A Comparison of Family History of Psychiatric Disorders Among Patients With Early- and Late-Onset Alzheimer’s Disease

Abstract

The authors found preliminary evidence of a higher prevalence of a history of psychiatric symptoms among relatives of EOAD patients when compared to LOAD patients. This may be due to differential misclassification of AD, a syndromic disorder with both noncognitive psychiatric and cognitive deficits in relatives of EOAD patients. Alternatively, shared genetic or other familial etiologies may underlie subtypes of EOAD and some psychiatric disorders.