title: Screening for dementia: a preliminary study on the validity of the Chinese version of the Blessed-Roth Dementia Scale.
abstract: Blessed-Roth Dementia Scale has been one of the most widely used rating scales in dementia. Previous studies indicated that this behavioral assessment scale is a useful tool for differentiating elderly subjects with no or minimal intellectual decline from those with cognitive deterioration. In the present study, the authors examined the validity of the Chinese version of the Blessed-Roth Dementia Scale (CDS) in Hong Kong. A total of 106 Chinese subjects were recruited from a social center, an old-age home, and psychogeriatric outpatient clinics. At a cutoff score of 3 of 4, the CDS achieved a sensitivity of 90.5% and specificity of 98.1% in differentiating demented from healthy control subjects. In the Chinese population studied, the scale was readily acceptable and considered to be an useful adjunct in screening of dementia.
authors.affiliation: Department of Psychiatry, Chinese University of Hong Kong, Prince of Wales Hospital, Shatin, Hong Kong.
authors.forename: L C
authors.initials: LC
authors.lastname: Lam
authors.forename: H F
authors.initials: HF
authors.lastname: Chiu
authors.forename: S W
authors.initials: SW
authors.lastname: Li
authors.forename: W F
authors.initials: WF
authors.lastname: Chan
authors.forename: C K
authors.initials: CK
authors.lastname: Chan
authors.forename: M
authors.initials: M
authors.lastname: Wong
authors.forename: K O
authors.initials: KO
authors.lastname: Ng
mesh_terms: D000368:Aged; D016022:Case-Control Studies; D002681:China / Q000208:ethnology; D003704:Dementia / Q000208:ethnology / Q000517:prevention & control*; D005260:Female; D015577:Geriatric Assessment; D006723:Hong Kong; D006801:Humans; D008297:Male; D008403:Mass Screening / Q000379:methods* / Q000592:standards*; D010342:Patient Acceptance of Health Care; D015203:Reproducibility of Results; D012680:Sensitivity and Specificity; D014175:Translating