title: Effectiveness of cognitive behavioral group therapy for depression in routine practice.
abstract: BACKGROUND
  Previous research has shown that cognitive- behavioral group therapy (group CBT) is an effective treatment for depression. However, the effectiveness of this approach in routine care needs more research. The current study retrospectively examines the outcomes of patients who received group CBT for depression at a psychiatric outpatient clinic between 2003 and 2013.
  
  
  METHODS
  Based on patient records, 143 patients were identified as having received the treatment, and 88 patients were included in the outcome analyses. The Beck Depression Inventory (BDI-II) score was the main outcome measure.
  
  
  RESULTS
  The dropout rate was 17.5%. The average BDI-II score decreased from 28.5 to 18.5 from pre-treatment to post-treatment and remained stable at 3-months follow-up. The effect sizes at post-treatment and follow-up were large (d = .97 and d = 1.10, respectively). At post-treatment, 44% of the patients showed a significant improvement in depression, including 30% who recovered; at follow-up, the proportions increased to 57% and 40%, respectively. No predictors of dropout or treatment response were found.
  
  
  CONCLUSIONS
  Group CBT for depression can be delivered in routine care settings with good results. However, there are still many patients who drop out or do not benefit from treatment.
authors.forename: Jens C
authors.initials: JC
authors.lastname: Thimm
authors.forename: Liss
authors.initials: L
authors.lastname: Antonsen
mesh_terms: D000328:Adult; D015928:Cognitive Behavioral Therapy / Q000379:methods*; D003866:Depressive Disorder / Q000628:therapy*; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D017063:Outcome Assessment, Health Care; D010352:Patient Dropouts / Q000706:statistics & numerical data; D011615:Psychotherapy, Group / Q000379:methods*; D012189:Retrospective Studies; D016896:Treatment Outcome