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Quality of Life Research
Published in: Quality of Life Research 1/2020

Open Access 01-01-2020

Influence of elicitation procedure and phrasing on health state valuations in experience-based time trade-off tasks among diabetes patients in China

Authors: Shuang Hao, Emelie Heintz, Gert Helgesson, Sophie Langenskiöld, Jiaying Chen, Kristina Burström

Published in: Quality of Life Research | Issue 1/2020

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Abstract

Purpose

Open-ended and iteration-based time trade-off (TTO) tasks can both be used for valuation of health states. It has so far not been examined how the elicitation procedure affects the valuation of experience-based health states. The purpose of this study is to investigate the influence of elicitation procedure on experience-based health state values elicited by the TTO method.

Methods

156 Chinese adults with type 2 diabetes participated in face-to-face interviews with an open-ended or an iteration-based TTO task. The association between the type of TTO task and the valuation of health states was investigated through multiple linear regression analyses. A modified open-ended TTO task was also developed (n = 33) to test whether different phrasings of open-ended TTO tasks influence TTO values.

Results

Higher TTO values were observed in the original open-ended TTO task compared to the iteration-based task, which indicates that the elicitation procedure influences the valuation of health states. When the modified open-ended task was introduced, the difference between the two elicitation procedures was no longer statistically significant, suggesting that the phrasing and/or visual presentation of the TTO task may influence the valuation of health states.

Conclusions

The choice of elicitation procedure as well as the description of experience-based TTO tasks may influence the valuation of health states. Further research is warranted, also in other cultural contexts, to further explore these findings.
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Metadata
Title
Influence of elicitation procedure and phrasing on health state valuations in experience-based time trade-off tasks among diabetes patients in China
Authors
Shuang Hao
Emelie Heintz
Gert Helgesson
Sophie Langenskiöld
Jiaying Chen
Kristina Burström
Publication date
01-01-2020
Publisher
Springer International Publishing
Published in
Quality of Life Research / Issue 1/2020
Print ISSN: 0962-9343
Electronic ISSN: 1573-2649
DOI
https://doi.org/10.1007/s11136-019-02292-9

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