Do Time Trade-off values fully capture attitudes that are relevant to health related choices?

Spencer, A; Tomeny, E; Robinson, A; Covey, J; Pinto Prades, JL

Abstract

Previous research has shown that demographics, beliefs and self-reported own health influence TTO values. Our hypothesis is that attitudes towards length and quality of life influence TTO values, but should no longer affect a set of related choices that are based on respondents’ own TTO scores. A representative sample of 1339 respondents was asked their level of agreement to four statements relating to the importance of quality and length of life. Respondents then went on to value 4 EQ-5D 5L states using an online interactive survey and a related set of 6 pairwise health related choice questions, set up so that respondents should be indifferent between choice options. We explored the impact of attitudes using regression analysis for TTO values and a logit model for choices. TTO values were correlated with the attitudes and were found to have a residual impact on the choices. In particular, those respondents who preferred quality of life over length of life gave less weight to the differences in years and more weight to differences in quality of life in these choice. We conclude that although the TTO responses reflect attitudes, these attitudes continue to affect health related choices.

Citation

Spencer, A., Tomeny, E., Robinson, A., Covey, J., & Pinto Prades, J. (2019). Do Time Trade-off values fully capture attitudes that are relevant to health related choices?. European Journal of Health Economics, 20(4), 559-568. https://doi.org/10.1007/s10198-018-1017-8

• Journal Article Type: Article
• Acceptance Date: Nov 29, 2018
• Online Publication Date: Dec 31, 2018
• Publication Date: 2019
• Deposit Date: Nov 30, 2018
• Publicly Available Date: Feb 1, 2019
• Journal: European Journal of Health Economics
• Print ISSN: 1618-7598
• Electronic ISSN: 1618-7601
• Publisher: Springer
• Peer Reviewed: Peer Reviewed
• Volume: 20
• Issue: 4
• Pages: 559-568
• DOI: https://doi.org/10.1007/s10198-018-1017-8
• Public URL: https://durham-repository.worktribe.com/output/1312435