European psychiatric treatment guidelines: is the glass half full or half empty?

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Abstract
PurposeWe assessed the quality of European treatment guidelines in the field of mental health that have been produced by national psychiatric associations. The main focus was the question of whether the development process of the guidelines followed basic principles of evidence-based medicine.MethodsSixty-one European clinical practice guidelines from 14 countries, published between 1998 and 2003, were assessed using the ‘Appraisal of Guidelines for Research and Evaluation (AGREE) Instrument’. The domain score was calculated for each of the six domains of the AGREE instrument. The seven items of the domain “rigor of development” and one additional item concerning national particularities were assessed in detail.ResultsThe mean scores in the six domains were rather low, although the quality varied among the different guidelines. The highest mean score was obtained in the domain clarity and presentation (70.8% S.D. 23.5), the lowest on editorial independence (19.7% S.D. 29.3). The recommendations of about half of the assessed guidelines could be considered to be evidence-based.ConclusionThe assessed guidelines showed a broad range of quality: some producers attached importance to an evidence-based development process; but in spite of this, a large number of guidelines were only of middling quality. As national particularities are only rarely mentioned and the development process of guidelines is complex, an international collaboration that aims toward the production of shareable guidelines might be promising.