Table 2 Characteristics at baseline, clinical cognitive profile and MRI findings at 1 year in stroke survivors by PET or no PET at 7 years
| Â | PET | NO PET | P value |
|---|---|---|---|
N | 26 | 85 | Â |
Male (%) | 18 (69) | 43 (51) | 0.227 |
Mean age, years (SD) | 72.9 (7.0) | 75.9 (11.8) | 0.239 |
Less than 9 years of education (%) | 4 (15) | 18 (21) | 0.776 |
Living alone (%) | 4 (15) | 24 (28) | 0.288 |
Stroke subtype (%) | Â | Â | 0.926 |
 Cerebral infarction | 20 (77) | 66 (78) |  |
 TIA | 4 (15) | 11 (13) |  |
 Cerebral hemorrhage | 2 (8) | 8 (9) |  |
TOAST classification (%) | Â | Â | 0.724 |
 Large-vessel disease | 2 (8) | 12 (14) |  |
 Cardio-embolic disease | 8 (31) | 19 (22) |  |
 Small-vessel disease | 9 (35) | 29 (34) |  |
 Stroke of undetermined etiology | 7 (27) | 25 (30) |  |
Assessments. Mean (SD) (n) | |||
 NIHSS | 1.12 (2.1) (26) | 1.99 (3.6) (85) | 0.247 |
 mRS | 1.0 (1.2) (26) | 1.26 (1.2) (85) | 0.266 |
 IQCODE | 3.0 (0.1) (26) | 3.1 (0.2) (85) | 0.641 |
 MMSE | 27.8 (2.1) (26) | 26.5 (4.0) (82) | 0.113 |
Clinical profile 12 months | |||
 Dementia | 1 (26) | 13 (84) | 0.223 |
 MCI | 6 (26) | 31 (84) | 0.286 |
 Normal cognition | 19 (26) | 40 (84) | 0.040 |
MRI 12 months. Mean (SD) (n) | |||
 MTLA grade | 0.79 (0.8) (24) | 1.18 (1.2) (77) | 0.135 |
 Fazekas score | 1.52 (0.8) (25) | 1.86 (0.9) (76) | 0.095 |
 Global Cortical Atrophy | 1.28 (0.7) (25) | 1.48 (0.6) (75) | 0.177 |
 CSF (Aβ)-42 (ng/L) 12 months (n) | 840 (250) (13) | 861 (302) (41) | 0.824 |
 CSF total tau (ng/L) 12 months (n) | 270 (101) (13) | 387 (192) (41) | 0.040 |