Table 1.

Demographic data for our cohort. (a) Data are represented as Mean ± S.E or as number of cases overall.

	HC	MCI	AD
Age at baseline	69 ± 6	75 ± 6	76 ± 7
Gender (M/F) at 18 months	234/325	22/17	23/44
Site (Mel/Per) at 18 months	327/232	22/17	47/20
APOE ε4 carrier (y/n) at 18 m	146/413	17/22	47/20
n at 18 months /54 months	559/528	39/51	67/86