title: The Norwegian Translation of the Adult Attention-Deficit/Hyperactivity Disorder Quality of Life Scale: Validation and Assessment of QoL in 313 Adults With ADHD.
abstract: OBJECTIVE
  The aim of the study was to validate the Norwegian version of the Adult Attention-Deficit/Hyperactivity Disorder Quality of Life (AAQoL) scale and to explore Quality of Life (QoL) and functional outcomes in adults with ADHD.
  
  
  METHODS
  A total of 313 adults with ADHD participated in the study. Data were collected from medical records and self-report questionnaires. Confirmatory factor analysis was performed to assess the model fit of the translated AAQoL. Chi-square statistics and t tests were used to investigate sample characteristics.
  
  
  RESULTS
  The analyses showed acceptable model fit between data and the model. Chi square = 863.179 (371 df, p < .0000), root mean square error of approximation (RMSEA) = 0.069 (90% confidence interval [CI]), comparative fit index (CFI) = 0.873, and Tucker-Lewis index (TLI) = 0.821. Cronbach's alpha range for the scales was .761 to .869. The sample was characterized by poor QoL and impairment.
  
  
  CONCLUSIONS
  The translated AAQoL is showing good initial indications of validity with acceptable psychometric properties in the sample. ADHD was associated with impairments in QoL, symptoms, and functional outcomes.
authors.affiliation: 1 North-Trondelag Hospital Trust, Levanger, Norway.|2 Norwegian University of Science and Technology, Trondheim, Norway.
authors.forename: Bjørn
authors.initials: B
authors.lastname: Gjervan
authors.affiliation: 2 Norwegian University of Science and Technology, Trondheim, Norway.|3 St. Olavs Hospital, Trondheim, Norway.
authors.forename: Terje
authors.initials: T
authors.lastname: Torgersen
authors.affiliation: 2 Norwegian University of Science and Technology, Trondheim, Norway.
authors.forename: Odin
authors.initials: O
authors.lastname: Hjemdal
mesh_terms: D000328:Adult; D001289:Attention Deficit Disorder with Hyperactivity; D006801:Humans; D009664:Norway; D011594:Psychometrics; D011788:Quality of Life; D015203:Reproducibility of Results; D011795:Surveys and Questionnaires
keywords: AAQoL; ADHD; ADHD-associated problems; adult ADHD; health-related quality of life