title: Evaluating the quality of life of long-term care residents with dementia.
abstract: OBJECTIVE
  This study's purpose was to better understand existing measures of quality of life in dementia residents of long-term care facilities.
  
  
  METHODS
  We gathered data from 421 residents in 45 facilities. Analyses determined the psychometric properties of each measure, estimated the relationship between measures, and identified the extent to which resident characteristics predicted scores.
  
  
  RESULTS
  Most instruments had good to excellent dispersion and interrater reliability, and most scales had good to excellent internal consistency. Proxy measures tended to correlate best with each other, less well with observational measures, and least well with resident measures. Resident cognition and activities of daily living (ADLs) function were associated with most quality-of-life measures but predicted no more than a quarter of the observed variance in any measure.
  
  
  CONCLUSIONS
  Various measures and sources of data provide different perspectives on quality of life. No "gold standard" exists; so a combination of methods and sources is likely to provide the most complete picture of quality of life.
authors.affiliation: Cecil G. Sheps Center for Health Services Research, Department of Family Medicine, University of North Carolina Chapel Hill, NC 27599-7595, USA. psloane@med.unc.edu
authors.forename: Philip D
authors.initials: PD
authors.lastname: Sloane
authors.forename: Sheryl
authors.initials: S
authors.lastname: Zimmerman
authors.forename: Christianna S
authors.initials: CS
authors.lastname: Williams
authors.forename: Peter S
authors.initials: PS
authors.lastname: Reed
authors.forename: Karminder S
authors.initials: KS
authors.lastname: Gill
authors.forename: John S
authors.initials: JS
authors.lastname: Preisser
mesh_terms: D000368:Aged; D000369:Aged, 80 and over; D040561:Assisted Living Facilities; D003704:Dementia / Q000451:nursing*; D006801:Humans; D008134:Long-Term Care; D009735:Nursing Homes; D011594:Psychometrics; D011788:Quality of Life