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A test of the QALY model when health varies over time

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  • Spencer, Anne
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    Abstract

    Quality-adjusted life years (QALYs) estimate the utility derived from health profiles by taking account of life expectancy and quality of life. In applying QALYs to situations where health varies over time, it is usual to assume that we can add the utilities from constituent health states. This paper investigates the QALY approach to combining health states over time using two tests. The first test rejects additive independence, the central assumption of the QALY model, for individual respondents. The second test is equivocal. The tests are, therefore, unable to conclusively reject the QALY approach to combining health states over time.

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    Bibliographic Info

    Article provided by Elsevier in its journal Social Science & Medicine.

    Volume (Year): 57 (2003)
    Issue (Month): 9 (November)
    Pages: 1697-1706

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    Handle: RePEc:eee:socmed:v:57:y:2003:i:9:p:1697-1706

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    Related research

    Keywords: Utility measurement Additive independence Health profiles QALY model;

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    Cited by:
    1. McNamee, Paul, 2007. "What difference does it make? The calculation of QALY gains from health profiles using patient and general population values," Health Policy, Elsevier, vol. 84(2-3), pages 321-331, December.
    2. Jens Leth Hougaard & Juan D. Moreno-Ternero & Lars Peter Østerdal, 2011. "A new axiomatic approach to the evaluation of population health," Discussion Papers 11-24, University of Copenhagen. Department of Economics.
    3. Bleichrodt, Han & Filko, Martin, 2008. "New tests of QALYs when health varies over time," Journal of Health Economics, Elsevier, vol. 27(5), pages 1237-1249, September.
    4. Benjamin M. Craig, 2009. "The duration effect: a link between TTO and VAS values," Health Economics, John Wiley & Sons, Ltd., vol. 18(2), pages 217-225.

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