Table 2.

2020 US Census Adjusted Prevalence, cases per 100 persons, (95% CI) of Clinical AD and Mild Cognitive Impairment, by Age and Race/Ethnicity using 10,342 Participants from the Chicago Health and Aging Population Sample

	Clinical AD Prevalence, cases per 100 (95% CI)	Mild Cognitive Impairment Prevalence, cases per 100 (95% CI)
All Participants
Non-Hispanic White	10.0 (9.6, 10.4)	21.1 (20.8, 21.5)
Hispanic	14.0 (12.0, 16.1)	25.9 (24.5, 27.3)
African American	18.6 (18.0, 19.1)	32.0 (31.7, 32.4)
Overall Prevalence	11.3 (10.7, 11.9)	22.7 (22.3, 23.2)
65–74 Years
Non-Hispanic White	4.3 (4.1, 4.6)	20.2 (19.9, 20.6)
Hispanic	7.0 (5.8, 8.3)	24.9 (23.5, 26.3)
African American	10.1 (9.6, 10.6)	30.9 (30.6, 31.3)
Age-Specific Prevalence	5.3 (4.9, 5.7)	21.9 (21.5, 22.4)
75–84 Years
Non-Hispanic White	11.9 (11.3, 12.4)	23.1 (22.7, 23.4)
Hispanic	18.7 (15.8, 21.5)	28.2 (26.7, 29.7)
African American	25.2 (24.5, 25.9)	34.7 (34.3, 35.1)
Age-Specific Prevalence	13.8 (13.1, 14.5)	24.6 (24.2, 25.1)
Over 85 Years
Non-Hispanic White	31.6 (30.7, 32.5)	20.7 (20.3, 21.0)
Hispanic	44.0 (39.3, 48.7)	25.5 (24.1, 26.9)
African American	54.0 (53.0, 55.0)	31.6 (31.2, 32.1)
Age-Specific Prevalence	34.6 (33.3, 35.8)	22.1 (21.6, 22.5)

NOTE: Prevalence estimates derived from a quasibinomial regression model for likelihood of probable clinical AD and mild cognitive impairment adjusting for age, race/ethnicity, gender, and education.