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J Consult Clin Psychol. 2013 Oct;81(5):774-82. doi: 10.1037/a0032985. Epub 2013 May 6.

Pretreatment anxiety predicts patterns of change in cognitive behavioral therapy and medications for depression.

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1
Department of Psychiatry.

Abstract

OBJECTIVE:

Some studies report that initial anxiety is associated with equivocal or negative effects in depression treatment. In contrast, at least 4 studies of cognitive behavioral therapy (CBT) report that anxiety predicts greater or more rapid change in depression. Further exploration is needed to clarify the relationship between initial anxiety and depression change. Questions include the relationship between anxiety and patterns of change and time to relapse, as well as the specificity effects to CBT.

METHOD:

The study assessed the relation of Beck Anxiety Inventory anxiety scores to early rapid change and overall change in Beck Depression Inventory-II depression scores during acute depression treatment. Participants were 178 individuals enrolled in a randomized controlled trial of CBT versus antidepressant medications (ADMs) for moderate to severe depression. They were 58% female and 83% Caucasian, with an average age of 40 (SD = 11.5). Thirty-four percent (34%) were married or cohabitating. Hierarchical linear models, including quadratic growth parameters, were used to model change. The relation of anxiety to the probability of posttreatment relapse was also examined.

RESULTS:

Findings indicate that higher levels of anxiety predict early rapid change, but not overall change, in both CBT and ADM. However, patients with higher levels of intake anxiety evidenced increased risk for relapse after CBT.

CONCLUSIONS:

Early rapid change predicted by anxiety occurs across different treatment conditions, but this early rapid response is not indicative of positive overall outcome in all cases. These findings might indicate that anxiety predicts a response to nonspecific "common factors" of treatment.

PMID:
23647285
PMCID:
PMC3914142
DOI:
10.1037/a0032985
[Indexed for MEDLINE]
Free PMC Article
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