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QUESTION: In primary care patients with panic disorder, is collaborative care (CC) involving pharmacotherapy more cost effective than usual care (UC) for increasing anxiety free days?
Design
Cost effectiveness analysis (from a payer or plan perspective) based on a randomised {allocation concealed*}†, blinded (outcome assessors)*, controlled trial with 12 months of follow up.
Setting
3 primary care clinics in Seattle, Washington, USA.
Patients
115 patients who were 18–65 years of age (mean age 41 y, 57% women), met DSM–IV criteria for panic disorder with ≥1 panic attack in the past month, spoke English, and had a telephone. Exclusion criteria were current psychiatric treatment or disability benefit claims. Follow up was 94%.
Intervention
Patients were allocated to a multifaceted CC intervention (n=57) or UC (n=58). The CC intervention consisted of an initial psychiatric visit at which paroxetine was prescribed (10 mg/d to start, with increases to a …
Footnotes
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Sources of funding: Smith-Kline-Beecham and National Institute of Mental Health Services Divison.
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For correspondence: Dr W J Katon, University of Washington Medical School, Seattle, WA, USA.wkaton{at}u.washington.edu
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↵† Information provided by author.