BACKGROUND/AIMS: The aim of this study was to identify neuropsychiatric subsyndromes of the Neuropsychiatric Inventory in a large sample of outpatients with Alzheimer's disease (AD). METHODS: Cross-sectional data of 2,354 patients with AD from 12 centres from the European Alzheimer's Disease Consortium were collected. Principal component analysis was used for factor analysis. RESULTS: The results showed the presence of 4 neuropsychiatric subsyndromes: hyperactivity, psychosis, affective symptoms and apathy. The subsyndrome apathy was the most common, occurring in almost 65% of the patients. CONCLUSION: This large study has provided additional robust evidence for the existence of neuropsychiatric subsyndromes in AD.
Neuropsychiatric syndromes in dementia. Results from the European Alzheimer Disease Consortium: part I.
GIRTLER, NICOLA GIOVANNI;NOBILI, FLAVIO MARIANO;
2007-01-01
Abstract
BACKGROUND/AIMS: The aim of this study was to identify neuropsychiatric subsyndromes of the Neuropsychiatric Inventory in a large sample of outpatients with Alzheimer's disease (AD). METHODS: Cross-sectional data of 2,354 patients with AD from 12 centres from the European Alzheimer's Disease Consortium were collected. Principal component analysis was used for factor analysis. RESULTS: The results showed the presence of 4 neuropsychiatric subsyndromes: hyperactivity, psychosis, affective symptoms and apathy. The subsyndrome apathy was the most common, occurring in almost 65% of the patients. CONCLUSION: This large study has provided additional robust evidence for the existence of neuropsychiatric subsyndromes in AD.
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