TABLE 2.
Number of participants in each cluster‐derived group as a function of consensus diagnostic group at baseline.
| Consensus diagnosis | |||
|---|---|---|---|
| Normal cognition | Impaired‐not‐MCI | MCI | |
| Cluster‐derived group | |||
| oCN | 3081 (19.3%) | 152 (8.8%) | 232 (2.7%) |
| tCN | 5797 (36.2%) | 446 (25.7%) | 1115 (13.1%) |
| aMCI | 3937 (24.6%) | 429 (24.7%) | 2283 (26.8%) |
| mMCI‐Mild | 2354 (14.7%) | 423 (24.4%) | 2586 (30.4%) |
| mMCI‐Severe | 836 (5.2%) | 287 (16.5%) | 2297 (27.0%) |
| Total | 16,005 (100%) | 1737 (100%) | 8513 (100%) |
Abbreviations: aMCI, amnestic mild cognitive impairment; MCI; MCI, mild cognitive impairment; mMCI, mixed mild cognitive impairment; oCN, Optimal cognitively normal; tCN, Typical cognitively normal.