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Behav Res Ther. 2013 May;51(4-5):185-96. doi: 10.1016/j.brat.2013.01.003. Epub 2013 Jan 25.

Randomized clinical trial of adapted mindfulness-based stress reduction versus group cognitive behavioral therapy for heterogeneous anxiety disorders.

Author information

1
Department of Psychology and Neuroscience, University of Colorado Boulder, 345 UCB Muenzinger, Boulder, CO 80309-0345, USA. Joanna.Arch@Colorado.edu

Abstract

OBJECTIVE:

To compare a mindfulness-based intervention with cognitive behavioral therapy (CBT) for the group treatment of anxiety disorders.

METHOD:

One hundred five veterans (83% male, mean age=46 years, 30% minority) with one or more DSM-IV anxiety disorders began group treatment following randomization to adapted mindfulness-based stress reduction (MBSR) or CBT.

RESULTS:

Both groups showed large and equivalent improvements on principal disorder severity thru 3-month follow up (ps<.001, d=-4.08 for adapted MBSR; d=-3.52 for CBT). CBT outperformed adapted MBSR on anxious arousal outcomes at follow up (p<.01, d=.49) whereas adapted MBSR reduced worry at a greater rate than CBT (p<.05, d=.64) and resulted in greater reduction of comorbid emotional disorders (p<.05, d=.49). The adapted MBSR group evidenced greater mood disorders and worry at Pre, however. Groups showed equivalent treatment credibility, therapist adherence and competency, and reliable improvement.

CONCLUSIONS:

CBT and adapted MBSR were both effective at reducing principal diagnosis severity and somewhat effective at reducing self-reported anxiety symptoms within a complex sample. CBT was more effective at reducing anxious arousal, whereas adapted MBSR may be more effective at reducing worry and comorbid disorders.

PMID:
23419887
DOI:
10.1016/j.brat.2013.01.003
[Indexed for MEDLINE]
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