[The Quality of Life Questionnaire EQ-5D: modelling and norm values for the general population].

The EQ-5D is a short questionnaire for measuring health related quality of life. The aim of the present study is to test psychometric properties of this instrument when applied to the general population. 2022 subjects between 16 and 93 years of age were randomly selected and tested with the EQ-5D. 60 % of the sample reported no health problems in all items, that is, there was a great ceiling effect. The comparison between two models with preference based index measurement and one simple sum score showed that the sum score is at least as appropriate as the two other more sophisticated models. The visual analogue scale of the EQ-5D proved to be practicable and useful for the application in the general population. Norm values for the visual analogue scale and the EQ-5D are presented.