TABLE 1.

Demographics characteristics of the study samples.

	Control (n = 181)	MCI (n = 58)	AD (n = 181)	ANOVA p-value
Age, years	73.5 ± 5.1	72.7 ± 5.9	74.2 ± 6.3	N.S.
Male patients	80 (44.2%)	27 (46.6%)	85 (47.0%)	N.S.
BMI	27.2 ± 4.6	26.0 ± (3.8	26.8 ± 4.5	N.S.
MMSE, points	28.8 ± 0.7	26.0 ± 2.9	16.8 ± 4.6	< 0.001
Education, years	9.4 ± 3.1	8.8 ± 2.8	9.6 ± 3.2	N.S.

Data presented as mean ± SD where appropriate. Post hoc Tukey test: MMSE: AD vs. Control, p < 0.001; AD vs. MCI, p < 0.001; MCI vs. Control, p < 0.001. N.S. not significant different. MCI, mild cognitive impairment; AD, Alzheimer’s disease; BMI, body mass index; MMSE, mini-mental status examination.