What question did this study set out to answer?

To evaluate and apply mathematical corrections for systematic biases, including loss aversion, probability weighting, and utility curvature, in standard gamble and time tradeoff utility measurements.

September 3, 2004Medical Decision Making

Correcting Biases in Standard Gamble and Time Tradeoff Utilities

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Authors

SOSylvie M. C. van OschLeiden University Medical Center PWPeter P. WakkerTinbergen Institute WHWilbert B. van den HoutLeiden University Medical Center

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Implication

Observational study reveals upward bias in standard health utility measurements across rheumatoid arthritis states, indicating uncorrected scores significantly overestimate true health values.

Key Points

To evaluate and apply mathematical corrections for systematic biases, including loss aversion, probability weighting, and utility curvature, in standard gamble and time tradeoff utility measurements.
Assessed standard gamble (SG) and time tradeoff (TTO) utilities for 6 rheumatoid arthritis health states in N=45 healthy respondents.
Evaluated theoretical bias corrections addressing loss aversion, scale compatibility, probability weighting, and utility curvature for life duration.
Uncorrected TTO scores and TTO scores corrected for utility curvature showed similar results.
Downward biases in TTO were small and unable to offset upward distortions, resulting in overall upwardly biased TTO values.
TTO scores remained higher than the theoretically preferred mixed-corrected SG scores, indicating that uncorrected SG utilities substantially overestimate health state values.

Cite This Study

Osch et al. (2004) studied this question.

synapsesocial.com/papers/6a1107186da19daf831689e6 https://doi.org/10.1177/0272989x04268955

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Implication

Observational study reveals upward bias in standard health utility measurements across rheumatoid arthritis states, indicating uncorrected scores significantly overestimate true health values.

Correcting Biases in Standard Gamble and Time Tradeoff Utilities

Discussion

Member takes

Implication

Key Points

Cite This Study

Correcting Biases in Standard Gamble and Time Tradeoff Utilities

Discussion

Member takes

Implication

Key Points

Cite This Study

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