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Table 1 Characteristics of the groups

From: Aβ43 in human Alzheimer’s disease: effects of active Aβ42 immunization

  AD iAD p
N 21 16  
Sex (% male) 48 56 0.60a
Duration Dementia (years, mean ± sd) 8.5 ± 3.3 11.9 ± 4.5 0.02b
n/a: n = 4   
APOE genotype 2,2 or 2,3: 15% 2,2 or 2,3: 0% 0.45a
3,3: 15% 3,3: 25%  
3,4: 55% 3,4: 50%  
4,4: 15% 4,4: 25%  
n/a: n = 1 n/a: n = 4  
Age at death (years, mean ± sd) 78.0 ± 7.5 79.2 ± 8.4 0.64b
Survival time after immunization (months, mean ± sd) N.A. 91.9 ± 57.7  
  1. Abbreviations: AD Alzheimer’s disease patients, iAD immunized Alzheimer’s disease patients, amyloid-β, N.A not applicable. n/a: not available.
  2. Analysed by aPearsons’ chi-square and bt-test.