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The relationship between depression and mortality in elderly subjects with less severe dementia

Published online by Cambridge University Press:  01 July 1999

J. G. E. JANZING ,
J. M. P. BOUWENS ,
R. J. TEUNISSE ,
M. A. VAN'T HOF  and
F. G. ZITMAN
J. G. E. JANZING
Affiliation:
From the Department of Psychiatry, University Hospital Nijmegen and Department of Medical Statistics, University of Nijmegen, The Netherlands
J. M. P. BOUWENS
Affiliation:
From the Department of Psychiatry, University Hospital Nijmegen and Department of Medical Statistics, University of Nijmegen, The Netherlands
R. J. TEUNISSE
Affiliation:
From the Department of Psychiatry, University Hospital Nijmegen and Department of Medical Statistics, University of Nijmegen, The Netherlands
M. A. VAN'T HOF
Affiliation:
From the Department of Psychiatry, University Hospital Nijmegen and Department of Medical Statistics, University of Nijmegen, The Netherlands
F. G. ZITMAN
Affiliation:
From the Department of Psychiatry, University Hospital Nijmegen and Department of Medical Statistics, University of Nijmegen, The Netherlands
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Abstract

Background. Little is known about the effects of depression on the mortality rates of elderly subjects with dementia.

Methods. Logistic regression analysis, adjusting for possible confounders, was used to study the associations between GMS-AGECAT derived syndrome and symptom measures and 12-month mortality rates in a cohort of 73 elderly subjects who met the DSM-III-R criteria of dementia with a median MMSE score of 19.

Results. Twenty-three subjects (32%) died within the 12 month follow-up period. A baseline diagnosis of syndromal or subsyndromal depression was associated with increased mortality. At the symptom level mortality was predicted by higher scores on the factor ‘mood symptoms’. The effects of interactions between depression measures and severity of dementia were not significant.

Conclusions. Short-term mortality in elderly subjects with less severe dementia is predicted by the presence of (sub) syndromal depression and by mood symptoms. The effects of depression and severity of dementia on the mortality rates seem to be largely independent.

Type
Research Article
Information
Psychological Medicine , Volume 29 , Issue 4 , July 1999 , pp. 979 - 983
Copyright
© 1999 Cambridge University Press

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