A systematic approach in defining readmission

Demir, Eren and Chaussalet, Thierry J. (2009) A systematic approach in defining readmission. In: Proceedings of the 22nd IEEE International Symposium on Computer-Based Medical Systems (CBMS 2009). IEEE, pp. 1-7. ISBN 9781424448791

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Official URL: http://dx.doi.org/10.1109/CBMS.2009.5255354


In the majority of studies on hospital readmissions, a readmission is deemed to have occurred if a patient is admitted within a time window of the previous discharge date. However, these time windows have rarely been objectively justified. This paper develops a framework to determine the optimal time window in defining patient readmissions. First, we capture the readmission process by fitting a special case of a Coxian phase-type distribution, which is expressed as a mixture of two generalized Erlang distributions. Second, we apply the minimum classification error approach to compute the optimal time window. Using the English national hospital episodes statistic (HES) dataset, we demonstrate the usefulness of the approach in the case of chronic obstructive pulmonary disease (COPD), stroke, congestive heart failure (CHF), and clinical conditions associated with hip and thigh fractured patients.

Item Type: Book Section
Subjects: University of Westminster > Science and Technology > Electronics and Computer Science, School of (No longer in use)
Depositing User: Miss Nina Watts
Date Deposited: 11 Nov 2010 11:09
Last Modified: 11 Nov 2010 11:09
URI: http://westminsterresearch.wmin.ac.uk/id/eprint/8839

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