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Head-to-head comparison of health-state values derived by a probabilistic choice model and scores on a visual analogue scale

Author

Listed:
  • Paul F. M. Krabbe

    (University of Groningen)

  • Elly A. Stolk

    (EuroQol Research Foundation)

  • Nancy J. Devlin

    (Office of Health Economics)

  • Feng Xie

    (McMaster University)

  • Elise H. Quik

    (University of Groningen)

  • A. Simon Pickard

    (University of Illinois at Chicago)

Abstract

Background Health states were quantified based on discrete choice (DC) modeling and visual analogue scale (VAS) values using the five-level version of the EQ-5D (EQ-5D-5L). The aim of this study was to determine the extent of the relationship between DC derived values (indirect method) and VAS values (direct method). Methods Data were collected in Canada, the United Kingdom, the Netherlands, and the United States. Respondents were asked to perform paired comparisons between two EQ-5D-5L health states for DC. In total, 400 different EQ-5D-5L states were included. After each DC task, respondents were prompted to score the two states one after another on a VAS. Intraclass correlation coefficients were calculated between DC and VAS values and illuminating graphs were designed. Results Approximately 400 respondents participated from each country. High similarity [individual intraclass correlation coefficients (ICC) >0.85] of DC and moderate correspondence of VAS values were observed for the four countries. Cross-country comparison of DC values shows a nonlinear relationship to the VAS values. Conclusion EQ-5D-5L derived DC and VAS values show a close but nonlinear relationship. Given the obvious biases associated with the VAS, DC methods based on ordinal responses may be a better alternative.

Suggested Citation

  • Paul F. M. Krabbe & Elly A. Stolk & Nancy J. Devlin & Feng Xie & Elise H. Quik & A. Simon Pickard, 2017. "Head-to-head comparison of health-state values derived by a probabilistic choice model and scores on a visual analogue scale," The European Journal of Health Economics, Springer;Deutsche Gesellschaft für Gesundheitsökonomie (DGGÖ), vol. 18(8), pages 967-977, November.
    • Handle: RePEc:spr:eujhec:v:18:y:2017:i:8:d:10.1007_s10198-016-0841-y
    DOI: 10.1007/s10198-016-0841-y
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    References listed on IDEAS

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    2. Mina Bahrampour & Joshua Byrnes & Richard Norman & Paul A. Scuffham & Martin Downes, 2020. "Discrete choice experiments to generate utility values for multi-attribute utility instruments: a systematic review of methods," The European Journal of Health Economics, Springer;Deutsche Gesellschaft für Gesundheitsökonomie (DGGÖ), vol. 21(7), pages 983-992, September.

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    More about this item

    Keywords

    EQ-5D; Health states; Valuation methods; Discrete choice model; Visual analogue scale;
    All these keywords.

    JEL classification:

    • I10 - Health, Education, and Welfare - - Health - - - General

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