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Valuing SF-6Dv2 in Australia Using an International Protocol
Brendan Mulhern1, Richard Norman2, John Brazier3
1Centre for Health Economics Research and Evaluation, University of Technology Sydney, Sydney, NSW, Australia. Brendan.mulhern@chere.uts.edu.au.
Pharmacoeconomics
|July 12, 2021
Summary
This study developed an Australian SF-6Dv2 value set using international methods. The new value set improves health technology assessment decisions in Australia.
Area of Science:
- Health Economics
- Psychometrics
- Outcome Measurement
Background:
- The SF-6Dv2 is an updated health state valuation system requiring new value sets.
- Previous versions lacked consistency and clear dimension descriptors.
Purpose of the Study:
- To estimate an SF-6Dv2 value set for Australia using an international protocol.
- To compare Australian and UK value sets and assess heterogeneity.
Main Methods:
- Employed the SF-6Dv2 valuation protocol with discrete choice experiments (DCE).
- Administered two DCE tasks (Design 1: health state pairs; Design 2: health state pairs with immediate death).
- Estimated value sets using logit models and compared characteristics with the UK model.
Main Results:
- 3001 Australians participated.
- Models incorporating Design 1 data showed a wider utility range.
- An interaction term for severe health state dimensions reduced the value range.
- The chosen model aligned with the UK value set, yielding a larger utility range.
Conclusions:
- The selected model, using Design 1 data and a moderating interaction, provides the Australian SF-6Dv2 value set.
- This enables the use of SF-6Dv2 for health technology assessment in Australia.
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