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. Author manuscript; available in PMC: 2015 Aug 1.

Published in final edited form as: Cortex. 2014 Apr 30;57:167–176. doi: 10.1016/j.cortex.2014.04.006

Table 1.

Demographic Characteristics

	APOE4 carriers n = 20	APOE4 noncarriers n = 26	p-value

	Mean ± SD	Mean ± SD
Gender, female/male	14/6	17/9	NS
Age, year	52.4 ± 5.6	54.5 ± 5.8	0.21
Education, year	15.0 ± 2.4	15.6 ± 2.5	0.86
RAVLT total learn	49.5 ± 6.2	59.7 ± 7.6	0.15
RAVLT-DR	12.1 ± 2.2	13.1 ± 1.9	0.10
Digital Span	16.6 ± 3.6	18.5 ± 3.4	0.07
Trail-making test
A	24.2 ± 8.3	23.5 ± 8.7	0.81
B	56.0 ± 19.4	50.2 ± 18.7	0.31

NS: no significant difference by χ² test between groups, RAVLT: Rey Auditory Verbal Learning Test, DR: delayed recall.