Table 1.

Demographics of participants in the Brain Health Registry. No post-secondary degree indicates that the highest level of education by participant is grammar school, high school, or some college. Post-HS degree indicates that the highest level of education is a 2 year degree, 4 year degree, master degree, doctoral degree or professional degree.

	Overall, N = 44,156^a	Completion of BHR medical module		p-value^b
		At least twice, N = 25,037^a	Only once, N = 19,119^a
Age, years	60 (51, 67)	61 (53, 68)	59 (48, 67)	<0.001
Race				<0.001
Multiple/Other	6,224 (14%)	2,788 (11%)	3,436 (18%)
Non-Latino White	37,932 (86%)	22,249 (89%)	15,683 (82%)
Gender				0.060
Female	33,305 (75%)	18,800 (75%)	14,505 (76%)
Male	10,851 (25%)	6,237 (25%)	4,614 (24%)
Education				<0.001
No post-secondary degree	9,320 (21%)	4,422 (18%)	4,898 (26%)
Post-HS degree	34,836 (79%)	20,615 (82%)	14,221 (74%)

Median (IQR); n (%).

Wilcoxon rank sum test; Pearson’s Chi-squared test.