title: Sensitivity and specificity of the extended scale for dementia.
abstract: The Extended Scale for Dementia was introduced as a test for grading the intellectual function of patients with dementia. Its use in discriminating demented patients from nondemented control subjects has been explored. The test had a sensitivity of 93% and a specificity of 96% in patients over the age of 65 years, but the sensitivity fell to 75% in those younger than 65 years. The scale may be useful, particularly for patients over the age of 65 years, in helping to distinguish dementia from normality.
authors.affiliation: Department of Education and Research, London Psychiatric Hospital, Ontario, Canada.
authors.forename: C
authors.initials: C
authors.lastname: Lau
authors.forename: K
authors.initials: K
authors.lastname: Wands
authors.forename: H
authors.initials: H
authors.lastname: Merskey
authors.forename: M
authors.initials: M
authors.lastname: Boniferro
authors.forename: L
authors.initials: L
authors.lastname: Carriere
authors.forename: H
authors.initials: H
authors.lastname: Fox
authors.forename: V C
authors.initials: VC
authors.lastname: Hachinski
mesh_terms: D000368:Aged; D000369:Aged, 80 and over; D003704:Dementia / Q000523:psychology*; D004493:Education; D005069:Evaluation Studies as Topic; D005260:Female; D006801:Humans; D008297:Male; D008609:Mental Status Schedule; D011569:Psychiatric Status Rating Scales; D012959:Socioeconomic Factors