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Protocols for Time Tradeoff Valuations of Health States Worse than Dead: A Literature Review

Author

Listed:
  • Carl Tilling

    (School of Health and Related Research, University of Sheffield, United Kingdom, c.tilling@sheffield.ac.uk)

  • Nancy Devlin

    (Office of Health Economics, London, United Kingdom)

  • Aki Tsuchiya

    (Department of Economics and the School of Health and Related Research, University of Sheffield, United Kingdom)

  • Ken Buckingham

    (Department of Preventive and Social Medicine, University of Otago, New Zealand)

Abstract

Background. The time tradeoff (TTO) method of preference elicitation allows respondents to value a state as worse than dead, generally either through the Torrance protocol or the Measurement and Valuation of Health (MVH) protocol. Both of these protocols have significant weaknesses: Valuations for states worse than dead (SWD) are elicited through procedures different from those for states better than dead (SBD), and negative values can be extremely negative. Purpose. To provide an account of the different TTO designs for SWD, to identify any alternatives to the MVH and Torrance approaches, and to consider the merits of the approaches identified. Methods. Medline was searched to identify all health state valuation studies employing TTO. The ways in which SWD were handled were recorded. Furthermore, to ensure that there are no unpublished but feasible TTO variants, the authors developed a theoretical framework for identifying all potential variants. Results. The search produced 593 hits, of which 218 were excluded. Of the remaining 375 articles, only 29 included protocols for SWD. Of these, 23 used the MVH protocol and 4 used the Torrance protocol. The other 2 used 1 protocol for SBD and SWD, one making use of lead time and the other using a 2-stage procedure with chaining. The systematic framework did not identify any alternatives to the Torrance and MVH protocols that were superior to the lead time approach. Conclusions. Few studies elicit values for SWD. The lead time approach is a potential alternative to the Torrance and MVH protocols. Key words: QALY; states worse than dead; health state valuation; preference elicitation.

Suggested Citation

  • Carl Tilling & Nancy Devlin & Aki Tsuchiya & Ken Buckingham, 2010. "Protocols for Time Tradeoff Valuations of Health States Worse than Dead: A Literature Review," Medical Decision Making, , vol. 30(5), pages 610-619, September.
    • Handle: RePEc:sae:medema:v:30:y:2010:i:5:p:610-619
    DOI: 10.1177/0272989X09357475
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    References listed on IDEAS

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    1. Drummond, Michael F. & Sculpher, Mark J. & Torrance, George W. & O'Brien, Bernie J. & Stoddart, Greg L., 2005. "Methods for the Economic Evaluation of Health Care Programmes," OUP Catalogue, Oxford University Press, edition 3, number 9780198529453.
    2. Claire Gudex, 1994. "Time trade-off user manual: props and self-completion methods," Working Papers 020cheop, Centre for Health Economics, University of York.
    3. 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.
    4. Jeff Richardson & Neil Atherton Day & Stuart Peacock & Angelo Iezzi, 2004. "Measurement of the Quality of Life for Economic Evaluation and the Assessment of Quality of Life (AQoL) Mark 2 Instrument," Australian Economic Review, The University of Melbourne, Melbourne Institute of Applied Economic and Social Research, vol. 37(1), pages 62-88, March.
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    1. Liv Ariane Augestad & Kim Rand-Hendriksen & Ivar Sønbø Kristiansen & Knut Stavem, 2012. "Impact of Transformation of Negative Values and Regression Models on Differences Between the UK and US EQ-5D Time Trade-Off Value Sets," PharmacoEconomics, Springer, vol. 30(12), pages 1203-1214, December.
    2. Nancy J. Devlin & Aki Tsuchiya & Ken Buckingham & Carl Tilling, 2011. "A uniform time trade off method for states better and worse than dead: feasibility study of the ‘lead time’ approach," Health Economics, John Wiley & Sons, Ltd., vol. 20(3), pages 348-361, March.
    3. Versteegh, MM & Attema, AE & Oppe, M & Devlin, NJ & Stolk, EA, 2012. "Time to tweak the TTO. But how?," MPRA Paper 37989, University Library of Munich, Germany.
    4. Stefan A. Lipman & Arthur E. Attema & Matthijs M. Versteegh, 2022. "Correcting for discounting and loss aversion in composite time trade‐off," Health Economics, John Wiley & Sons, Ltd., vol. 31(8), pages 1633-1648, August.
    5. Bas Janssen & Mark Oppe & Matthijs Versteegh & Elly Stolk, 2013. "Introducing the composite time trade-off: a test of feasibility and face validity," The European Journal of Health Economics, Springer;Deutsche Gesellschaft für Gesundheitsökonomie (DGGÖ), vol. 14(1), pages 5-13, July.
    6. Federico Augustovski & Lucila Rey-Ares & Vilma Irazola & Mark Oppe & Nancy Devlin, 2013. "Lead versus lag-time trade-off variants: does it make any difference?," The European Journal of Health Economics, Springer;Deutsche Gesellschaft für Gesundheitsökonomie (DGGÖ), vol. 14(1), pages 25-31, July.
    7. Jose Luis Pinto Prades & Eva Rodriguez Miguez, 2011. "The Lead Time Trade-Off: The Case Of Health States Better Than Death," Working Papers 11.10, Universidad Pablo de Olavide, Department of Economics.
    8. 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.
    9. Arthur E. Attema & Matthijs M. Versteegh & Mark Oppe & Werner B. F. Brouwer & Elly A. Stolk, 2013. "Lead Time Tto: Leading To Better Health State Valuations?," Health Economics, John Wiley & Sons, Ltd., vol. 22(4), pages 376-392, April.
    10. Nan Luo & Minghui Li & Elly Stolk & Nancy Devlin, 2013. "The effects of lead time and visual aids in TTO valuation: a study of the EQ-VT framework," The European Journal of Health Economics, Springer;Deutsche Gesellschaft für Gesundheitsökonomie (DGGÖ), vol. 14(1), pages 15-24, July.
    11. Nicolas A. Menzies & Joshua A. Salomon, 2011. "Non‐monotonicity in the episodic random utility model," Health Economics, John Wiley & Sons, Ltd., vol. 20(12), pages 1523-1531, December.
    12. Liv Augestad & Kim Rand-Hendriksen & Ivar Kristiansen & Knut Stavem, 2012. "Impact of Transformation of Negative Values and Regression Models on Differences Between the UK and US EQ-5D Time Trade-Off Value Sets," PharmacoEconomics, Springer, vol. 30(12), pages 1203-1214, December.
    13. Matthijs Versteegh & Arthur Attema & Mark Oppe & Nancy Devlin & Elly Stolk, 2013. "Time to tweak the TTO: results from a comparison of alternative specifications of the TTO," The European Journal of Health Economics, Springer;Deutsche Gesellschaft für Gesundheitsökonomie (DGGÖ), vol. 14(1), pages 43-51, July.
    14. Rosalie Viney & Richard Norman & John Brazier & Paula Cronin & Madeleine T. King & Julie Ratcliffe & Deborah Street, 2014. "An Australian Discrete Choice Experiment To Value Eq‐5d Health States," Health Economics, John Wiley & Sons, Ltd., vol. 23(6), pages 729-742, June.

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