Table 1.
Participant characteristics
| CU amyloid-β− | (n = 217) | CU amyloid-β+ | (n = 79) | MCI amyloid-β+ | (n = 87) | Total | (n = 383) | |
|---|---|---|---|---|---|---|---|---|
| Age, years | 66.9 (10.1) | 71.2 (8.54) | 72.4 (6.89) | 69.0 (9.48) | ||||
| Education, years | 12.6 (3.47) | 12.7 (3.75) | 13.3 (4.82) | 12.8 (3.87) | ||||
| Sex, female | 57.1% | 50.6% | 56.3% | 55.6% | ||||
| MMSEa | 29 (1.23) | 28.9 (1.24) | 26.7 (1.91) | 28.4 (1.69) | ||||
| Delayed-Word-Recall (errors)b | 2.34 (1.64) | 3.18 (1.51) | 7.05 (2.31) | 3.58 (2.62) |
Mean values (SD) unless otherwise stated. Amyloid-β positivity was defined based on CSF amyloid-β42/40 levels. CU = cognitively unimpaired; MMSE = Mini-Mental State Examination.
a
MMSE is presented in points.
b
ADAS Delayed Word Recall is presented in number of errors.