Table 1.

Means and standard deviations (in parenthesis) for demographics and neuropsychological test scores (z scores) for APOE4 carriers and non-carriers.

	APOE4 Carriers	Non-Carriers
Age	70.7(6.6)	70.8(7.3)
Education	17.3(2.0)	17.4(1.7)
Gender	13F/7M	18F/7M
VCI	118.8(10.0)	121.0(11.7)
Learning and Memory
CVLT-II LDFR	0.83(.78)	0.62(1.06)
RCFTLDFR	0.69 (.97)	−0.1(.83)
Attention/Executive Functioning
Trails A	0.09(1.13)	0.73(1.2)
Trails B	0.07(.64)	0.3(.7)
Language
BNT	1.1(.96)	1.1(.82)
Animals	0.01(1.04)	−0.05(.99)
Visuospatial Functioning
WAIS-IV Block Design	1.0(.81)	0.8(.84)
RCFT Copy	0.5(1.34)	−0.2(.95)

Notes: The APOE4 carriers were matched to the non-carriers on the group level for age, education, gender, and verbal comprehension (VCI). To be eligible for the study, participants had to perform largely within normal limits on a battery of neuropsychological tests (see Participants section). Data represent means with standard deviations in parenthesis. VCI = Verbal Comprehension Index; CVLT LDFR = California Verbal Learning Test Long Delay Free Recall; RCFT LDFR = Rey Complex Figure Test Long Delay Free Recall; BNT = Boston Naming Test; WAIS = Weschler Adult Intelligence Scale; For the neuropsychological tests, VCI scores are scaled scores and the remaining scores are age (and education if available) corrected z-scores.