Skip to main page content
U.S. flag

An official website of the United States government

Dot gov

The .gov means it’s official.
Federal government websites often end in .gov or .mil. Before sharing sensitive information, make sure you’re on a federal government site.

Https

The site is secure.
The https:// ensures that you are connecting to the official website and that any information you provide is encrypted and transmitted securely.

Access keys NCBI Homepage MyNCBI Homepage Main Content Main Navigation
. 2019 Jun;20(4):559-568.
doi: 10.1007/s10198-018-1017-8. Epub 2018 Dec 31.

Do time trade-off values fully capture attitudes that are relevant to health-related choices?

Anne Spencer  1 , Ewan Tomeny  2 , Ruben E Mujica-Mota  3 , Angela Robinson  4 , Judith Covey  5 , Jose Luis Pinto-Prades  6
Affiliations

Do time trade-off values fully capture attitudes that are relevant to health-related choices?

Anne Spencer et al. Eur J Health Econ. 2019 Jun.

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.

Keywords: Attitudes; Preference elicitation; TTO; Time trade-off method; Utility.

PubMed Disclaimer

Conflict of interest statement

The authors declare that they have no conflict of interest.

Figures

Fig. 1
Fig. 1
TTO question using 21211 as an example
Fig. 2
Fig. 2
Choice question using 21211 and 12212 as an example
Fig. 3
Fig. 3
Attitudinal statements presented to respondents
Fig. 4
Fig. 4
Responses to the attitudinal questions
See this image and copyright information in PMC

Similar articles

See all similar articles

Cited by

References

    1. Attema AE, Edelaar-Peeters Y, Versteegh MM, Stolk EA. Time trade-off: one methodology, different methods. Eur. J. Health Econ. 2013;14:S53–S64. doi: 10.1007/s10198-013-0508-x. - DOI - PMC - PubMed
    1. Tilling C, Krol M, Attema AE, Tsuchiya A, Brazier J, van Exel J, Brouwer W. Exploring a new method for deriving the monetary value of a QALY. Eur. J. Health Econ. 2016;17(7):801–809. doi: 10.1007/s10198-015-0722-9. - DOI - PubMed
    1. Shaw JW, Johnson JA, Coons SJ. US valuation of the EQ-5D health states—development and testing of the D1 valuation model. Med. Care. 2005;43(3):203–220. doi: 10.1097/00005650-200503000-00003. - DOI - PubMed
    1. Dolan P, Roberts J. To what extent can we explain time trade-off values from other information about respondents? Soc. Sci. Med. 2002;54(6):919–929. doi: 10.1016/S0277-9536(01)00066-1. - DOI - PubMed
    1. Chevalier J, de Pouvourville G. Valuing EQ-5D using time trade-off in France. Eur. J. Health Econ. 2013;14(1):57–66. doi: 10.1007/s10198-011-0351-x. - DOI - PubMed