title: [Application of the Brazilian version of the CDR scale in samples of dementia patients].
abstract: OBJECTIVE
  The objective of the study was the analysis of agreement between the CDR scale with diagnostic criteria and mini mental state examination (MMSE), as well as correlation with Blessed scale, in a sample of Southern Brazilian patients.
  
  
  METHODS
  The CDR scale was cross-sectionally evaluated in 269 dementia patients' Alzheimer's disease (AD) vascular dementia, and questionable. The NINCDS-ADRDA criteria for probable AD and the NINDS-AIREN for probable vascular dementia were the gold standard. The MMSE, the Blessed scale, the Hachinski ischemic score, and a battery of cognitive tests were also applied.
  
  
  RESULTS
  The agreement to gold standard was good (kappa=0.73), while to MMSE categorized was moderate (kappa=0.53). A significant correlation with the Blessed scale (r=0.96; p=0.001) was observed. Education and age were similar among CDR categories.
  
  
  CONCLUSIONS
  The global score agreement of the CDR scale with the gold standard was good, and with the MMSE was moderate. We also observed face validity for dementia severity. No impact of education was observed upon CDR global scores.
authors.affiliation: Ambulatório de Neurogeriatria, Serviço de Neurologia, Faculdade de Medicina, Universidade Federal do Rio Grande do Sul, Rua Ramiro Barcelos 2350/2040, 90035-003 Porto Alegre RS, Brazil.
authors.forename: Alberto Luiz Grigoli
authors.initials: AL
authors.lastname: Maia
authors.forename: Cláudia
authors.initials: C
authors.lastname: Godinho
authors.forename: Eduardo Daura
authors.initials: ED
authors.lastname: Ferreira
authors.forename: Vanessa
authors.initials: V
authors.lastname: Almeida
authors.forename: Artur
authors.initials: A
authors.lastname: Schuh
authors.forename: Jeffrey
authors.initials: J
authors.lastname: Kaye
authors.forename: Márcia Lorena Fagundes
authors.initials: ML
authors.lastname: Chaves
mesh_terms: D000368:Aged; D000544:Alzheimer Disease / Q000145:classification / Q000175:diagnosis; D001938:Brazil; D003704:Dementia / Q000145:classification / Q000175:diagnosis*; D005260:Female; D006801:Humans; D008297:Male; D009483:Neuropsychological Tests; D011569:Psychiatric Status Rating Scales; D011594:Psychometrics; D015203:Reproducibility of Results; D014175:Translating