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Comparative Study
. 2008 Jun;48(3):311-23.
doi: 10.1093/geront/48.3.311.

Effectiveness of problem-solving therapy for older, primary care patients with depression: results from the IMPACT project

Patricia Arean  1 , Mark Hegel, Steven Vannoy, Ming-Yu Fan, Jurgen Unuzter
Affiliations
Comparative Study

Effectiveness of problem-solving therapy for older, primary care patients with depression: results from the IMPACT project

Patricia Arean et al. Gerontologist. 2008 Jun.

Abstract

Purpose: We compared a primary-care-based psychotherapy, that is, problem-solving therapy for primary care (PST-PC), to community-based psychotherapy in treating late-life major depression and dysthymia.

Design and methods: The data here are from the IMPACT study, which compared collaborative care within a primary care clinic to care as usual in the treatment of 1,801 primary care patients, 60 years of age or older, with major depression or dysthymia. This study is a secondary data analysis (n = 433) of participants who received either PST-PC (by means of collaborative care) or community-based psychotherapy (by means of usual care).

Results: Older adults who received PST-PC had more depression-free days at both 12 and between 12 and 24 months (beta = 47.5, p <.001; beta = 47.0, p <.001), and they had fewer depressive symptoms and better functioning at 12 months (beta(dep) = -0.36, p <.001; beta(func) = -0.94, p <.001), than those who received community-based psychotherapy. We found no differences at 24 months.

Implications: Results suggest that PST-PC as delivered in primary care settings is an effective method for treating late-life depression.

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