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M M B Breteler, C M Van Duijn, V Chandra, L. Fratiglioni, A B Graves, A Heyman, A F Jorm, E Kokmen, K Kondo, J A Mortimer, W A Rocca, S L Shalat, H Soininen, A Hofman for the Eurodem Risk Factors Research Group, Medical History and the Risk of Alzheimer's Disease: A Collaborative Re-Analysis of Case-Control Studies, International Journal of Epidemiology, Volume 20, Issue Supplement_2, 1991, Pages S36–S42, https://doi.org/10.1093/ije/20.Supplement_2.S36
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Abstract
In a re-analysis of eight case-control studies on Alzheimer's disease we explored several medical conditions that had previously been suggested as possible risk factors for Alzheimer's disease. History of hypothyroidism was increased in cases as compared to controls (relative risk 2.3; 95% confidence interval 1.0–5.4). Severe headaches and migraine were inversely related to Alzheimer's disease (relative risk 0.7; 95% confidence interval 0.5'1.0). More cases than controls reported epilepsy before onset of AIzheimer's disease (relative risk 1.6; 95% confidence interval 0.7–;3.5), especially for epilepsy with an onset within 10 years of onset of dementia. Neurotropic viruses, allergic conditions, general anaesthesia and blood transfusions were not associated with Alzheimer's disease.