title: Prevalence of dementia and probable senile dementia of the Alzheimer type in the Framingham Study.
abstract: We determined the prevalence of dementia and probable senile dementia of the Alzheimer type (SDAT) for biennial Exam 17 of the Framingham cohort (1982/1983). The prevalence of dementia was 30.5/1,000 for men and 48.2/1,000 for women and increased with advancing age. Cases of probable SDAT constituted 55.6% of all dementia cases. THe prevalence of SDAT was 11.7/1,000 for men and 30.1/1,000 for women and also increased with advancing age. Prevalence of dementia and probable SDAT were greater for women than men. The female:male ratio of prevalence for cohort members 75 years of age and older was 1.8 for all cases of dementia and 2.8 for cases of probable SDAT.
authors.affiliation: Department of Neurology, Boston University School of Medicine, MA 02118.
authors.forename: D L
authors.initials: DL
authors.lastname: Bachman
authors.forename: P A
authors.initials: PA
authors.lastname: Wolf
authors.forename: R
authors.initials: R
authors.lastname: Linn
authors.forename: J E
authors.initials: JE
authors.lastname: Knoefel
authors.forename: J
authors.initials: J
authors.lastname: Cobb
authors.forename: A
authors.initials: A
authors.lastname: Belanger
authors.forename: R B
authors.initials: RB
authors.lastname: D'Agostino
authors.forename: L R
authors.initials: LR
authors.lastname: White
mesh_terms: D000328:Adult; D000367:Age Factors; D000368:Aged; D000369:Aged, 80 and over; D000544:Alzheimer Disease / Q000175:diagnosis / Q000453:epidemiology*; D015331:Cohort Studies; D003704:Dementia / Q000175:diagnosis / Q000453:epidemiology*; D005260:Female; D006801:Humans; D008297:Male; D008609:Mental Status Schedule; D008875:Middle Aged; D015995:Prevalence; D012737:Sex Factors