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A new method for valuing health: directly eliciting personal utility functions
Nancy J Devlin1,2, Koonal K Shah3,4, Brendan J Mulhern5
1Office of Health Economics, Southside 7th floor, 105 Victoria Street, London, SW1E 6QT, UK.
Summary
A new method for eliciting personal utility functions (PUFs) directly assesses health preferences, proving feasible for EQ-5D valuation. Pain/discomfort and mobility were key concerns, with varied respondent views on health state severity.
Area of Science:
- Health Economics
- Patient-Reported Outcomes
- Preference Elicitation
Background:
- Standard methods infer preferences indirectly by evaluating health states.
- An alternative is directly asking about the importance of health dimensions and levels.
- This study introduces a novel stated preference approach for direct personal utility function (PUF) elicitation.
Purpose of the Study:
- To describe a new method for directly eliciting personal utility functions (PUFs).
- To test the feasibility of this approach for valuing the EQ-5D instrument.
- To explore direct elicitation of health state preferences.
Main Methods:
- A questionnaire was developed for computer-assisted personal interviews.
- The focus was on enabling respondents to deliberate on their preferences.
- The questionnaire was piloted with general public respondents in England.
Main Results:
- Seventy-six interviews were conducted.
- Pain/discomfort and mobility emerged as the most significant EQ-5D dimensions.
- Significant heterogeneity was observed in how respondents rated intermediate health improvements and the severity of health states.
Conclusions:
- The personal utility function (PUF) approach is feasible for generating valuable preference data for EQ-5D valuation.
- Direct elicitation offers a complementary method to existing health state valuation techniques.
- Further refinement of the PUF elicitation approach is recommended.
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