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Table 2 Alzheimer’s Disease Neuroimaging Initiative subject demographics a

From: Association between cell-bound blood amyloid-β(1 - 40) levels and hippocampus volume

  HC MCI AD
Number of subjects 185 307 138
Age (yr) 76.0 (5.1) 74.8 (7.4) 75.3 (7.5)
Education (yr) 16.2 (2.8) 15.8 (3.0) 14.6 (3.2)
Gender (% males) 53.0 63.2 50.7
ApoE (% ε4 allele) 26.5 53.1 65.9
Creatinine (g/L) 114.0 (73.5) 114.3 (69.5) 105.6 (62.6)
Aβ(1 - 40) (pg/ml) 151.4 (49.7) 152.0 (55.7) 152.2 (40.1)
Aβ(1 - 42) (pg/ml) 37.8 (12.2) 36.4 (11.8) 36.4 (10.0)
  1. aAD: Alzheimer’s disease; ApoE: Apolipoprotein E; Aβ: Amyloid-β; HC: Healthy control; MCI: Mild cognitive impairment. Mean value is the number reported and the standard deviation is in brackets, as applicable.