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Familial Aggregation of Alzheimer's Disease and Related Disorders: A Collaborative Re-Analysis of Case-Control Studies

Open access
Van Duijn, C M, Clayton, D, Chandra, V, Fratiglioni, L, Graves, A B, Heyman, A, Jorm, A F, Kokmen, E, Kondo, K, Mortimer, J A, Rocca, W A, Shalat, S L, Soininen, H, A Hofman for the Eurodem Risk Factors Research Group·1991·International Journal of Epidemiology

Abstract

Case-control studies of Alzheimer's disease were re-analysed to examine the association of Alzheimer's disease with family history in first degree relatives of dementia, Down's syndrome and Parkinson's disease. Overall, the relative risk of Alzheimer's disease for those with at least one first degree relative with dementia was 3.5 (95% confidence interval 2.6-4.6). Stratification according to age of onset of Alzheimer's disease showed that the relative risk decreased with increasing onset age. However, among patients with an onset of disease after 80 years, there were still significantly more subjects with one or more first degree relatives with dementia as compared to controls (relative risk 2.6; 95% confidence interval 1.3-5.2). The relative risk of Alzheimer's disease was significantly lower in patients who had one first degree relative with dementia (relative risk 2.6; 95% confidence interval 2.0-3.5) as compared to those who had two or more affected relatives (relative risk 7.5; 95% confidence interval 3.3-16.7). Furthermore, the re-analysis showed a significant association between Alzheimer's disease and family history of Down's syndrome (relative risk 2.7; 95% confidence interval 1.2-5.7), which was strongest in those patients who had a positive family history of dementia. The relative risk of Alzheimer's disease for those with a positive family history of Parkinson's disease was 2.4 (95% confidence interval 1.0-5.8).

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Metadata

Authors
Van Duijn, C. M., Clayton, D., Chandra, V, Fratiglioni, L., Graves, A. B., Heyman, A., Jorm, A. F., Kokmen, E., Kondo, K., Mortimer, J. A., Rocca, W. A., Shalat, S. L., Soininen, H., & A Hofman for the Eurodem Risk Factors Research Group
Venue
International Journal of Epidemiology
Published
1991-01-01
Volume
20
Issue
Supplement 2
Pages
S13-S20
ISSN
  • 0300-5771 (ISSN-L)
  • 1464-3685
OpenAlex
W2080503418
Cited by
206
References
0
FWCI
9.02
Type
journal article
Language
en
Open access
green

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Van Duijn, C. M., Clayton, D., Chandra, V, Fratiglioni, L., Graves, A. B., Heyman, A., Jorm, A. F., Kokmen, E., Kondo, K., Mortimer, J. A., Rocca, W. A., Shalat, S. L., Soininen, H., & A Hofman for the Eurodem Risk Factors Research Group. (1991). Familial Aggregation of Alzheimer's Disease and Related Disorders: A Collaborative Re-Analysis of Case-Control Studies. International Journal of Epidemiology. https://doi.org/10.1093/ije/20.supplement_2.s13

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