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Numbers of subjects scanned at baseline (0 month) and follow-up (6, 12, 18, 24 and 36 months) for the Normal controls (N), Mild Cognitive Impairment (MCI) and Alzheimer's Disease (AD) subjects in the ADNI dataset.
| Scanning time | N | MCI | AD | Total |
|---|---|---|---|---|
| 0 month | 229 | 400 | 188 | 817 |
| 6 months | 208 | 346 | 159 | 713 |
| 12 months | 196 | 326 | 138 | 660 |
| 18 months | - | 286 | - | 286 |
| 24 months | 172 | 244 | 105 | 521 |
| 36 months | 147 | 170 | - | 317 |
