Demographic | Amyloid-positive | Amyloid-negative |
---|---|---|
Total number of subjects | 63 | 57 |
Tauopathy* | ||
Positive | 36 | 7 |
Negative | 27 | 50 |
Age (y) | 74.36 ± 7.95 | 69.67 ± 7.71 |
Sex | ||
Male | 25 | 24 |
Female | 33 | 31 |
Formal education (y) | 15.97 ± 2.55 | 15.85 ± 2.19 |
Apolipoprotein E-ε4 | ||
Non-carrier of ε4 alleles | 24 | 44 |
ε4/ε* | 27 | 10 |
ε4/ε4 | 7 | 1 |
Mini-Mental State Examination† (37) | 28.10 ± 2.83 (range, 18–30) | 29.38 ± 1.01 (range, 25–30) |
Clinical Dementia Rating (36) | ||
0 (not demented) | 40 | 53 |
0.5 (uncertain or very mild dementia) | 14 | 2 |
1 (mild dementia) | 4 | 0 |
Amyloid–tau scan interval (d) | 63.17 ± 67.86 | 63.93 ± 60.84 |
*Apolipoprotein E-ε4 (ApoE4) carriers represented as number of ε4 alleles where ε4/ε* stands for heterozygotes.
↵†Scores range from 30 (best) to 0 (worst).
Qualitative data are number; continuous data are mean ± SD. Of subjects used in study, 5 amyloid-positive and 2 amyloid-negative were missing demographic data and not included in table.