This international research of the COST Action B6 was designed as a multicentre European naturalistic longitudinal outcome study of eating disorders. It involved the development of standard instruments for measuring eating disorder symptomatology at first assessment (at the beginning and the end of the treatment) and over time (1 year and 2.5 years) and the measurement of the components of clinical management used and the outcome of the illness. The main aim was to improve the empirical base for the development of therapeutic programmes which will have the greatest impact on the most important therapeutic aims at a minimum cost. In this report we are comparing the therapeutic efficacy of specialized centres in the Czech Republic with those from other European countries at the time of the end of the treatment and 1 year follow up. Data from the 2.5 year follow up will be the subject of future presentation.

        Key words: therapeutic efficacy, eating disorders, the course and the ouctome of illness, 1 year follow up.