TABLE 1.

Participant demographics.

GROUP	C	NC
N	34	53
AGE	76.3 (7.7)	74.3 (8.1)
SEX	9 Female	23 Female
MMSE SCORE*	26.7 (1.7)	28.2 (1.7)
PATIENTS W/CARDIOVASCULAR RISK/DISEASE	11	14
TOTAL GM VOLUME* (Proportion of total intracranial vol)	0.39 (0.02)	0.40 (0.03)
TOTAL WM VOLUME* (Proportion of total intracranial vol)	0.28 (0.02)	0.29 (0.03)
WMH BURDEN*	13,316 mm3	7741 mm3
PERC WMH BURDEN* (of total WM volume)	3.09% (3.4%)	1.81% (1.7%)

*Indicates measures with significant group differences. Values in parentheses represent standard deviations.