Table 6.
APOE4 allele count by amyloid status and age group.
| Amyloid | <70 years | 70–80 years | 81–90 years | |
|---|---|---|---|---|
| ADNI2 | ||||
| APOE4 = 0 | Negative% (n) | 81.8 (81) | 71.8 (102) | 53.8 (21) |
| Positive | 18.2 (18) | 28.2 (40) | 46.2 (18) | |
| APOE4 = 1 | Negative% (n) | 50.8 (33) | 33.9 (20) | 15.4 (2) |
| Positive | 49.2 (32) | 66.1 (39) | 84.6 (11) | |
| APOE4 = 2 | Negative% (n) | 36.4 (4) | 25.0 (1) | 0.0 (0) |
| Positive | 63.6 (7) | 75.0 (3) | 100.0 (4) | |
| AIBL | ||||
| APOE4 = 0 | Negative% (n) | 89.5 (34) | 77.6 (52) | 60.0 (15) |
| Positive | 10.5 (4) | 22.4 (15) | 40.0 (10) | |
| APOE4 = 1 | Negative% (n) | 64.7 (11) | 25.0 (6) | 15.4 (2) |
| Positive | 35.3 (6) | 75.0 (18) | 84.6 (11) | |
| APOE4 = 2 | Negative% (n) | 0.0 (0) | 0.0 (0) | 0.0 (0) |
| Positive | 100.0 (1) | 100.0 (5) | 100.0 (3) | |