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Published in: BMC Psychiatry 1/2014

Open Access 01-12-2014 | Research article

A waitlist-controlled trial of group cognitive behavioural therapy for depression and anxiety in Parkinson’s disease

Authors: Lakkhina Troeung, Sarah J Egan, Natalie Gasson

Published in: BMC Psychiatry | Issue 1/2014

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Abstract

Background

The aim of this study was to evaluate the efficacy of a group Cognitive Behavioural Therapy (CBT) treatment for depression and anxiety in Parkinson’s disease (PD).

Methods

A waitlist-controlled trial design was used. Eighteen adults with PD and a comorbid DSM-IV-TR diagnosis of depression and/or anxiety were randomised to either Intervention (8-week group CBT treatment) or Waitlist (8-week clinical monitoring preceding treatment). The Depression, Anxiety, Stress Scale-21 (DASS-21) was the primary outcome. Assessments were completed at Time 1 (pretreatment), Time 2 (posttreatment/post-waitlist) and 1-month and 6-month follow-ups.

Results

At Time 2, participants who received CBT reported greater reductions in depression (M change = -2.45) than Waitlist participants (M change = .29) and this effect was large, d = 1.12, p = .011. Large secondary effects on anxiety were also observed for CBT participants, d = .89, p = .025. All treatment gains were maintained and continued to improve during the follow-up period. At 6-month follow-up, significant and large effects were observed for both depression (d = 2.07) and anxiety (d = 2.26).

Conclusions

Group CBT appears to be an efficacious treatment approach for depression and anxiety in PD however further controlled trials with larger numbers of participants are required.

Trial registration

Australian New Zealand Clinical Trials Registry (Trial ID: ACTRN12610000455​066)
Appendix
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Metadata
Title
A waitlist-controlled trial of group cognitive behavioural therapy for depression and anxiety in Parkinson’s disease
Authors
Lakkhina Troeung
Sarah J Egan
Natalie Gasson
Publication date
01-12-2014
Publisher
BioMed Central
Published in
BMC Psychiatry / Issue 1/2014
Electronic ISSN: 1471-244X
DOI
https://doi.org/10.1186/1471-244X-14-19

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