title: Efficacy of a Danish version of the Cool Kids program: a randomized wait-list controlled trial.
abstract: OBJECTIVE
  The purpose of the study was to evaluate the efficacy of a Danish version of the Cool Kids program, a generic manualized group cognitive-behavioural therapy (CBT) program for anxiety disorders among children and adolescents.
  
  
  METHODS
  Children and adolescents (age 7-16) with a primary anxiety disorder diagnosis (n = 109) were randomly allocated to group CBT or a wait-list (WL) control condition at a Danish university clinic.
  
  
  RESULTS
  Results showed that the Danish version of the Cool Kids program was efficacious with 48.2% free of all anxiety diagnoses at post-treatment, compared with 5.7% in the WL condition, and large effect sizes on self-report measures of child anxiety symptoms rated by child, mother, and father (ηp2 range = 0.18-0.24). Children and adolescents improved further from post-treatment to 3-month follow-up, and this improvement was maintained at 12-month follow-up. Participants with a primary diagnosis of social phobia (SoP) showed less improvement compared with other anxiety diagnoses.
  
  
  CONCLUSIONS
  The study contributes to the evidence base for the Cool Kids program, previously only evaluated by its developers in Australia. Generic group CBT programs may not be the most appropriate treatment for children and adolescents with primary SoP.
authors.affiliation: Department of Psychology and Behavioural Sciences, Aarhus University, Aarhus C, Denmark.
authors.forename: K
authors.initials: K
authors.lastname: Arendt
authors.affiliation: Department of Psychology and Behavioural Sciences, Aarhus University, Aarhus C, Denmark.
authors.forename: M
authors.initials: M
authors.lastname: Thastum
authors.affiliation: Department of Psychology and Behavioural Sciences, Aarhus University, Aarhus C, Denmark.
authors.forename: E
authors.initials: E
authors.lastname: Hougaard
keywords: adolescents; anxiety; children; cognitive-behavioural therapy; randomized controlled trial