Table 1.

Basic demographics of Knight-ADRC participants by disease status at last assessment.

	AD	ADAD	ADRD	Control	DLB	FTD	Total
Sample Size	2,717	29	1285	2,369	72	153	6,625
% Female	60.36	41.38	48.25	60.11	45.83	43.14	57.28
% APOE4+	57.94	65.22	44.35	33.47	41.18	43.36	45.64
Age at onset	72.93	58.58	71.3	.	71.46	64.69	72.25
Age at last assessment	80.18	62.3	77.39	72.45	78.97	66.72	77
Self-Reported Ethnicity [n,(%)]
African American	329 (40.5%)	.	104 (12.8%)	376 46.3%)	3 (0.4%)	.	812 (12.3%)
American Indian or Alaska Native	8 (53.3%)	.	1 (6.7%)	4 (26.7%)	2 (13.3%)	.	15 (0.2%)
Asian	8 (44.4%)	.	2 (11.1%)	8 (44.4%)	.	.	18 (0.3%)
Native Hawaiian or Other Pacific Islander	.	.	.	2 (100%)	.	.	2 (0.03%)
Non-Hispanic White	2,328 (42.0%)	28 (0.5%)	1,009 (18.2%)	1,962 (35.4%)	62 1.1%	150 (2.7%)	5,539 (83.6%)
Hispanic White	6 (37.5%)	.	5 (31.3%)	4 (25.0%)	.	1 (6.3%)	16 (0.2%)
More than one race	3 (60.0%)	.	.	2 (40.0%)	.	.	5 (0.08%)
Not-Reported	35 (16.1%)	1 (0.5%)	164 (75.2%)	11 (5.0%)	5 (2.3%)	2 (0.9%)	218 (3.3%)

AD = Alzheimer Disease; ADAD = Autosomal Dominant Alzheimer Disease; ADRD = Alzheimer Disease Related Dementia; DLB = Lewy Body Dementia; FTD = FrontoTemporal Dementia.