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A Comparison Of Alternative Variants Of The Lead And Lag Time Tto

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Listed:
  • Nancy Devlin
  • Ken Buckingham
  • Koonal Shah
  • Aki Tsuchiya
  • Carl Tilling
  • Grahame Wilkinson
  • Ben van Hout

Abstract

‘Lead Time’ TTO improves upon conventional TTO by providing a uniform method for eliciting positive and negative values. This research investigates (i) the values generated from different combinations of time in poor health and in full health; and the order in which these appear (lead vs. lag); (ii) whether values concur with participants' views about states; (iii) methods for handling extreme preferences. n = 208 participants valued five EQ‐5D states, using two of four variants. Combinations of lead time and health state duration were: 10 years and 20 years; 5 years and 1 year; 5 years and 10 years; and a health state duration of 5 years with a lag time of 10 years. Longer lead times capture more preferences, but may involve a framing effect. Lag time results in less non‐trading for mild states, and less time being traded for severe states. Negative values broadly agree with participants' stated opinion that the state is worse than dead. The values are sensitive to the ratio of lead time to duration of poor health, and the order in which these appear (lead vs. lag). It is feasible to handle extreme preferences though challenges remain. Copyright © 2012 John Wiley & Sons, Ltd.

Suggested Citation

  • Nancy Devlin & Ken Buckingham & Koonal Shah & Aki Tsuchiya & Carl Tilling & Grahame Wilkinson & Ben van Hout, 2013. "A Comparison Of Alternative Variants Of The Lead And Lag Time Tto," Health Economics, John Wiley & Sons, Ltd., vol. 22(5), pages 517-532, May.
    • Handle: RePEc:wly:hlthec:v:22:y:2013:i:5:p:517-532
    DOI: 10.1002/hec.2819
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    References listed on IDEAS

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    1. 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.
    2. Angela Robinson & Anne Spencer, 2006. "Exploring challenges to TTO utilities: valuing states worse than dead," Health Economics, John Wiley & Sons, Ltd., vol. 15(4), pages 393-402, April.
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