The Half-Cycle Correction: Banish Rather Than Explain It

Barendregt, JJ (2009) The Half-Cycle Correction: Banish Rather Than Explain It. MEDICAL DECISION MAKING, 29 4: 500-502. doi:10.1177/0272989X09340585


Author Barendregt, JJ
Title The Half-Cycle Correction: Banish Rather Than Explain It
Journal name MEDICAL DECISION MAKING   Check publisher's open access policy
ISSN 0272-989X
Publication date 2009-07-01
Year available 2009
Sub-type Article (original research)
DOI 10.1177/0272989X09340585
Open Access Status
Volume 29
Issue 4
Start page 500
End page 502
Total pages 3
Editor Mark Helfland
Place of publication United States
Publisher Sage Publications
Language eng
Subject C1
920502 Health Related to Ageing
111711 Health Information Systems (incl. Surveillance)
Abstract The half-cycle correction is often used in discrete Markov models to estimate state membership. This article shows that the correction, in addition to being unintuitive, actually produces the wrong results in many circumstances. These include quality-adjusted life year (QALY) weights and unit costs that differ by cycle. The half-cycle correction is also incompatible with discounting of the obtained stream of state membership. It is furthermore shown that the life table method of estimating state membership obtains correct results under these circumstances and is also much more transparent. The article concludes that the half-cycle correction should be dropped in favor of the life table method.
Keyword Markov Models
Q-Index Code C1
Q-Index Status Confirmed Code
Grant ID 351558
Institutional Status UQ

Document type: Journal Article
Sub-type: Article (original research)
Collections: 2010 Higher Education Research Data Collection
School of Public Health Publications
 
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Citation counts: TR Web of Science Citation Count  Cited 16 times in Thomson Reuters Web of Science Article | Citations
Scopus Citation Count Cited 17 times in Scopus Article | Citations
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Created: Thu, 03 Sep 2009, 17:45:18 EST by Mr Andrew Martlew on behalf of School of Public Health