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Estimating an EQ-5D population value set: the case of Japan

Author

Listed:
  • Aki Tsuchiya

    (School of Health and Related Research, University of Sheffield, UK)

  • Shunya Ikeda

    (Department of Health Policy and Management, Keio University School of Medicine, Tokyo, Japan)

  • Naoki Ikegami

    (Department of Health Policy and Management, Keio University School of Medicine, Tokyo, Japan)

  • Shuzo Nishimura

    (Graduate School of Economics, Kyoto University, Japan)

  • Ikuro Sakai

    (Faculty of Medicine, The University of Tokyo, Japan)

  • Takashi Fukuda

    (Department of Pharmacoeconomics, Graduate School of Pharmaceutical Sciences, The University of Tokyo, Japan)

  • Chisato Hamashima

    (Department of Preventive Medicine, St. Mariannna University School of Medicine, Kawasaki, Japan)

  • Akinori Hisashige

    (Department of Preventive Medicine, School of Medicine, University of Tokushima, Japan)

  • Makoto Tamura

    (International University of Health and Welfare, Otawara, Japan)

Abstract

Quality adjustment weights for quality-adjusted life years (QALYs) are available with the EQ-5D Instrument, which are based on a survey that quantified the preferences of the British public. However, the extent to which this British value set is applicable to other, especially non-European, countries is yet unclear. The objectives of this study are (a) to compare the valuations obtained in Japan and Britain, and (b) to explore a local Japanese value set. A diminished study design is employed, where 17 hypothetical EQ-5D health states are evaluated as opposed to 42 in the British study. The official Japanese version of the instrument and the Time Trade-Off method are used to interview 543 members of the public. The results are: firstly, the evaluations obtained in Japan and those from Britain differ by 0.24 on average on a [−1, +1] scale, and mean absolute error (MAE) in predicting the Japanese preferences with the British value set is 0.23. Secondly, comparable regressions suggest that the two peoples have systematically different preference structures (p<0.001 for 8 of 12 coefficients; F-test). Thirdly, using alternative models, the predictions are improved so that the local Japanese value set achieves MAE in the order of 0.01. Copyright © 2002 John Wiley & Sons, Ltd.

Suggested Citation

  • Aki Tsuchiya & Shunya Ikeda & Naoki Ikegami & Shuzo Nishimura & Ikuro Sakai & Takashi Fukuda & Chisato Hamashima & Akinori Hisashige & Makoto Tamura, 2002. "Estimating an EQ-5D population value set: the case of Japan," Health Economics, John Wiley & Sons, Ltd., vol. 11(4), pages 341-353.
  • Handle: RePEc:wly:hlthec:v:11:y:2002:i:4:p:341-353
    DOI: 10.1002/hec.673
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    References listed on IDEAS

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    1. Claire Gudex, 1994. "Time trade-off user manual: props and self-completion methods," Working Papers 020cheop, Centre for Health Economics, University of York.
    2. Paul Dolan & Claire Gudex & Paul Kind & Alan Williams, 1995. "A social tariff for EuroQol: results from a UK general population survey," Working Papers 138chedp, Centre for Health Economics, University of York.
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    Cited by:

