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Table 1 Sample demographics

From: Decision tree analysis of genetic risk for clinically heterogeneous Alzheimer’s disease

Discovery AmnAD AtAD Control
N 42 17 133
Age (mean ± SD) 76.2 ± 7.9 73.3 ± 6.5 73.9 ± 6.2
% Female 42.9% 41.2% 57.1%
Education (years, mean ± SD) 16.3 ± 2.5 16.5 ± 2.9 17.3 ± 2.1
% APOE4 carrier 64.3% 41.2% 20.3%
Validation AmnAD AtAD Control
N 84 22 150
Age (mean ± SD) 80.7 ± 8.4 80.9 ± 9.3 76.8 ± 7.4
% Female 53.6% 27.3% 53.3%
Education (years, mean ± SD) 15.8 ± 3.1 16.1 ± 4.8 17.4 ± 2.1
% APOE4 carrier 49.4% 36.4% 24.0%
Global AmnAD AtAD Control
N 126 39 283
Age (mean ± SD) 79.2 ± 8.5 77.6 ± 9.0 75.4 ± 7.0
% Female 50.0% 33.3% 55.1%
Education (years, mean ± SD) 16.0 ± 2.9 16.7 ± 3.1 17.4 ± 2.1
% APOE4 carrier 55.2% 38.5% 22.3%
  1. Demographic summary of amnestic Alzheimer’s disease (AmnAD) cases, atypical AD (AtAD) cases and controls.