Table 1.

Demographics and clinical characteristics

Demographics	Mean±  SD or n, %
N	1074
Age (y)	73.6±7.0	55-90 year range
Sex (# of men, %)	471, 43.7%
Education (y)	16.2±2.7	6-20 year range
APOE ɛ4 carriers (n, %)	436, 59.5%
Cluster-derived MCI diagnosis	411, 38.7%
CSF Biomarkers (n = 755)
Aβ-Ptau- (n, %)	276, 36.4%
Aβ+Ptau- (n, %)	148, 13.7%
Aβ-Ptau+(n, %)	120, 11.1%
Aβ+Ptau+(n, %)	214, 19.9%
Neuropsychological Markers
Memory	Baseline	12-month Follow-up
AVLT Trials 1-5 (words recalled)	38.9±11.3	38.7±12.4
AVLT Trials 6 &7 avg (words recalled)	6.1±3.9	6.1±4.4
Executive Function
Trails A (log-transformed seconds)	1.55±0.16	1.54±0.16
Trails B (log-transformed seconds)	1.95±0.20	1.95±0.21
Language
Animals (# correctly named)	18.8±5.4	18.7±5.7
Vegetables (# correctly named) (n = 495)	12.7±4.1	12.4±4.5