. Author manuscript; available in PMC: 2016 Nov 2.

Published in final edited form as: J Alzheimers Dis. 2016 Feb 9;52(1):77–90. doi: 10.3233/JAD-150855

Table 1A.

Sample description: Wayfinding

	CN Biomarker−	CN Biomarker+	Symptomatic AD
N	42	12	15
Age, years (mean/std)⁺	69/9	73/9	77/10
Age Range (years)	50–84	54–84	55–90
Gender (M/F)	19/23	5/7	9/6
Education, years (mean/std)	16/2	17/2	16/3
Education Range (years)	12–20	12–20	12–20
Health Composite (mean/std)	0.86/1.05	0.92/0.67	1.53/1.30
Computer Experience Composite (mean/std)	7.38/3.16	6.95/3.51	6.47/3.85
Visuomotor Time: Wayfinding (mean/std)^*	53.00/3.40	55.50/3.23	55.13/5.60
Selective Reminding Task (mean/std)^{+^}	34.90/4.59	32.25/8.08	20.08/8.49

Indicates significant difference between CN biomarker− and CN biomarker+ individuals at p < 0.05.

⁺

Indicates significant difference between CN biomarker− and early-stage symptomatic AD individuals at p < 0.05.

^{^}

Indicates significant differences between CN biomarker+ and symptomatic AD individuals at p < 0.05.

CN, clinically normal; AD, Alzheimer's disease.