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    Rights statement: This is the author’s version of a work that was accepted for publication in Psychiatry Research. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in Psychiatry Research, 285, 2020 DOI: 10.1016/j.psychres.2020.112806

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Is cognitive behavioural therapy effective for individuals experiencing thought disorder?

Research output: Contribution to journalJournal article

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Article number112806
<mark>Journal publication date</mark>1/03/2020
<mark>Journal</mark>Psychiatry Research
Volume285
Number of pages7
Publication StatusPublished
Early online date21/01/20
<mark>Original language</mark>English

Abstract

Various clinical guidelines recommend cognitive behavioural therapy (CBT) to treat psychosis without reference to patients’ thought disorder. However, there is a risk that disorganized thinking hampers CBT. We tested the prediction that thought disorder would interfere with the effectiveness of CBT for hallucinations and delusions, compared to treatment as usual and supportive counselling, in secondary data from two large, single blind randomised controlled trials. We fitted latent growth curve models separately for the development of frequency and distress of symptoms. CBT was significantly more successful than counselling in reducing delusional frequency in the short term and hallucinatory distress at any point, even in those with relatively high thought disorder. We found little evidence that clinicians should restrict CBT in this subgroup of patients. Nevertheless, the findings highlight the importance of effective initial treatment of thought disorder in maximising the benefit of CBT for psychosis, particularly for reducing distress from hallucinations.

Bibliographic note

This is the author’s version of a work that was accepted for publication in Psychiatry Research. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in Psychiatry Research, 285, 2020 DOI: 10.1016/j.psychres.2020.112806