    1. Benjamin M. Craig, 2016. "Unchained melody: revisiting the estimation of SF-6D values," The European Journal of Health Economics, Springer;Deutsche Gesellschaft für Gesundheitsökonomie (DGGÖ), vol. 17(7), pages 865-873, September.
    2. Bansback, Nick & Brazier, John & Tsuchiya, Aki & Anis, Aslam, 2012. "Using a discrete choice experiment to estimate health state utility values," Journal of Health Economics, Elsevier, vol. 31(1), pages 306-318.
    3. Brazier, J, 2005. "Current state of the art in preference-based measures of health and avenues for further research," MPRA Paper 29762, University Library of Munich, Germany.
    4. Rodríguez-Míguez, E. & Abellán-Perpiñán, J.M. & Alvarez, X.C. & González, X.M. & Sampayo, A.R., 2016. "The DEP-6D, a new preference-based measure to assess health states of dependency," Social Science & Medicine, Elsevier, vol. 153(C), pages 210-219.
    5. Feng Xie & A. Pickard & Paul Krabbe & Dennis Revicki & Rosalie Viney & Nancy Devlin & David Feeny, 2015. "A Checklist for Reporting Valuation Studies of Multi-Attribute Utility-Based Instruments (CREATE)," PharmacoEconomics, Springer, vol. 33(8), pages 867-877, August.
    6. Imai, Hirohisa & Fujii, Yoshinori & Fukuda, Yoshiharu & Nakao, Hiroyuki & Yahata, Yuichiro, 2008. "Health-related quality of life and beneficiaries of long-term care insurance in Japan," Health Policy, Elsevier, vol. 85(3), pages 349-355, March.
    7. L. M. Lamers & J. McDonnell & P. F. M. Stalmeier & P. F. M. Krabbe & J. J. V. Busschbach, 2006. "The Dutch tariff: results and arguments for an effective design for national EQ-5D valuation studies," Health Economics, John Wiley & Sons, Ltd., vol. 15(10), pages 1121-1132.
    8. Garry R. Barton & Tracey H. Sach & Anthony J. Avery & Claire Jenkinson & Michael Doherty & David K. Whynes & Kenneth R. Muir, 2008. "A comparison of the performance of the EQ-5D and SF-6D for individuals aged > 45 years," Health Economics, John Wiley & Sons, Ltd., vol. 17(7), pages 815-832.
    9. Eleanor Pullenayegum & Kuhan Perampaladas & Kathryn Gaebel & Brett Doble & Feng Xie, 2015. "Between-country heterogeneity in EQ-5D-3L scoring algorithms: how much is due to differences in health state selection?," The European Journal of Health Economics, Springer;Deutsche Gesellschaft für Gesundheitsökonomie (DGGÖ), vol. 16(8), pages 847-855, November.
    10. Samer Kharroubi, 2015. "A Comparison of Japan and UK SF-6D Health-State Valuations Using a Non-Parametric Bayesian Method," Applied Health Economics and Health Policy, Springer, vol. 13(4), pages 409-420, August.
    11. Méndez, Ildefonso & Abellán Perpiñán, Jose M. & Sánchez Martínez, Fernando I. & Martínez Pérez, Jorge E., 2011. "Inverse probability weighted estimation of social tariffs: An illustration using the SF-6D value sets," Journal of Health Economics, Elsevier, vol. 30(6), pages 1280-1292.
    12. Nan Luo & Pei Wang & Julian Thumboo & Yee-Wei Lim & Hubertus Vrijhoef, 2014. "Valuation of EQ-5D-3L Health States in Singapore: Modeling of Time Trade-Off Values for 80 Empirically Observed Health States," PharmacoEconomics, Springer, vol. 32(5), pages 495-507, May.
    13. Michał Jakubczyk, 2009. "Impact of Complementarity and Heterogeneity on Health Related Utility of Life," Central European Journal of Economic Modelling and Econometrics, CEJEME, vol. 1(2), pages 139-156, November.
    14. John Brazier & Jennifer Roberts & Aki Tsuchiya & Jan Busschbach, 2004. "A comparison of the EQ-5D and SF-6D across seven patient groups," Health Economics, John Wiley & Sons, Ltd., vol. 13(9), pages 873-884.
    15. P. Wang & M. Li & G. Liu & J. Thumboo & N. Luo, 2015. "Do Chinese have similar health-state preferences? A comparison of mainland Chinese and Singaporean Chinese," The European Journal of Health Economics, Springer;Deutsche Gesellschaft für Gesundheitsökonomie (DGGÖ), vol. 16(8), pages 857-863, November.
    16. Jose María Abellán Perpiñán & Fernando Ignacio Sánchez Martínez & Jorge Eduardo Martínez Pérez & Ildefonso Méndez Martínez, 2009. "Debiasing EQ-5D Tariffs. New estimations of the spanish EQ-5D value set under nonexpected utility," Economic Working Papers at Centro de Estudios Andaluces E2009/06, Centro de Estudios Andaluces.
    17. repec:spr:pharme:v:36:y:2018:i:2:d:10.1007_s40273-017-0580-7 is not listed on IDEAS
    18. Irina Cleemput, 2010. "A social preference valuations set for EQ-5D health states in Flanders, Belgium," The European Journal of Health Economics, Springer;Deutsche Gesellschaft für Gesundheitsökonomie (DGGÖ), vol. 11(2), pages 205-213, April.
    19. Julie Chevalier & Gérard Pouvourville, 2013. "Valuing EQ-5D using Time Trade-Off in France," The European Journal of Health Economics, Springer;Deutsche Gesellschaft für Gesundheitsökonomie (DGGÖ), vol. 14(1), pages 57-66, February.
    20. 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.
    21. W. Greiner & C. Claes & J. J. V. Busschbach & J.-M. Schulenburg, 2005. "Validating the EQ-5D with time trade off for the German population," The European Journal of Health Economics, Springer;Deutsche Gesellschaft für Gesundheitsökonomie (DGGÖ), vol. 6(2), pages 124-130, June.

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