title: ICF Core Sets for obesity.
abstract: OBJECTIVE
  To report on the results of the consensus process integrating evidence from preliminary studies to develop the first version of the Comprehensive ICF Core Set and the Brief ICF Core Set for obesity.
  
  
  METHODS
  A formal decision-making and consensus process integrating evidence gathered from preliminary studies was followed. Preliminary studies included a Delphi exercise, a systematic review and an empirical data collection. After training in the ICF and based on these preliminary studies relevant ICF categories were identified in a formal consensus process by international experts from different backgrounds.
  
  
  RESULTS
  The preliminary studies identified a set of 219 ICF categories at the second, third and fourth ICF levels with 87 categories on body functions, 34 on body structures, 53 on activities and participation and 45 on environmental factors. Twenty-one experts attended the consensus conference on obesity (18 physicians with various sub-specializations and 3 physical therapists). Altogether 109 categories (108 second-level and one third-level categories) were included in the Comprehensive ICF Core Set with 30 categories from the component body functions, 18 from body structures, 28 from activities and participation and 33 from environmental factors. The Brief ICF Core Set included a total of 9 second-level categories with 3 on body functions, 4 on activities and participation and 2 on environmental factors. No body-structures categories were included in the Brief ICF Core Set.
  
  
  CONCLUSIONS
  A formal consensus process integrating evidence and expert opinion based on the ICF framework and classification led to the definition of ICF Core Sets for obesity. Both the Comprehensive ICF Core Set and the Brief ICF Core Set were defined.
authors.affiliation: Department of Internal Medicine, University Hospital, Bern, Switzerland.
authors.forename: Armin
authors.initials: A
authors.lastname: Stucki
authors.forename: Peter
authors.initials: P
authors.lastname: Daansen
authors.forename: Michaela
authors.initials: M
authors.lastname: Fuessl
authors.forename: Alarcos
authors.initials: A
authors.lastname: Cieza
authors.forename: Erika
authors.initials: E
authors.lastname: Huber
authors.forename: Richard
authors.initials: R
authors.lastname: Atkinson
authors.forename: Nenad
authors.initials: N
authors.lastname: Kostanjsek
authors.forename: Gerold
authors.initials: G
authors.lastname: Stucki
authors.forename: Jörg
authors.initials: J
authors.lastname: Ruof
mesh_terms: D000203:Activities of Daily Living / Q000145:classification; D002908:Chronic Disease; D003245:Consensus Statements as Topic; D003695:Delivery of Health Care; D003697:Delphi Technique; D004185:Disability Evaluation; D006233:Persons with Disabilities / Q000145:classification; D006282:Health Personnel; D006305:Health Status Indicators; D006801:Humans; D009765:Obesity / Q000145:classification*; D014944:World Health Organization