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Validity of family history for the diagnosis of dementia among siblings of patients with late-onset Alzheimer's disease

โœ Scribed by G. Devi; K. Marder; P.W. Schofield; M.X. Tang; Y. Stern; R. Mayeux


Publisher
John Wiley and Sons
Year
1998
Tongue
English
Weight
31 KB
Volume
15
Category
Article
ISSN
0741-0395

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โœฆ Synopsis


We examined 180 siblings of 127 probands with probable or possible Alzheimer's dementia (AD) in a family study of AD. The overall sensitivity of a simple family history questionnaire was 64% and the specificity was 84%. Sensitivity improved 90-100% with minimal decline in specificity when we considered clinic-based vs. population survey patients. Higher education among informants and the availability of a spouse or a sibling as informant significantly increased sensitivity. Awareness of such factors may improve the yield of the family history in AD using a simple questionnaire.


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