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. 1992 Jan;42(1):115-9.
doi: 10.1212/wnl.42.1.115.

Prevalence of dementia and probable senile dementia of the Alzheimer type in the Framingham Study

D L Bachman  1 , P A Wolf, R Linn, J E Knoefel, J Cobb, A Belanger, R B D'Agostino, L R White
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Prevalence of dementia and probable senile dementia of the Alzheimer type in the Framingham Study

D L Bachman et al. Neurology. 1992 Jan.

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.

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