Table 1.
Subject demographics
| Controls (n = 28) | MCI (n = 33) | P < | |
| Age, year (M ± SD) | 66.6 ± 5.1 | 69.6 ± 7.6 | 0.08 |
| Gender (F/M) | 16/12 | 13/20 | N/A |
| Education, year (M ± SD) | 11.9 ± 5.9 | 11.2 ± 6.3 | 0.3 |
| MMSE (M ± SD) | 28.4 ± 1.3 | 26.6 ± 2.5 | 0.001 |
| CDR (sum of boxes) | 0 | 0.5 | N/A |
| Immediate recall (M ± SD) | 14.3 ± 2.8 | 9.9 ± 2.2 | 10–11 |
| Delayed recall (M ± SD) | 12.9 ± 2.9 | 6.3 ± 3.1 | 10–12 |
| APOE (ϵ4/non-ϵ4) | 4/24 | 17/16 | N/A |
Note: M ± SD (mean ± standard deviation). F (females) and M (males). MMSE: Mini Mental State Exam, where the range from best to worst performance is 30–0. CDR: clinical dementia rating, where CDR = 0 no dementia, CDR = 0.5 questionable or very mild dementia. N/A (not applicable).