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Several preference-weighted indexes measuring
self-reported generic HRQoL are used widely in population surveys and
clinical studies in the U.S. and around the world. These indexes are
used to evaluate individual and population health. Because they have
been developed using econometric methods to elicit utility weights for
their scoring systems they are generally accepted for use in
cost-effectiveness analyses of health interventions. Each index uses a
multidimensional representation of health, but each index covers the
dimensions of health (e.g., physical function, mental function, social
function, pain, other symptoms, etc.) differently and they use
questionnaires with different psychometric properties. Each index is
scored so that perfect health is represented as 1.0 and dead is
represented as 0.0, but they are known to have different scaling
properties.
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