Table 1.

Characteristics of healthy subjects, MCI patients and patients suffering from AD

Diagnostic group	CO	MCI	AD
Sample size	30	20	30
Female/male	22 /8	21/9	11/9
Age (years)	77 ± 1.2	78 ± 1.2	79 ± 2.0
MMSE	29 ± 0.2	28 ± 0.3	20 ± 1.0 ***
GDS	3.3 + 0.5	2.6 ± 0.4	3.1 ± 0.7

Values are given as mean ± SEM

MMSE mini-mental state examination (scale 0–30), GDS geriatric depression scale (30-items version), CO healthy controls, MCI mild cognitive impairment, AD Alzheimer’s disease

Statistical analysis was performed by One Way ANOVA with a subsequent Fisher LSD posthoc test (***p < 0.001)