Table 2. Demographic and clinical data.

	Controls n = 20	MCI n = 15	Alzheimer n = 28
Age in years (SD)	71.65 (7.04)	70.87 (9.71)	74.86 (6.97)
Sex (Female:Male)	11∶9	7∶8	15∶13
Years of education (SD)	9.1 (4.36)	7.07 (3.39)	6.79 (4.07)
MMSE (SD)	27.55 (2.09)	26.20 (1.97)	20.61 (4.08)*

ANOVA of group differences (p<0.0001). Significant differences were found between the Alzheimer group and the controls, and between the Alzheimer group and the MCI group. MMSE, Mini Mental State Examination; SD, standard deviation.