title: Agitated behaviours among the institutionalized elderly with dementia: validation of the Korean version of the Cohen-Mansfield Agitation Inventory.
abstract: OBJECTIVE
  To analyze the factor structure, the criterion validity, the internal consistency, inter-rater reliability and test-retest reliability of the Korean version of Cohen-Mansfield Agitation Inventory, to provide data on the frequency and distribution of agitated behaviours, and to compare patterns of agitated behaviours among the institutionalized elderly with Alzheimer's disease (AD) or Vascular dementia (VaD).
  
  
  METHODS
  The Korean version of the Cohen-Mansfield Agitation Inventory (CMAI-K) was administered to a total of 257 elderly with AD or VaD in a nursing home in Seoul, Korea. Three kinds of reliability and criterion validity were tested. Factor analysis using principal component analysis with the varimax rotation was performed. To identify different patterns of agitated behaviours, multiple logistic regression analysis was used.
  
  
  RESULTS
  This study demonstrated satisfactory reliability and validity for the CMAI-K as an instrument measuring agitation in Korean dementia sufferers in nursing homes. Eighty-three percent of the subjects manifested one or more agitated behaviours at least once a week. Factor analysis yielded four subtypes of agitation: physically aggressive behaviours, physically nonaggressive behaviours, verbally agitated behaviours, and hiding/hoarding behaviours.
  
  
  CONCLUSIONS
  These results indicate that the CMAI-K is a reliable and valid instrument to measure agitated behaviours in Korean elderly with AD or VaD. These results validate and expand previous research on the agitation in dementia, and guide in the development of interventions.
authors.affiliation: Department of Psychiatry, Hallym University Medical Center, Hangang Sacred Heart Hospital, Seoul, Korea. suhgh@chollian.net
authors.forename: Guk-Hee
authors.initials: GH
authors.lastname: Suh
mesh_terms: D000368:Aged; D000369:Aged, 80 and over; D000544:Alzheimer Disease / Q000523:psychology*; D015140:Dementia, Vascular / Q000523:psychology*; D004812:Epidemiologic Methods; D005260:Female; D015577:Geriatric Assessment / Q000379:methods; D006707:Homes for the Aged; D006801:Humans; D008297:Male; D008875:Middle Aged; D009483:Neuropsychological Tests; D009735:Nursing Homes; D011594:Psychometrics; D011595:Psychomotor Agitation / Q000175:diagnosis* / Q000209:etiology