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Dementia Risk Remains Uneven Even After Age 90, Study Finds
A prospective cohort study of more than 800 adults aged 90 and older found that dementia incidence remained associated with sex, race, ethnicity and APOE genotype. Women had roughly twice the risk of men, while APOE2 carriers had a 60% lower risk; some people with established risk factors remained cognitively healthy.
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