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Am J Manag Care. 2008 Feb;14(2):95-100.

Long-term cost effects of collaborative care for late-life depression.

Author information

  • 1Department of Psychiatry and Behavioral Sciences, University of Washington School of Medicine, Box 356560, 1959 NE Pacific St, Seattle, WA 98195-6560, USA. unutzer@u.washington.edu

Abstract

OBJECTIVE:

To determine the long-term effects on total healthcare costs of the Improving Mood: Promoting Access to Collaborative Treatment (IMPACT) program for late-life depression compared with usual care.

STUDY DESIGN:

Randomized controlled trial with enrollment from July 1999 through August 2001. The IMPACT trial, conducted in primary care practices in 8 delivery organizations across the United States, enrolled 1801 depressed primary care patients 60 years or older. Data are from the 2 IMPACT sites for which 4-year cost data were available. Trial enrollment across these 2 health maintenance organizations was 551 patients.

METHODS:

Participants were randomly assigned to the IMPACT intervention (n = 279) or to usual primary care (n = 272). Intervention patients had access to a depression care manager who provided education, behavioral activation, support of antidepressant medication management prescribed by their regular primary care provider, and problem-solving treatment in primary care for up to 12 months. Care managers were supervised by a psychiatrist and a primary care provider. The main outcome measures were healthcare costs during 4 years.

RESULTS:

IMPACT participants had lower mean total healthcare costs ($29 422; 95% confidence interval, $26 479-$32 365) than usual care patients ($32 785; 95% confidence interval, $27 648-$37 921) during 4 years. Results of a bootstrap analysis suggested an 87% probability that the IMPACT program was associated with lower healthcare costs than usual care.

CONCLUSION:

Compared with usual primary care, the IMPACT program is associated with a high probability of lower total healthcare costs during a 4-year period.

PMID:
18269305
[PubMed - indexed for MEDLINE]
PMCID:
PMC3810022
Free PMC Article

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