Journal article
Protocols for time tradeoff valuations of health states worse than dead: a literature review.
C Tilling, N Devlin, A Tsuchiya, K Buckingham
Medical Decision Making an International Journal of the Society for Medical Decision Making | SAGE PUBLICATIONS INC | Published : 2010
Abstract
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. 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. Medline was searched to identify all health state valuation studies..
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Funding Acknowledgements
We would like to thank Dr. Louise Longworth, Professor Anne Stiggelbout, and the 2 anonymous referees for Medical Decision Making for helpful comments on an earlier version of this article. This study was funded by a grant from the EuroQoL group, as part of a wider project piloting a new protocol for states worse than dead. The usual disclaimer applies.