Table 1.
Participant Demographics and Test Results
| Control | aMCI | AD | |
|---|---|---|---|
| N | 98 | 29 | 26a |
| Visit Number (Mdn) | 4.0 | 4.0 | 4.0 |
| Age | |||
| M (S. D.) | 71.5 (7.8) | 76.1 (6.4) | 80.6 (6.6) |
| Education | |||
| M (S. D.) | 16.5 (2.4) | 14.7 (2.5) | 14.7 (2.9) |
| Sex | |||
| Male (n) | 32 | 13 | 15 |
| Female (n) | 66 | 16 | 11 |
| Race | |||
| Caucasian (n) | 81 | 24 | 23 |
| Black/AA (n) | 17 | 5 | 3 |
| CDR Global Score | |||
| 0.0 (n) | 97 | 12 | 0 |
| 0.5 (n) | 1 | 17 | 5 |
| 1.0 (n) | 0 | 0 | 13 |
| 2.0 (n) | 0 | 0 | 8 |
| MMSE | |||
| M (S. D.) | 29.6 (0.6) | 28.0 (1.9) | 23.1 (4.6) |
| NAB List Learning T-Scores | |||
| List A Immediate Recall | 52.3 (9.0) | 40.4 (10.9) | 30.2 (10.0) |
| List B Immediate Recall | 51.4 (7.6) | 44.3 (8.8) | 39.7 (8.8) |
| List A Short Delay Recall | 53.1 (8.5) | 38.8 (10.7) | 28.0 (7.4) |
| List A Long Delay Recall | 53.2 (9.2) | 38.9 (11.5) | 31.0 (6.2) |
Note. aMCI = Amnestic mild cognitive impairment; AD = Alzheimer’s disease; AA = African American; CDR = Clinical Dementia Rating; MMSE = Mini-Mental Status Examination; NAB = Neuropsychological Assessment Battery.
a
Possible AD: n = 6; Probable AD: n = 20.