Overall, 5.1% of adults aged 45 years or older were limited in any way because of difficulty remembering or periods of confusion.
The percentage of adults experiencing this limitation was highest among non-Hispanic American Indian/Alaska Native adults (9.8%) and non-Hispanic black adults (7.4%), followed by Hispanic adults (5.6%), non-Hispanic white adults (4.7%), and non-Hispanic Asian adults (4.1%).
Source: National Health Interview Survey, 2014–2016 data.