title: Intellectual disability and co-occurring mental health and physical disorders in aggressive behaviour.
abstract: BACKGROUND
  Mental and physical health problems are more prevalent among individuals with an intellectual disability (ID) than in the general population. Studies suggest that there may be significant associations between these co-occurring disorders and aggressive behaviour, but few studies have taken into account multiple mental and physical problems, as well as their level of severity.
  
  
  OBJECTIVE
  The main goal of this study was to identify the associations between different types of aggressive behaviour and various types of physical and mental health problems.
  
  
  METHODS
  These associations were explored through a cross-sectional study of 296 adult men and women with mild or moderate ID living in the community and receiving ID services. Information was gathered through interviews with ID participants, case managers and file review.
  
  
  RESULTS
  The results show that individuals with ID who have more mental and physical health problems have higher odds of displaying aggressive behaviour than those with fewer and less severe physical health problems.
  
  
  CONCLUSIONS
  These results can help guide future prevention and intervention strategies for persons with ID who display aggressive behaviour or who are at risk of become aggressive.
authors: Department of Psychiatry, McGill University, Montréal, Québec, Canada; Douglas Mental Health University Institute Research Centre, Montréal, Québec, Canada.
authors: A G
authors: AG
authors: Crocker
authors: A
authors: A
authors: Prokić
authors: D
authors: D
authors: Morin
authors: A
authors: A
authors: Reyes
mesh_terms: D000328:Adult; D000374:Aggression / Q000502:physiology*; D015897:Comorbidity; D005260:Female; D006304:Health Status; D006801:Humans; D008607:Intellectual Disability / Q000453:epidemiology / Q000503:physiopathology*; D008297:Male; D001523:Mental Disorders / Q000453:epidemiology; D008875:Middle Aged
keywords: aggressive behaviour; challenging behaviour; co-occurring disorders; intellectual disabilities; mental health; physical health