Metacognitieve Training bij Patiënten met een Psychotische Stoornis - Effectverschillen tussen westerse en niet-westerse patiënten

Abstract

Objective and design The purpose of this study was to compare effect differences of MCT between ‘western’ and ‘non-western’ patients diagnosed with schizophrenia/psychosis. It concerned a quantitative descriptive study with a comparative design. The examined population consisted of 40 patients with a psychotic disorder according to DSM-IV criteria, who participated in the day-care treatment for schizophrenic/psychotic patients at Erasmus MC in Rotterdam, Holland. The study took place from January 2011 until April 2011.

Method The effect of MCT was evaluated and analysed through nine instruments. These instruments measured psychopathology, major psychotic symptoms and attention disorders, language skills, intelligence and MCT evaluation.

Results Only 22 out of 40 included and approached patients with psychosis/schizophrenia completed the study. 13 out of the 18 drop-outs (72.2%) were of ‘non-western’ origin, 5 (27.8%) were of ‘western’ origin. There were a lot of missing data. The results demonstrate a significant difference between the drop-outs and those who completed the training on attention and concentration.

Conclusion Little support was found for the hypothesis that the Dutch language and cultural background played a role in the effect differences between 'western' and 'non-western' patients. However, problems with regard to generalisability and missing data have led to a distorted outcome. This calls for continued research with a (much) larger population and longitude. Only then will it be possible to say anything sensible about the effect differences of MCT between 'western' and ‘non-western’ patients.