Stable and Increasing Aβ Group Characteristics
| Characteristic | n | Age (y) | Education (y) | Female (%) | ApoE4 carriers (%) | Florbetapir scan interval (y) |
| Stable Aβ group | ||||||
| Normal | 14 | 75.2 (4.4) | 17.0 (3.2) | 36% | NA (0%) | 2.0 (0.0) |
| Increasing Aβ group | ||||||
| Normal | 37 | 75.3 (6.3) | 16.7 (2.3) | 62% | 41% | 2.0 (0.7) |
| EMCI | 54 | 73.1 (6.4) | 15.7 (2.7) | 41% | 63% | 2.0 (0.2) |
| Total | 91 | 74.0 (6.4) | 16.1 (2.6) | 49% | 54% | 2.0 (0.1) |
Data in parentheses are SDs.
NA = not applicable.