Einfluss von persönlichkeitsstörungen auf den erfolg einer multimodalen verhaltenstherapie bei zwangserkrankungen - Teil I: grundprobleme

Comorbid personality disorders are discussed as risk factors for a negative treatment outcome in obsessive-compulsive disorder (OCD). However, conflicting findings have emerged. As comorbidity rates between OCD and personality disorders are high the possible impact of personality disorders on treatment outcome in OCD is of major clinical relevance. Several reasons for inconsistent findings need consideration. The concept of personality disorders itself is afflicted with major inherent problems which are also responsible for a slow progress in the development of widely accepted diagnostic instruments for personality disorders. As a result, a wide range of diagnostic instruments exists, reducing comparability of results. Other studies show large methodological shortcomings limiting inferences from their results. The aim of the present paper is to discuss these methodological problems and to give recommendations to avoid or reduce them.