Table 1.

Demographics and cognitive and cerebral Aβ measures

	Total sample N = 74	Female N = 51	Male N = 23
Age	66.5 ± 5.7	66.0 ± 5.9	67.6 ± 5.1
Education years	12.5 ± 4.9	12.5 ± 5.2	12.4 ± 4.1
ApoE4 (yes/no)	16/58	11/40	6/17
CDR	0	0	0
MMSE	29.0 ± 1.2	28.9 ± 1.2	29.3 ± 1.1
Memory Binding Test
Total free recall	15.5 ± 4.4	15.8 ± 4.3	14.9 ± 4.7
Pairs in free recall	5.9 ± 2.8	6.0 ± 2.7	5.8 ± 3.0
Total paired recall	24.6 ± 4.2	24.6 ± 3.9	24.7 ± 4.8
Paired recall pairs	9.7 ± 3.7	9.7 ± 3.8	9.7 ± 3.5
Total delayed free recall	16.4 ± 4.9	16.6 ± 4.8	16.0 ± 5.1
Pairs in delayed free recall	6.3 ± 3.1	6.4 ± 3.0	6.1 ± 3.3
Total delayed paired recall	24.0 ± 4.6	23.9 ± 4.4	24.1 ± 5.2
Letter-Number Test	9.0 ± 2.3	8.8 ± 2.1	9.7 ± 2.7
Digit span	14.3 ± 3.2	14.1 ± 3.0	14.9 ± 3.4
D2 Test of Attention	364.1 ± 94.0	355.6 ± 107.0	382.8 ± 52.8
TMT-A	47.0 ± 21.5	47.6 ± 21.5	45.6 ± 22.0
TMT-B	119.5 ± 67.7	123.4 ± 69.6	110.8 ± 63.8
Tower of London	319.3 ± 113.2	338.6 ± 121.4	276.3 ± 78.8
Boston Naming Test	12.1 ± 2.1	11.9 ± 2.1	12.5 ± 1.9
Salivary LF (μg/ml)	6.2 ± 2.9	6.0 ± 2.9	6.5 ± 2.8
Saliva total protein (μg/ml)	4.1 ± 1	4.1 ± 1.1	4.2 ± 1
Global Aβ load (SUVR)	1.2 ± 0.3	1.1 ± 0.3	1.2 ± 0.3
FBB-PET (positive Aβ)	10	7	3

Results are expressed as mean ± SD, unless otherwise stated. CDR Clinical Dementia Rating, MMSE Mini Mental State Examination, TMT-A and B Trail Making test (forms A and B), LF lactoferrin, SUVR standardized uptake value ratios, FBB Florbetaben