Table 1.

Mean demographic and psychometric data for a-MCI and na-MCI groups, collapsed over single- and multiple-domain subtypes. Standard deviations are in parentheses.

	a-MCI (n=19)	na-MCI (n=7)	Norms (n=249)
Age	71.6 (8.0)	69.6 (9.2)	71.9 (8.1)
Education	16.6(3.3)	18.7 (2.6)	15.1 (3.1)
Sex (% male)	84%	43%	37%
MMSE	27.2 (2.1)	27.7 (1.1)	28.6 (1.4)
Boston	27.4 (2.6)	23.6 (3.6)	28.0 (2.1)
FAS	39.3 (8.9)	35.5 (6.9)	43.5 (13.1)
Category (animals)	18.1 (4.9)	14.9 (5.8)	19.0 (5.1)
Rey Copy	21.2 (2.0)	21.7 (2.1)	21.7 (1.9)
Rey Immediate	14.5 (4.5)	19.1 (3.4)	19.0 (3.6)
Rey Delay	12.7 (6.7)	19.6 (2.7)	18.5 (3.5)
Rey Retention	82.3 % (32.4)	104.2% (11.9)	88.1 (14.9)
CERAD Immediate	17.8 (3.4)	21.3 (3.3)	22.4 (3.8)
CERAD Delay	2.5 (1.7)	7.0 (1.3)	7.4 (2.1)
Digit Span Forwards	6.8 (1.0)	6.1 (0.9)	6.7 (1.4)
Digit Span Backwards	4.6 (1.0)	4.6 (1.0)	5.2 (1.4)
Trails A (sec)	36.5 (15.7)	32.7 (9.4)	40.5 (13.2)
Trails B (sec)	84.8 (33.2)	81.9 (20.0)	87.0 (31.7)