title: Validation of the Rowland Universal Dementia Assessment Scale for multicultural screening in Danish memory clinics.
abstract: OBJECTIVE
  The Rowland Universal Dementia Assessment Scale (RUDAS) is a brief cognitive screening test that was developed to detect dementia in multicultural populations. The RUDAS has not previously been validated in multicultural populations outside of Australia. The aim of this study was to evaluate the diagnostic accuracy of the RUDAS in a multicultural sample of patients referred to Danish memory clinics.
  
  
  METHODS
  Data were collected from 137 consecutive patients (34 with an immigrant background) in three Danish memory clinics. All patients were given the RUDAS as a supplement to the standard diagnostic workup.
  
  
  RESULTS
  Diagnostic accuracy for the RUDAS [area under the curve (AUC) = 0.838] was similar to that of the Mini-Mental State Examination (MMSE; AUC = 0.840). The cutoff score with the best balance of sensitivity, specificity and accuracy was <24/30 for the RUDAS (sensitivity 0.69, specificity 0.80) and <25/30 for the MMSE (sensitivity 0.76, specificity 0.83). In contrast to the MMSE, regression analyses revealed that the RUDAS was unaffected by factors related to the patients' immigrant backgrounds.
  
  
  CONCLUSIONS
  The RUDAS showed high specificity and proved to be less affected by cultural and linguistic factors than the MMSE, making it a particularly valuable tool when screening for cognitive impairment in elderly multicultural patient populations.
authors.affiliation: Memory Disorders Research Group, Danish Dementia Research Center, Department of Neurology, Neuroscience Center, Copenhagen University Hospital, Rigshospitalet, Copenhagen, Denmark.
authors.forename: T Rune
authors.initials: TR
authors.lastname: Nielsen
authors.forename: Birgitte Bo
authors.initials: BB
authors.lastname: Andersen
authors.forename: Hanne
authors.initials: H
authors.lastname: Gottrup
authors.forename: Jan H
authors.initials: JH
authors.lastname: Lützhøft
authors.forename: Peter
authors.initials: P
authors.lastname: Høgh
authors.forename: Gunhild
authors.initials: G
authors.lastname: Waldemar
mesh_terms: D000368:Aged; D000369:Aged, 80 and over; D003430:Cross-Sectional Studies; D018864:Cultural Diversity; D003704:Dementia / Q000175:diagnosis*; D003718:Denmark; D005260:Female; D015577:Geriatric Assessment; D006801:Humans; D016015:Logistic Models; D008297:Male; D009483:Neuropsychological Tests / Q000592:standards*; D012372:ROC Curve; D012680:Sensitivity and Specificity