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Int J Geriatr Psychiatry. 2005 Jun;20(6):531-6.

The course of neuropsychiatric symptoms in dementia. Part II: relationships among behavioural sub-syndromes and the influence of clinical variables.

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  • 1Department of Psychiatry and Neuropsychology, University of Maastricht, The Netherlands.

Abstract

BACKGROUND:

Although several studies have mentioned associations between neuropsychiatric symptoms, there have been no prospective studies determining interrelations among behavioural sub-syndromes.

OBJECTIVES:

To investigate the influence of several clinical variables on the course of neuropsychiatric symptoms, and to determine interrelationships between the behavioural sub-syndromes.

METHODS:

One hundred and ninety-nine patients with dementia were assessed every six months for two-years, using the Neuropsychiatric Inventory (NPI) to evaluate neuropsychiatric symptoms.

RESULTS:

Age, sex, and socioeconomic status were not associated with a specific neuropsychiatric symptom. Greater cognitive impairment was related to more severe psychosis, and dementia stage influenced the course of total NPI problems. There were strong interrelations among most behavioural sub-syndromes. The sub-syndrome hyperactivity was of influence on the development of psychosis, but not vice versa. Neither was the sub-syndrome mood/apathy of influence on the course of psychosis.

CONCLUSIONS:

While different neuropsychiatric symptoms have their own specific correlates, there is a strong interrelationship between behavioural sub-syndromes. The data have implications for clinicians and the nosology of neuropsychiatric symptoms in dementia.

Copyright (c) 2005 John Wiley & Sons, Ltd

PMID:
15920706
[PubMed - indexed for MEDLINE]
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