A clinical trial to evaluate the measurement properties of 2 direct preference instruments administered with and without hypothetical marker states.

Abstract

BACKGROUND Health economists recommend that when patients provide preference ratings of their own health state using utility and health state preference measures such as the feeling thermometer (FT) and standard gamble (SG), they first rate hypothetical health states (clinical marker states [CMS]). However, there is no evidence to support improvement in… (More)

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