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The healthy years equivalent (HYE) provides a user-friendly metric that is needed for improved communication within and among researchers, decision makers, practitioners, and consumers. Unlike the quality-adjusted life year (QALY), which means different things to different people and often is not consistent with the underlying principles of cost-utility analysis (CUA), the HYE means only one thing—it is a utility-based concept, derived from the individual's utility function by measuring the number of years in full health, holding other arguments in the utility function constant, that produces the same level of utility to the individual as produced by the potential lifetime health profile following a given intervention. The measurement of HYE requires that individuals will be allowed to reveal their true preferences. This is because it seems ...

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