Valuing EQ-5D health states: A review and analysis, CHERE Working Paper 2007/9
AbstractObjective: 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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Bibliographic InfoPaper provided by CHERE, University of Technology, Sydney in its series Working Papers with number 2007/9.
Date of creation: Oct 2007
Date of revision:
health state valuation; EQ5-D;
Find related papers by JEL classification:
- I10 - Health, Education, and Welfare - - Health - - - General
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- 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.
- Richard Norman & Rosalie Viney, 2008. "The effect of discounting on quality of life valuation using the Time Trade-Off, CHERE Working Paper 2008/3," Working Papers 2008/3, CHERE, University of Technology, Sydney.
- Marion Haas & Richard Norman & Jeff Walkley & Leah Brennan, 2009. "Issues in evaluating the costs and cost-effectiveness of Cognitive Behavioural Therapy for overweight/obese adolescents, CHERE Working Paper 2009/1," Working Papers 2009/1, CHERE, University of Technology, Sydney.
- Richard Norman & Paula Cronin & Rosalie Viney, 2012. "Deriving utility weights for the EQ-5D-5L using a discrete choice experiment. CHERE Working Paper 2012/01," Working Papers 2012/01, CHERE, University of Technology, Sydney.
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