Table 1.

Demographic and clinical information of the subjects

	AD (N = 51)	Progressive MCI (N = 43)	Stable MCI (N = 56)	CN (N = 52)
Female/male	18/33	15/28	17/39	18/34
Age (mean ± SD)	75.2 ± 7.4 [59–88]	75.7 ± 6.9 [58–88]	75.0 ± 7.1 [55–89]	75.3 ± 5.2 [62–85]
Education (mean ± SD)	14.7 ± 3.6 [4–20]	15.4 ± 2.7 [10–20]	14.9 ± 3.3 [8–20]	15.8 ± 3.2 [8–20]
MMSE (mean ± SD)	23.8 ± 2.0 [20–26]	26.9 ± 2.7 [20–30]	27.0 ± 3.2 [18–30]	29 ± 1.2 [25–30]
CDR (mean ± SD)	0.7 ± 0.3 [0.5–1]	0.5 ± 0 [0.5–0.5]	0.5 ± 0 [0.5–0.5]	0 ± 0 [0–0]

MMSE mini-mental state examination, CDR clinical dementia rating, N number of subjects, SD standard deviation [min–max]