In the United States, about 81 percent of adults age 40 years and older indicated that they would want to know if they had dementia, whereas 8 percent stated that they would prefer to not know that they had dementia. This statistic shows the percentage of adults age 40 and older who would not want to know if they had dementia in the U.S. in 2021.
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AARP. (June 22, 2021). Percentage of adults age 40 and older who would not want to know if they had dementia in the U.S. in 2021 [Graph]. In ÌÇÐÄÆƽâ°æ. Retrieved July 30, 2026, from /statistics/1255262/preference-to-remain-unaware-of-dementia-adults-40-plus-us/
AARP. "Percentage of adults age 40 and older who would not want to know if they had dementia in the U.S. in 2021." Chart. June 22, 2021. ÌÇÐÄÆƽâ°æ. Accessed July 30, 2026. /statistics/1255262/preference-to-remain-unaware-of-dementia-adults-40-plus-us/
AARP. (2021). Percentage of adults age 40 and older who would not want to know if they had dementia in the U.S. in 2021. ÌÇÐÄÆƽâ°æ. ÌÇÐÄÆƽâ°æ Inc.. Accessed: July 30, 2026. /statistics/1255262/preference-to-remain-unaware-of-dementia-adults-40-plus-us/
AARP. "Percentage of Adults Age 40 and Older Who Would Not Want to Know If They Had Dementia in The U.S. in 2021." ÌÇÐÄÆƽâ°æ, ÌÇÐÄÆƽâ°æ Inc., 22 Jun 2021, /statistics/1255262/preference-to-remain-unaware-of-dementia-adults-40-plus-us/
AARP, Percentage of adults age 40 and older who would not want to know if they had dementia in the U.S. in 2021 ÌÇÐÄÆƽâ°æ, /statistics/1255262/preference-to-remain-unaware-of-dementia-adults-40-plus-us/ (last visited July 30, 2026)
Percentage of adults age 40 and older who would not want to know if they had dementia in the U.S. in 2021 [Graph], AARP, June 22, 2021. [Online]. Available: /statistics/1255262/preference-to-remain-unaware-of-dementia-adults-40-plus-us/
