Per Hove Thomsen

Structure and clinical correlates of obsessive–compulsive symptoms in a large sample of children and adolescents: a factor analytic study across five nations

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DOI

  • D. R M A Højgaard
  • E. L. Mortensen, Department of Public Health and Center for Healthy Aging, Københavns Universitet
  • ,
  • Tord Ivarsson, Center for Child and Adolescent Mental Health, Eastern and Southern Norway, Oslo, Norway
  • ,
  • Katja Anna Hybel
  • Gudmundur Skarphedinsson, Center for Child and Adolescent Mental Health, Eastern and Southern Norway, Oslo, Norway, Norge
  • Judith Becker Nissen
  • Robert Valderhaug, Hospital of Aalesund, Regional Centre for Child and Youth Mental Health and Child Welfare, Trondheim, Norge
  • Kitty Dahl, Center for Child and Adolescent Mental Health, Eastern and Southern Norway, Oslo, Norway
  • ,
  • Bernhard Weidle, St Olavs Hospital, Trondheim University Hospital, Norwegian University of Science and Technology, Faculty of Medicine, Regional Center for Child and Youth Mental Health and Child Welfare, Trondheim, Norway, Norge
  • Nor Christian Torp, Center for Child and Adolescent Mental Health, Eastern and Southern Norway, Oslo, Norway, Department of Child and Adolescent Psychiatry, Division of Mental Health and Addiction, Vestre Viken Hospital, Drammen, Norge
  • M. Grados, John Hopkins Children’s Center, USA
  • A. B. Lewin, University of South Florida St. Petersburg, USA
  • K. H. Melin, Queen Silvia Children's Hospital
  • ,
  • E. A. Storch, University of South Florida St. Petersburg
  • ,
  • L. H. Wolters, Academic Center for Child and Adolescent Psychiatry, de Bascule, Amsterdam, Holland
  • T. K. Murphy, University of South Florida St. Petersburg
  • ,
  • Edmund J S Sonuga-Barke, Department of Psychology, University of Southampton, Southampton, Storbritannien
  • Per Hove Thomsen

The underlying structure of obsessive–compulsive disorder (OCD) remains to be confirmed in child and adolescent populations. In this paper we report the first factor analytic study of individual OCD items from Children’s Yale-Brown Obsessive Compulsive Scale (CY-BOCS). OCD symptoms were assessed using the CY-BOCS symptom checklist in a sample of 854 patients with OCD (7–18 years of age) recruited from clinics in five countries. Pooled data were subjected to exploratory and confirmatory factor analysis (CFA) to identify the optimal factor structure. Various models were tested for age and gender subgroups. Also, the invariance of the solution across age and gender was tested and associations with demographic and clinical factors were explored. A three-factor model provided the best-fit solution. It consisted of the following factors: (1) harm/sexual, (2) symmetry/hoarding, (3) contamination/cleaning. The factor structure was invariant for age and gender across subgroups. Factor one was significantly correlated with anxiety, and factor two with depression and anxiety. Factor three was negatively correlated with tic disorder and attention-deficit/hyperactivity disorder (ADHD). Females had higher scores on factor two than males. The OCD symptom structure in children and adolescents is consistent across age and gender and similar to results from recent child and adolescents although hoarding may not be a separate factor. Our three-factor structure is almost identical to that seen in early studies on adults. Common mental disorders had specific patterns of associations with the different factors.

OriginalsprogEngelsk
TidsskriftEuropean Child & Adolescent Psychiatry
Vol/bind26
Nummer3
Sider (fra-til)281-291
Antal sider11
ISSN1018-8827
DOI
StatusUdgivet - 1 mar. 2017

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