Demographic, Clinical, and Neuropsychologic Features of MCI Subjects
| Parameter | aMCI | mdMCI | naMCI | P |
| Demographic | ||||
| Age (y) | 74.5 (8.1) | 70.3 (9.7) | 73 (9.8) | 0.41 |
| Percentage female | 9 (81.8%) | 3 (42.9%) | 3 (33.3%) | 0.07 |
| White | 10 (90.9%) | 6 (85.7%) | 9 (100%) | 0.536 |
| Education (y) | 15.0 (3.2) | 16.4 (3.5) | 16.2 (2.8) | 0.608 |
| Clinical feature | ||||
| Clinical Dementia Rating | 0.434 | |||
| 0 | 0 (0%) | 0 (0%) | 1 (11.1%) | |
| 0.5 | 8 (72.7%) | 4 (57.1%) | 7 (77.8%) | |
| 1 | 3 (27.3%) | 3 (42.9%) | 1 (11.1%) | |
| Mini-Mental State Examination | 25.5 (2.8) | 25.9 (1.1) | 27.2 (2.4) | 0.292 |
| Neuropsychiatric Inventory total score | 2.9 (2.5) | 2.3 (1.5) | 2.4 (2.7) | 0.858 |
| Neuropsychiatric Inventory severity | 4.6 (4.4) | 3.4 (2.6) | 3.7 (4.9) | 0.755 |
| Memory complaint | 11 (100%) | 7 (100%) | 7 (77.8%) | 0.115 |
| Behavior complaint | 0 (0%) | 0 (0%) | 2 (22.2%) | 0.115 |
| Parkinsonism | 0 (0%) | 0 (0%) | 2 (22.2%) | 0.115 |
| Hallucinations | 0 (0%) | 0 (0%) | 0 (0%) | |
| Neuropsychologic indices | ||||
| Logical memory | 8.5 (5) | 5.9 (2.4) | 11.7 (5.1) | 0.067 |
| Digit Span Forward | 7.7 (1.6) | 7.6 (2) | 7 (2.6) | 0.74 |
| Digit Span Backward | 6.2 (2.1) | 4.1 (0.9) | 5.1 (1.7) | 0.06 |
| Animals | 15.6 (4.3) | 13.7 (5) | 14.7 (4.4) | 0.647 |
| Trail Making Test | ||||
| Part A | 36.7 (13.5) | 44.9 (20.6) | 150.7 (317.7) | 0.429 |
| Part B | 192.5 (269.3) | 183.4 (106.4) | 373.7 (362.4) | 0.147 |
| Wechsler Adult Intelligence Scale | 40 (11.1) | 32 (11.7) | 33.2 (7.8) | 0.425 |
| Delayed Recall | 5 (4.9) | 4 (2.3) | 10.9 (5) | 0.018 |
| Boston Naming Test | 26.4 (2.7) | 22.3 (8.4) | 26.2 (3.5) | 0.625 |
| Duration of follow-up (mo) | 32.5 (14.3) | 37.3 (14.9) | 40.0 (12.0) | 0.399 |
Data in parentheses are percentages (when followed by %) or are SDs.