title: Bullying behaviour among Norwegian adolescents: psychiatric diagnoses and school well-being in a clinical sample.
abstract: BACKGROUND
  Few studies have focused the association between bullying and psychiatric disorders in clinical samples. The aim of this study was to examine if bullying behaviour was associated with psychiatric disorders and school well-being.
  
  
  METHODS
  The cross-sectional study was part of a health survey at St. Olav's University Hospital. The sample consisted of 685 adolescent patients aged 13-18 years who completed an electronic questionnaire. Clinical diagnoses were collected from clinical records.
  
  
  RESULTS
  In this clinical psychiatric sample, 19% reported being bullied often or very often, and 51% reported being bullied from time to time. Logistic regression analyses showed associations between being a victim and having a mood disorder, and between being involved in bullying behaviour and reporting lower scores on school well-being. No difference was found in bullying behaviour on gender, age and SES.
  
  
  CONCLUSIONS
  The risk of being a victim was high among adolescents in this clinical sample, especially among patients with mood disorders. Any involvement in bullying behaviour was associated with reduced school well-being.
authors.affiliation: Hanne Hoff Hansen, Regional Centre for Child and Youth Mental Health and Child Welfare, Faculty of Medicine, Norwegian University of Science and Technology (NTNU) , Pb 8905, MTFS, N-7491, Trondheim , Norway.
authors.forename: Hanne Hoff
authors.initials: HH
authors.lastname: Hansen
authors.forename: Cecilie Edh
authors.initials: CE
authors.lastname: Hasselgård
authors.forename: Anne Mari
authors.initials: AM
authors.lastname: Undheim
authors.forename: Marit Sæbø
authors.initials: MS
authors.lastname: Indredavik
mesh_terms: D000293:Adolescent; D000294:Adolescent Behavior / Q000523:psychology; D058445:Bullying / Q000523:psychology*; D019548:Crime Victims / Q000523:psychology*; D003430:Cross-Sectional Studies; D005260:Female; D006306:Health Surveys; D006801:Humans; D008297:Male; D001523:Mental Disorders / Q000209:etiology* / Q000523:psychology; D010549:Personal Satisfaction; D012574:Schools; D013334:Students / Q000523:psychology; D011795:Surveys and Questionnaires
keywords: Adolescents; Bullying; Mental health; Psychiatric disorders; School well-being