2004|
|Last Modified:||29 Feb 2012 23:01|
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