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Valuing EQ-5D health states: A review and analysis, CHERE Working Paper 2007/9

  • Richard Norman

    ()

    (CHERE, University of Technology, Sydney)

  • Paula Cronin

    ()

    (CHERE, University of Technology, Sydney)

  • Rosalie Viney

    ()

    (CHERE, University of Technology, Sydney)

  • Madeleine King

    ()

    (CHERE, University of Technology, Sydney)

  • Deborah Street

    ()

    (University of Technology, Sydney)

  • John Brazier
  • Julie Ratcliffe

Objective: To identify the key methodological issues in the construction of population-level EQ-5D / Time Trade-Off (TTO) preference elicitation studies. Study Design: This study involves three components. The first was to identify existing population-level EQ-5D TTO studies. The second was to illustrate and discuss the key areas of divergence between studies, including the international comparison of tariffs. The third was to portray the relative merits of each of the approaches, and to compare the results of studies across countries. Results: While most papers report use of the protocol developed in the original UK study, we identified three key areas of divergence in the construction and analysis of surveys. These are the number of health states valued in order to determine the algorithm for estimating all health states, the approach to valuing states worse than immediate death, and the choice of algorithm. Finally, the evidence on international comparisons suggests differences between countries, although it is difficult to disentangle differences in cultural attitudes with random error and differences due to methodological divergence. Conclusion: Differences in methods are likely to obscure true differences in values between countries. However, population-specific valuation sets for countries engaging in economic evaluation would better represent societal attitudes.

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File URL: http://www.chere.uts.edu.au/pdf/wp2007_9.pdf
File Function: First version, October 2007
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Paper provided by CHERE, University of Technology, Sydney in its series Working Papers with number 2007/9.

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Date of creation: Oct 2007
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Handle: RePEc:her:chewps:2007/9
Contact details of provider: Postal: Level 4, 645 Harris Street, Ultimo, NSW 2007
Phone: +61 2 9514 9799
Fax: 61 2 9514 4730
Web page: http://www.chere.uts.edu.auEmail:


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  1. Nancy J. Devlin & Paul Hansen & Paul Kind & Alan Williams, 2003. "Logical inconsistencies in survey respondents' health state valuations - a methodological challenge for estimating social tariffs," Health Economics, John Wiley & Sons, Ltd., vol. 12(7), pages 529-544.
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