Table 2.

At-home test characteristics per study group.

	Healthy control	Preclinical AD	Prodromal AD	p value
AR app tests at home, n (%)				0.09
0	16 (28%)	8 (30%)	15 (41%)
<3	6 (11%)	3 (11%)	8 (22%)
≥3	35 (61%)	16 (59%)	14 (38%)
Using iOS, n (%)	23 (56%)	11 (58%)	12 (54%)	0.98
Using AR app version 2, n (%)	21 (51%)	15 (79%)	19 (86%)	0.008

Numbers show n (%). P values are from χ² tests, uncorrected for any covariates.

AD Alzheimer’s disease, AR augmented reality, iOS iPhone Operating System.