title: Development of the Huntington disease work function scale.
abstract: OBJECTIVE
  A work function measure specific for persons with prodromal Huntington disease (HD) was created to assist with workplace accommodations.
  
  
  METHODS
  A self-report HD Work Function (HDWF) measure was developed from focus group and expert validation.
  
  
  RESULTS
  Pilot studies with 238 people with prodromal HD, and 185 companions; and 89 people without prodromal HD, and 70 companions indicate that HDWF has acceptable internal consistency (Cronbach α = 0.77), acceptable interrater reliability (r = 0.58), and acceptable convergent validity with selected items from the Endicott Work Productivity Scale (r = -0.56), Social Adjustment Scale-Self Report (r = -0.29), and Everyday Cognition (r = -0.70). The HDWF can distinguish between people with prodromal HD and people with an HD family history who do not have prodromal HD (P < 0.0001).
  
  
  CONCLUSIONS
  The HDWF is a brief self-assessment that may be used to monitor work function.
authors.affiliation: American Board of Internal Medicine, Philadelphia, PA, USA.
authors.forename: Bradley
authors.initials: B
authors.lastname: Brossman
authors.forename: Janet K
authors.initials: JK
authors.lastname: Williams
authors.forename: Nancy
authors.initials: N
authors.lastname: Downing
authors.forename: James A
authors.initials: JA
authors.lastname: Mills
authors.forename: Jane S
authors.initials: JS
authors.lastname: Paulsen
mesh_terms: D000328:Adult; D005260:Female; D017144:Focus Groups; D006801:Humans; D006816:Huntington Disease / Q000503:physiopathology*; D008297:Male; D008875:Middle Aged; D010865:Pilot Projects; D062706:Prodromal Symptoms; D015203:Reproducibility of Results; D012647:Self-Assessment; D011795:Surveys and Questionnaires; D014938:Work Capacity Evaluation; D055815:Young Adult