Table 1 Demographic characteristics, neuropsychological evaluation, and visual assessment read amyloid positron emission tomography scores

Demographic characteristics

Amyloid-positive (n = 8)

Amyloid-negative (n = 30)

p Value

 Age, years, mean ± SD (range)

74.8 ± 4.8 (66–81)

69.8 ± 6.6 (55–83)

0.057

 Sex, female/male, n

3/5

13/17

–

 Years of education, mean ± SD (range)

13.4 ± 3.4 (8–19)

13.1 ± 3.8 (8–22)

0.679

Neuropsychological evaluation

Amyloid-positive, mean ± SD (range)

Amyloid-negative, mean ± SD (range)

 Global Clinical Dementia Rating

0.5

0.5

–

 Cornell Scale for Depression in Dementia

1.5 ± 1.3 (0–3)

3.6 ± 3.1 (0–13)

0.066

 Mini Mental State Examination (total possible score of 30)

27.0 ± 2.0 (25–30)

28.5 ± 1.2 (25–30)

0.047

 Auditory Verbal Learning Test (AVLT) total learning (total possible score of 75)

29.1 ± 4.1 (23–33)

38.1 ± 10.5 (21–62)

0.011

 AVLT long-term percentage delayed recall

45.9 ± 47.7 (0–133.3)

65.9 ± 21.9 (11.1–111.1)

0.062