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Exploring challenges to TTO utilities: valuing states worse than dead

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Author Info
Angela Robinson (School of Medicine, Health Policy and Practice University of East Anglia, Norwich, UK)
Anne Spencer (Department of Economics, Queen Mary College, London, UK)
Abstract

The conventional time trade off (TTO) method relies on fundamentally different procedures to assess states better than and worse than dead. Arbitrary transformation mechanisms are then applied to worse than dead scores in order to achieve symmetry with those rated as better than dead. We use a 'life profile' approach along with a ranking procedure in order to show how states rated worse than dead may be assessed in exactly the same manner as better than dead scores. We then explore a common issue associated with states worse than dead that has received some attention recently: maximal endurable time. Our results showed that, although the severe health state was commonly rated as worse than dead, there were relatively few respondents that exhibited MET preferences. We discuss the implications of our findings for the use of the TTO method in deriving values for states that are worse than dead. Copyright © 2005 John Wiley & Sons, Ltd.

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File URL: http://hdl.handle.net/10.1002/hec.1069
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Publisher Info
Article provided by John Wiley & Sons, Ltd. in its journal Health Economics.

Volume (Year): 15 (2006)
Issue (Month): 4 ()
Pages: 393-402
Download reference. The following formats are available: HTML (with abstract), plain text (with abstract), BibTeX, RIS (EndNote, RefMan, ProCite), ReDIF
Handle: RePEc:wly:hlthec:v:15:y:2006:i:4:p:393-402

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Web page: http://www3.interscience.wiley.com/cgi-bin/jhome/5749

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Please report citation or reference errors to , or , if you are the registered author of the cited work, log in to your RePEc Author Service profile, click on "citations" and make appropriate adjustments.:
  1. 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. [Downloadable!] (restricted)
  2. Loewenstein, George & Prelec, Drazen, 1992. "Anomalies in Intertemporal Choice: Evidence and an Interpretation," The Quarterly Journal of Economics, MIT Press, vol. 107(2), pages 573-97, May. [Downloadable!] (restricted)
  3. Dolan, Paul & Stalmeier, Peep, 2003. "The validity of time trade-off values in calculating QALYs: constant proportional time trade-off versus the proportional heuristic," Journal of Health Economics, Elsevier, vol. 22(3), pages 445-458, May. [Downloadable!] (restricted)
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Cited by:
(explanations, Please report citation or reference errors to , or , if you are the registered author of the cited work, log in to your RePEc Author Service profile, click on "citations" and make appropriate adjustments.)

  1. Peter P. Wakker, 2008. "Explaining the characteristics of the power (CRRA) utility family," Health Economics, John Wiley & Sons, Ltd., vol. 17(12), pages 1329-1344. [Downloadable!]
  2. Ken Buckingham & Nancy Devlin, 2008. "A note on the nature of utility in time and health and implications for cost utility analysis," City University Economics Discussion Papers 08/02, Department of Economics, City University, London. [Downloadable!]
  3. Nancy Devlin & Aki Tsuchiya & Ken Buckingham & Carl Tilling, 2009. "A uniform Time Trade Off method for states better and worse than dead: feasibility study of the ‘lead time’ approach," City University Economics Discussion Papers 09/08, Department of Economics, City University, London. [Downloadable!]
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This page was last updated on 2009-12-13.

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