title: Mental illness, problem behaviour, needs and service use in adults with intellectual disability.
abstract: Mental ill health in adults with intellectual disability (ID) is a neglected field in psychiatry and thus still widely understudied. This paper provides data on the prevalence of mental illness and problem behaviour and analyses support needs, mental health service use and psychotropic medication in a representative sample of adults with mild to moderate ID.
  
  
  
  A set of well-established instruments was used to assess the main parameters in n = 371 participants recruited within a cross-sectional epidemiological multicentre study using a stratified randomised cluster sampling.
  
  
  
  Point prevalence of mental disorders was 10.8 %, that of problem behaviour 45.3 %. Most study participants needed help in specific lower order need areas (e.g., money budgeting, food, accommodation), and these need areas were mostly rated as met. The highest ratios of unmet to met need were found with respect to sexuality issues and with respect to mental health problems. The focus of psychiatric treatment was psychotropic medication.
  
  
  
  Referring to ICD-10 based diagnostic criteria and consequently avoiding confusing problem behaviour with mental disorders, point prevalence of mental disorders was lower than in the general population. A systematic deficit in meeting mental health problems in adults with ID indicates the need for implementing strategies to maximise the quality of identification and management of mental disorders.
authors.affiliation: Department of Psychiatry and Psychotherapy, Technische Universität Dresden, Fetscherstr. 74, 01307, Dresden, Germany. matthias.schuetzwohl@uniklinikum-dresden.de.
authors.forename: Matthias
authors.initials: M
authors.lastname: Schützwohl
authors.affiliation: Department of Psychiatry and Psychotherapy, Technische Universität Dresden, Fetscherstr. 74, 01307, Dresden, Germany.
authors.forename: Andrea
authors.initials: A
authors.lastname: Koch
authors.affiliation: Department of Psychiatry II, Ulm University, Ulm, Germany.
authors.forename: Nadine
authors.initials: N
authors.lastname: Koslowski
authors.affiliation: Department of Psychiatry II, Ulm University, Ulm, Germany.
authors.forename: Bernd
authors.initials: B
authors.lastname: Puschner
authors.affiliation: Mental Health Services Research Group, Central Institute of Mental Health, Mannheim, Germany.
authors.forename: Elke
authors.initials: E
authors.lastname: Voß
authors.affiliation: Mental Health Services Research Group, Central Institute of Mental Health, Mannheim, Germany.
authors.forename: Hans Joachim
authors.initials: HJ
authors.lastname: Salize
authors.affiliation: Department of Psychiatry and Psychotherapy, Technische Universität Dresden, Fetscherstr. 74, 01307, Dresden, Germany.
authors.forename: Andrea
authors.initials: A
authors.lastname: Pfennig
authors.affiliation: Department of Psychiatry and Psychotherapy, Technische Universität Dresden, Fetscherstr. 74, 01307, Dresden, Germany.
authors.forename: Anke
authors.initials: A
authors.lastname: Vogel
mesh_terms: D000328:Adult; D000368:Aged; D003430:Cross-Sectional Studies; D005260:Female; D005858:Germany; D006801:Humans; D008607:Intellectual Disability / Q000453:epidemiology* / Q000523:psychology*; D008297:Male; D001523:Mental Disorders / Q000453:epidemiology* / Q000523:psychology*; D008605:Mental Health Services / Q000706:statistics & numerical data*; D008875:Middle Aged; D020380:Needs Assessment / Q000706:statistics & numerical data*; D000066553:Problem Behavior / Q000523:psychology*; D014600:Utilization Review / Q000706:statistics & numerical data; D055815:Young Adult
keywords: Health services; Intellectual disability; Mental disorders; Needs assessment