Table 1.

Sample demographics.

	Cognitively normal
	older individuals	AD	p
Age (±SD)	76.47 (±4.14)	79.29 (±4.45)	ns
[range]	[71–86]	[72–86]
Sex ratio (women/men)	10/5	10/7	ns
Years of schooling (±SD)	12.33 (±2.94)	9.67 (±3.39)	∗
Beck Depression Inventory (±SD)	3.40 (±3.72)	4.82 (±5.51)	ns
STAI	33.47 (±8.60)	33.35 (±8.33)	ns
MMSE (±SD)	28.80 (±1.21)	22.82 (±2.83)	∗∗∗
MDRS (±SD)	140.47 (±3.62)	118.69 (±8.89)	∗∗∗

SD = standard deviation. Mann–Whitney U test significance = ^∗p < 0.05; ^∗∗p < 0.01; ^∗∗∗p < 0.001; ns = non-significant.