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Published in: Quality of Life Research 4/2022

Open Access 01-04-2022

Time trade-off with someone to live for: impact of having significant others on time trade-off valuations of hypothetical health states

Authors: Tonya Moen Hansen, Knut Stavem, Kim Rand

Published in: Quality of Life Research | Issue 4/2022

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Abstract

Background

The TTO task involves giving up life years, i.e. living a shorter life, to avoid an undesirable health state. Despite being a hypothetical task, some respondents take other life factors into account when completing the task. This study explored the effect of having children and/or a partner on TTO valuations of hypothetical EQ-5D-5L health states in a valuation study of the general population.

Methods

The study used TTO data collected in a Norwegian EQ-5D-5L valuation study in 2019–2020, by one-to-one pc-assisted interviews following the EQ-VT protocol. We used regression modelling to determine the effect of significant others (having children or a partner) on disutility per health state from the TTO valuations.

Results

430 respondents were included [mean age 43.8 (SD 15.9) years, 58% female, 48% with children, 68% with a partner, 25% with neither children nor partner]. Having children and/or a partner was associated with lowered willingness to trade life years translating to higher elicited health state utilities (p < 0.01).

Conclusion

Having significant others, or the lack of having significant others, was associated with respondents’ valuation of hypothetical health states using TTO, more so than traditional sampling variables such as age and sex. Inadequate representativeness in terms of having significant others could bias health state preference values in valuation studies.
Appendix
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Literature
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go back to reference Hansen, T. M., Helland, Y., Augestad, L. A., Rand, K., Stavem, K., & Garratt, A. (2020). Elicitation of Norwegian EQ-5D-5L values for hypothetical and experience-based health states based on the EuroQol valuation technology (EQ-VT) protocol. British Medical Journal Open, 10(6), e034683. https://doi.org/10.1136/bmjopen-2019-034683CrossRef Hansen, T. M., Helland, Y., Augestad, L. A., Rand, K., Stavem, K., & Garratt, A. (2020). Elicitation of Norwegian EQ-5D-5L values for hypothetical and experience-based health states based on the EuroQol valuation technology (EQ-VT) protocol. British Medical Journal Open, 10(6), e034683. https://​doi.​org/​10.​1136/​bmjopen-2019-034683CrossRef
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go back to reference R Core Team, (2020) R: A Language and Environment for Statistical Computing, in R Foundation for Statistical Computing. R Core Team, (2020) R: A Language and Environment for Statistical Computing, in R Foundation for Statistical Computing.
Metadata
Title
Time trade-off with someone to live for: impact of having significant others on time trade-off valuations of hypothetical health states
Authors
Tonya Moen Hansen
Knut Stavem
Kim Rand
Publication date
01-04-2022
Publisher
Springer International Publishing
Published in
Quality of Life Research / Issue 4/2022
Print ISSN: 0962-9343
Electronic ISSN: 1573-2649
DOI
https://doi.org/10.1007/s11136-021-03026-6

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