TABLE 2.
Number and percentage of participants by clinical status in each A/T group across Braak regions
| Tau Region | A/T group | Cognitively stable N (%) | MCI N (%) | Overall N (%) |
|---|---|---|---|---|
| Braak I | Aβ–/TL | 80 (68%) | 1 (17%) | 81 (66%) |
| Aβ+/TL | 35 (30%) | 1(17%) | 36 (29%) | |
| Aβ+/TH | 2 (2%) | 4 (67%) | 6 (5%) | |
| Braak II | Aβ–/TL | 80 (68%) | 1 (17%) | 81 (66%) |
| Aβ+/TL | 34 (29%) | 3 (50%) | 37 (30%) | |
| Aβ+/TH | 3 (3%) | 2 (17%) | 5 (4%) | |
| Braak III | Aβ–/TL | 80 (68%) | 1 (17%) | 81 (66%) |
| Aβ+/TL | 35 (30%) | 2 (33%) | 37 (30%) | |
| Aβ+/TH | 2 (2%) | 3 (50%) | 5 (4%) | |
| Braak IV | Aβ–/TL | 80 (68%) | 1 (17%) | 81 (66%) |
| Aβ+/TL | 36 (31%) | 1 (17%) | 37 (30%) | |
| Aβ+/TH | 1 (1%) | 4 (67%) | 5 (4%) | |
| Braak V | Aβ–/TL | 80 (68%) | 1 (17%) | 81 (66%) |
| Aβ+/TL | 37 (32%) | 2 (33%) | 39 (32%) | |
| Aβ +/ TH | 0 (0%) | 3 (50%) | 3 (2%) | |
| Braak VI | Aβ‐ / TL | 80 (68%) | 1 (17%) | 81 (66%) |
| Aβ +/ TL | 37 (32%) | 4 (67%) | 41 (33%) | |
| Aβ +/ TH | 0 (0%) | 1 (17%) | 1 (1%) |
Abbreviations: Aβ–, amyloid‐beta negative; Aβ+, amyloid‐beta positive; A/T, amyloid tau; TL, low tau; TH , high tau; MCI, mild cognitive impairment.