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Extrinsic Goals and Time Tradeoff

Author

Listed:
  • Marjon van der Pol

    (Health Economics Research Unit, University of Aberdeen, Scotland, m.vanderpol@abdn.ac.uk)

  • Alan Shiell

    (Department of Community Health Sciences, University of Calgary, Canada & Centre for Health Economics, Monash University, Melbourne, Australia)

Abstract

Background. The aim of this article is to investigate the extrinsic goals hypothesis in time tradeoff (TTO). The extrinsic goal of interest here is seeing children through to maturity. In TTO, the time it takes to attain this goal becomes a target life expectancy, with no trades happening below the critical value implied by the target, no matter how severe the health state. Methods. A combined quantitative and qualitative approach was used to elicit values for 4 EQ-5D states from 30 recent mothers. The qualitative analysis allowed the researchers to explore with participants whether a target life expectancy was being used. Results. The differences in the visual analogue scale and TTO scores of the mothers compared with the general population suggest that the mothers value life-years differently than the general population does. The finding was also consistent with the target life expectancy hypothesis. However, the interview data were not so strongly supportive of the target life expectancy hypothesis. Although some women suggested this had motivated their responses to the TTO, the interviews paint a more complicated and nuanced picture of what drives a person's responses to health valuation surveys. Conclusions. A higher value was assigned to life-years relative to quality of life by recent parents, but there was no reduction in the willingness to trade per se. Parenthood affects how much one will trade for better health but not whether one will trade in the 1st place. This conclusion became apparent only when the qualitative and quantitative data were combined.

Suggested Citation

  • Marjon van der Pol & Alan Shiell, 2007. "Extrinsic Goals and Time Tradeoff," Medical Decision Making, , vol. 27(4), pages 406-413, July.
    • Handle: RePEc:sae:medema:v:27:y:2007:i:4:p:406-413
    DOI: 10.1177/0272989X07302127
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    References listed on IDEAS

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    1. Joanna Coast, 1999. "The appropriate uses of qualitative methods in health economics," Health Economics, John Wiley & Sons, Ltd., vol. 8(4), pages 345-353, June.
    2. Dolan, Paul, 1996. "Modelling valuations for health states: the effect of duration," Health Policy, Elsevier, vol. 38(3), pages 189-203, December.
    3. Han Bleichrodt, 2002. "A new explanation for the difference between time trade‐off utilities and standard gamble utilities," Health Economics, John Wiley & Sons, Ltd., vol. 11(5), pages 447-456, July.
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    Cited by:

    1. Goodwin, Elizabeth & Davey, Antoinette & Green, Colin & Hawton, Annie, 2021. "What drives differences in preferences for health states between patients and the public? A qualitative investigation of respondents’ thought processes," Social Science & Medicine, Elsevier, vol. 282(C).
    2. David J. Mott & Iain Leslie & Koonal Shah & Jennifer Rowell & Nicolas Scheuer, 2021. "Impact of Including Carer Information in Time Trade-Off Tasks: Results from a Pilot Study," PharmacoEconomics - Open, Springer, vol. 5(4), pages 665-675, December.
    3. Stefan A. Lipman & Vivian T. Reckers-Droog, 2024. "Comparing heuristic valuation processes between health state valuation from child and adult perspectives," The European Journal of Health Economics, Springer;Deutsche Gesellschaft für Gesundheitsökonomie (DGGÖ), vol. 25(8), pages 1345-1360, November.
    4. Karimi, M. & Brazier, J. & Paisley, S., 2017. "How do individuals value health states? A qualitative investigation," Social Science & Medicine, Elsevier, vol. 172(C), pages 80-88.
    5. Floortje Nooten & Jan Busschbach & Michel Agthoven & Job Exel & Werner Brouwer, 2018. "What should we know about the person behind a TTO?," The European Journal of Health Economics, Springer;Deutsche Gesellschaft für Gesundheitsökonomie (DGGÖ), vol. 19(9), pages 1207-1211, December.

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