Table 2.

Demographic characteristic and plasma Rac1 levels in the four groups

	Controls	MCI	AD MMSE≥18	AD MMSE< 18
No. of subject	102	47	72	42
Gender (% female)	49	64	60	48
Mean age (SD), years	70 (5)	75 (6)	72 (5)	73 (6)
Rac1 (ng/ml) range, median and mean	0.10–1.82 0.38, 0.45	0.16–8.21 0.42, 0.77	0.14–6.81 0.37, 0.62	0.16–6.95 0.76, 1.00
MMSE (SD)	28 (1)	26 (2)	22 (2)	9 (6)