Table 1.

Demographic and Clinical characteristics of the study population

	HCS (N = 30; 15F/15M)			FS (N = 6; 3F/3 M)			SS (N = 15; 6F/9 M)			TS (N = 9; 5F/4 M)
	Mean	SD	Range	Mean	SD	Range	Mean	SD	Range	Mean	SD	Range
Age	75.6	5.6	52–98	73.3	5	60–86	70.6	6.5	52–88	77.4	6.3	56–98
MMSE	28.39	1.4	27–30	27.5	1.5	24–30	26.8	1.7	23–30	23.8	2.1	20–26
CDR	0	0	0	0.3	0.0	0–0.5	0.5	0.0	0.5–0.5	0.7	0.3	0.5–1