Abstract
This is a prospective study examining decision-making abilities in Chinese schizophrenia patients in Hong Kong. We interviewed patients before their discharge from hospital after a psychotic relapse, examining their decision regarding whether or not they would take maintenance neuroleptic treatment. Decision-making abilities were assessed by the MacArthur Competence Assessment Tool-Treatment, a semistructured questionnaire. We examined their relationships with demographic, clinical, and cognitive variables, measured by standardized instruments. Eighty-one participants were seen. Weaknesses were noted in a range of relevant decision-making abilities. Positive and negative schizophrenic symptoms, specifically lack of judgment and insight, difficulty in abstract thinking, unusual thought content, and conceptual disorganization, were found to be correlated with performance in decision-making abilities, as were cognitive deficits. Verbal working memory was a moderate predictor of the ability to understand treatment information. Decision-making impairments and negative treatment attitude were related to the decision not to adhere to medication.
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