Alzheimer’s disease is now recognized as a major public health problem. Many hypotheses have tried to explain the etiology of Alzheimer’s disease and, among them, genetic factors are considered one of the most plausible. A case-control study of familial factors, including sex distribution, age at onset, birth order, parental age, fertility, mortality, inbreeding and kindship, was conducted on 130 clinically diagnosed patients born in the Sague-nay-Lac-St-Jean region (Quebec, Canada). The cases were screened by the IMAGE project. Our results showed that most factors studied are not associated with Alzheimer’s disease. Inbreeding was found to be slightly increased in the Alzheimer group. Kindship was higher in the Alzheimer group than in the control groups, therefore confirming that familial predisposition is a very important risk factor.

Keywords:
Alzheimer’s disease, Genetics, Epidemiology
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© 1989 S. Karger AG, Basel
1989
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