Table 1.

Sociodemographic and memory features of the 2 study groups

	APOE ε4-noncarriers	APOE ε4-carriers	P
Sociodemographics
Age, y	28.6 (±3.9)	28.4 (±4.9)	0.91
Education, y	19.5 (±1.5)	19.6 (±2.0)	0.93
Gender, male/female	10/8	11/7	1
Family history of dementia	2	2	1
Memory test, % of corrected responses
Global performance	83.8%	84.4%	0.86
Familiar images	97.8%	97.8%	1
Novel images	75.5%	75.8%	0.96
Distractors	94.6%	95.4%	0.58
Reaction time, s
Familiar blocks	0.75 (±0.14)	0.80 (±0.22)	0.44
Novel blocks	0.99 (±0.26)	1.09 (±0.42)	0.39

Values denote mean (± SD) or numbers of subjects.