ABSTRACT – The aim of this paper is to evaluate the effect of different EQ-5D health dimensions on individual health states valuation in Minas Gerais, Brazil. This analysis is an important benchmark for the decision-makers in performing Health Technology Assessment. Health technologies usually improve health but it can have side effects that result in undesirable health states for the society. EQ-5D instrument defines health in terms of five dimensions (mobility, usual activities, self-care activities, pain/discomfort, and anxiety/depression) each divided into three levels of severity.  Data came from a valuation study with 3,362 literate individuals aged between 18 and 64 living in urban areas of Minas Gerais. TTO data were modeled using Random Effects (RE) methods. The main results reveal that the decrement in health utility increase with severity level. Regarding health dimension, mobility stands out as the most important EQ-5D dimension. Independently of severity levels of the other EQ-5D dimensions, the highest decrements in utilities are associated to severe mobility problem.

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