Prevalence of dementia diseases
The Alzheimer Disease International (ADI) association regularly publishes up-to-date figures on the global prevalence of dementia as part of its World Alzheimer Reports. An overview of the reports can be found here: Online Version.
The information on the prevalence of dementia in Germany is based on these sources:
Deutsche Alzheimer Gesellschaft e. V. (2019): Selbsthilfe Demenz. Informationsblatt 1. Die Häufigkeit von Demenzerkrankungen. Online Version
Glaeske, G. (2020): Demenzreport 2020. Bremen. Online Version