TABLE 1.

Diagnostic Makeup of AD and Non-AD Groups

Clinical Consensus Diagnosis	AD Group n (% of total)	Non-AD Group n (% of total)
Cognitively Healthy	—	75 (27.2%)
Without complaint	—	63
With self- or informant complaint	—	12
Ambiguous, non-MCI	—	16 (5.8%)
MCI	—	113 (40.9%)
“Possible” MCIa	—	70
“Probable” MCIb	—	43
Alzheimer’s Diseasec	65 (23.6%)	—
Possible AD	54	—
Probable AD	11	—
Other dementia etiologies	—	7 (2.5%)
Vascular Dementiad	—	1
Frontotemporal Dementiae	—	1
Dementia of unknown etiology	—	4
Total	65 (23.6%)	211 (76.4%)

AD = Alzheimer’s disease; MCI = Mild cognitive impairment.

^aMet (diagnostic criteria for MCI (Winblad et al., 2004) except for cognitive complaint.

^bWinblad et al., 2004.

^cMcKhann et al., 1984.

^dRomán et al., 1993.

^eNeary et al., 1998.