Alzheimer's disease epidemiology and demographics
Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]
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Overview
An estimated 35 million people worldwide have Alzheimer's disease.
Age
Generally it is diagnosed in people over 65 years of age,[1] although the less-prevalent early-onset Alzheimer's can occur much earlier.
| Age | Incidence (new affected) per thousand person–years |
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| 65–69 | 3 |
| 70–74 | 6 |
| 75–79 | 9 |
| 80–84 | 23 |
| 85–89 | 40 |
| 90– | 69 |