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. Author manuscript; available in PMC: 2012 Jan 15.
Published in final edited form as: Neuroimage. 2010 Sep 6;54(2):1565–1577. doi: 10.1016/j.neuroimage.2010.08.052

Table 1.

Demographics (mean ± standard deviation) and cognitive function scores for APOE ε4 allele noncarrier, heterozygote, and homozygote individuals. Mean hyperintensity ratings are based on a scale of 0 to 4.

Noncarriers Heterozygotes Homozygotes
Number of participants 88 32 6
Age (years) 71.6 ± 8.8 69.2 ± 9.7 67.0 ± 12.2
Gender (m/f) 20/68 7/25 1/5
Hypertension (%) 28% 31% 17%
Education (years) 15.5 ± 2.8 15.5 ± 2.8 15.0 ± 2.4
MMSE 28.8 ± 1.3 28.9 ± 1.5 28.7 ± 1.2
Vocabulary (raw score) 69.7 ± 6.4 68.9 ± 6.0 69.2 ± 3.4
Executive Factor (z-score) 0.03 ± 0.64 0.08 ± 0.66 0.09 ± 0.41
Memory Factor (z-score) 0.28 ± 0.63 0.19 ± 0.84 0.02 ± 1.06
Mean hyperintensity rating 1.47± 0.98 1.23± 1.02 1.58± 1.43