Descriptive Statistics for Study Participants
| Group | Age (y) | Sex | APOE-ε4 carriers | MMSE/MoCA | PiB(+) | Clinical disease duration (mo) |
| Young controls (n = 3) | 35 ± 9, 27–45 | 1 F, 2 M | NA | NA | NA | |
| Older controls (n = 33) | 67 ± 5, 56–77 | 20 F, 13 M | 14 | 29 ± 0.8 | 7 | |
| Cognitive decliners (n = 6) | 65 ± 2, 61–68 | 4 F, 2 M | 4 | 28 ± 1 | 3 | |
| MCI (n = 2) | 69 ± 10 | 1 F, 1 M | 2 | 26 ± 2 | 1 | 39 ± 52 |
| Probable AD (n = 7) | 73 ± 3, 67–79 | 2 F, 5 M | 2 (2 NA) | 17 ± 2 | 5 | 53 ± 35 |
| Total (n = 51) | 66 ± 10, 27–79 | 28 F, 23 M | 22 (5 NA) | 16 (3 NA) |
NA = not available.
MMSE = Mini–Mental State Examination; MoCA = Montreal Cognitive Assessment; F = females; M = males.
Data are reported as the mean ± SD and additionally with the range for age.