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A multi-method approach to measuring health-state valuations

  • Joshua A. Salomon
  • Christopher J.L. Murray

    (Evidence and Information for Policy, World Health Organization, Geneva, Switzerland)

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    Existing techniques for eliciting health-state valuations incorporate both strength of preferences for health states and other values such as risk aversion or time preference. This paper presents a new methodological approach that allows estimation of a set of core underlying health-state values based on responses elicited through multiple measurement techniques. A study was undertaken in which respondents completed the visual analogue (VAS) scale, time trade-off (TTO), standard gamble (SG) and person trade-off (PTO) for a range of states. By specifying flexible parametric functions to explain responses on each measurement technique, we estimated both the underlying strength of preference values for the health states in the study and the values for a set of auxiliary parameters characterising risk attitudes, discount rates, distributional concerns and scale distortion effects in the group of respondents. This study demonstrates that it is possible to understand responses on these four different measurement techniques based on a consistent set of core values. The approach presented here can provide insights into different sources of observed variation in VAS, TTO, SG and PTO responses and facilitate appropriate adjustment of valuations elicited through different methods for use in summary health measures and economic analyses. Copyright © 2003 John Wiley & Sons, Ltd.

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    File URL: http://hdl.handle.net/10.1002/hec.834
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    Article provided by John Wiley & Sons, Ltd. in its journal Health Economics.

    Volume (Year): 13 (2004)
    Issue (Month): 3 ()
    Pages: 281-290

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    Handle: RePEc:wly:hlthec:v:13:y:2004:i:3:p:281-290
    Contact details of provider: Web page: http://www3.interscience.wiley.com/cgi-bin/jhome/5749

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    1. Krabbe, Paul F. M. & Essink-Bot, Marie-Louise & Bonsel, Gouke J., 1997. "The comparability and reliability of five health-state valuation methods," Social Science & Medicine, Elsevier, vol. 45(11), pages 1641-1652, December.
    2. Richardson, J., 1994. "Cost utility analysis: What should be measured?," Social Science & Medicine, Elsevier, vol. 39(1), pages 7-21, July.
    3. Torrance, George W., 1986. "Measurement of health state utilities for economic appraisal : A review," Journal of Health Economics, Elsevier, vol. 5(1), pages 1-30, March.
    4. Marjon M. Van Der Pol & John A. Cairns, 2000. "Negative and zero time preference for health," Health Economics, John Wiley & Sons, Ltd., vol. 9(2), pages 171-175.
    5. Dolan, Paul & Sutton, Matthew, 1997. "Mapping visual analogue scale health state valuations onto standard gamble and time trade-off values," Social Science & Medicine, Elsevier, vol. 44(10), pages 1519-1530, May.
    6. R.M.P.M. Baltussen & M. Sanon & J. Sommerfeld & R. Würthwein, 2002. "Obtaining disability weights in rural Burkina Faso using a culturally adapted visual analogue scale," Health Economics, John Wiley & Sons, Ltd., vol. 11(2), pages 155-163.
    7. Nord, Erik, 1992. "Methods for quality adjustment of life years," Social Science & Medicine, Elsevier, vol. 34(5), pages 559-569, March.
    8. Dolan, P. & Gudex, C. & Kind, P. & Williams, A., 1996. "Valuing health states: A comparison of methods," Journal of Health Economics, Elsevier, vol. 15(2), pages 209-231, April.
    9. Robinson, Angela & Dolan, Paul & Williams, Alan, 1997. "Valuing health status using VAS and TTO: What lies behind the numbers?," Social Science & Medicine, Elsevier, vol. 45(8), pages 1289-1297, October.
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