title: Effectiveness of problem-solving therapy for older, primary care patients with depression: results from the IMPACT project.
abstract: OBJECTIVE
  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.
  
  
  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.
  
  
  CONCLUSIONS
  Results suggest that PST-PC as delivered in primary care settings is an effective method for treating late-life depression.
authors.affiliation: University of California San Francisco, Department of Psychiatry, San Francisco, CA 94143, USA. pata@lppi.ucsf.edu
authors.forename: Patricia
authors.initials: P
authors.lastname: Arean
authors.forename: Mark
authors.initials: M
authors.lastname: Hegel
authors.forename: Steven
authors.initials: S
authors.lastname: Vannoy
authors.forename: Ming-Yu
authors.initials: MY
authors.lastname: Fan
authors.forename: Jurgen
authors.initials: J
authors.lastname: Unuzter
mesh_terms: D000368:Aged; D003863:Depression / Q000523:psychology / Q000628:therapy*; D004522:Educational Status; D005194:Family Practice / Q000379:methods*; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D008297:Male; D010549:Personal Satisfaction; D011340:Problem Solving; D011569:Psychiatric Status Rating Scales; D011613:Psychotherapy / Q000379:methods*; D013997:Time Factors; D016896:Treatment Outcome