Table 2.
Neuropathological Characteristics
| NCI | MCI | mAD | p-value | |
|---|---|---|---|---|
| Total Neuritic Plaque Count | 17.50 [0, 43] | 33 [0, 90.25] | 55.50 [3, 132.50] | 0.18 |
| Total Diffuse Plaque Count | 18 [0, 65] | 25 [0.75, 52.50] | 66 [11.50, 91] | 0.23 |
| Total Neurofibrillary Tangle Count | 17.50 [7.50, 44] | 28 [20.75, 66.50] | 44.50 [5.50, 106] | 0.28 |
| CERAD Neuropathological Diagnosis | ||||
| No AD | 9 | 4 | 3 | |
| Possible AD | 7 | 5 | 2 | 0.31 |
| Probable AD | 2 | 1 | 1 | |
| Definite AD | 2 | 3 | 6 | |
| Braak Stage | ||||
| 0 | 1 | 0 | 0 | |
| I | 2 | 1 | 2 | |
| II | 4 | 0 | 2 | 0.17 |
| III | 4 | 5 | 1 | |
| IV | 9 | 5 | 3 | |
| V | 0 | 2 | 4 | |
| NIA Reagan Diagnosis | ||||
| Not AD | 1 | 0 | 0 | 0.37 |
| Low Likelihood | 11 | 6 | 4 | |
| Intermediate Likelihood | 8 | 5 | 5 | |
| High Likelihood | 0 | 2 | 3 | |
Median [25th %ile, 75th %ile]; AD, Alzheimer’s disease; CERAD, Consortium to Establish a Registry for Alzheimer’s Disease; MCI, mild cognitive impairment; NCI, no cognitive impairment; NIA, National Institute on Aging.