Table 1.

Participant characteristics

	Controls	MCI	AD
n	10	9	10
Age, y	71.5 ± 2.9	73.9 ± 7.3	77.6 ± 8.0
Education, y	14.9 ± 3.0	18.4 ± 2.4*	13.0 ± 3.1
M/F	4/6	5/4	3/7
APOE ε4 carriers, n (%)	2 (22)†	4 (44)	7 (70)
CDR sum-of-boxes	0 ± 0	0.94 ± 0.53†	‡
MMSE	29.7 ± 0.5	29.6 ± 0.5†	21.1 ± 3.1§
CVLT total learning score	46.9 ± 8.4	50.1 ± 12.4†	‡
CVLT delayed free recall	10.2 ± 3.5	10.8 ± 4.3†	‡
Post-scan memory¶	87.1 ± 12.5%	84.9 ± 6.6%	65.7 ± 11.6%§

Values represent mean ± SD.

^†Data not available for one subject in this group.

^‡Data not collected for this group.

^*p < 0.05.

^§p < 0.005.

^¶Post-scan recognition memory test performance, % correct.

MCI = mild cognitive impairment; AD = Alzheimer disease; CDR = Clinical Dementia Rating; MMSE = Mini-Mental State Examination; CVLT = California Verbal Learning Test.