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Multi-attribute preference functions. Health Utilities Index
G W Torrance1, W Furlong, D Feeny
1Department of Clinical Epidemiology and Biostatistics, McMaster University, Hamilton, Ontario, Canada.
Pharmacoeconomics
|May 8, 1995
Summary
Multi-attribute utility theory models health preferences using systems like the Health Utilities Index (HUI). This approach provides utility scores for health outcomes, valuable in clinical and general population health assessments.
Area of Science:
- Health Economics
- Decision Analysis
- Psychometrics
Background:
- Conventional utility theory has limitations in modeling complex health states.
- Multi-attribute health status classification systems require advanced utility modeling.
- Preference independence among attributes dictates the choice of utility function.
Purpose of the Study:
- To apply multi-attribute utility theory to health status classification systems.
- To model preference scores for multi-attribute health states.
- To evaluate the utility of the Health Utilities Index (HUI) systems.
Main Methods:
- Utilizing multi-attribute utility theory to define preference functions (additive, multiplicative, multilinear).
- Applying the theory to the Health Utilities Index (HUI) Mark II and Mark III systems.
- Differentiating between value and utility scores based on measurement instruments.
Main Results:
- Demonstrated application of multi-attribute utility theory to HUI Mark II system.
- Presented ongoing research for the HUI Mark III system.
- Discussed the theory's relevance to other multi-attribute health systems.
Conclusions:
- The HUI system offers an efficient method for obtaining public-based utility scores.
- HUI scores serve as a summary measure of health-related quality of life in clinical settings.
- HUI scores are applicable in cost-utility analyses and population health expectancy calculations.
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