Data Cart

Your data extract

0 variables
0 samples
View Cart
Ever told you had Dementia

Codes and Frequencies

Can't find the category you are looking for? Try the Detailed codes


For sample adults age 18 and older, DEMENTIAEV reports responses to the question, "Have you ever been told by a doctor or other health professional that you had ... Dementia, including Alzheimer's disease?"

The 2019 Field Representative's Manual defines Dementia as "the loss of cognitive functioning - thinking, remembering, and reasoning - and behavioral abilities to such an extent that it interferes with a person's daily life and activities."


Questionnaire design changes introduced in 2019 limit comparability with earlier years. The NHIS questionnaire was substantially redesigned in 2019 to introduce a different data collection structure and new content. For more information on changes in terminology, universes, and data collection methods beginning in 2019, please see the user note.


  • 2007: Sample adults age 18+.
  • 2019-2022: Sample adults age 18+.


  • 2007, 2019-2022