From: Rubidium and potassium levels are altered in Alzheimer’s disease brain and blood but not in cerebrospinal fluid
Healthy controls (n = 30)
Alzheimer’s disease (n = 30)
p value
Age (years)
76.8 (7.6)
78.3 (9.2)
0.56
Females (%)
33.3
26.7
0.59
% APOE ε4 carriers
13.3
75.8
<0.001
Post mortem interval (hours)
38.4 (14.3)
33.9 (21.9)
0.38