Research Article

Multimer Detection System-Oligomerized Amyloid Beta (MDS-OAβ): A Plasma-Based Biomarker Differentiates Alzheimer’s Disease from Other Etiologies of Dementia

Table 1

Clinical characteristics of participants.

Etiologic diagnosis value
NCI/SCI ()AD ()Non-AD ()Mixed AD-VaD ()Total ()

Age< 0.001
Age groups
≤59 years6 (42.9)1 (1.4)6 (18.8)13 (8.9)< 0.001
60-69 years2 (14.3)10 (14.1)7 (21.9)3 (10.3)22 (15.1)
70-79 years4 (28.6)28 (39.4)12 (37.5)11 (37.9)55 (37.7)
≥80 years2 (14.3)32 (45.1)7 (21.9)15 (51.7)56 (38.4)
Sex
Male7 (50.0)24 (33.3)13 (40.6)11 (37.9)55 (37.4)0.66
Female7 (50.0)48 (66.7)19 (59.4)18 (62.1)92 (62.6)
CDR stages
Normal9 (64.3)9 (6.1)< 0.001
Very mild5 (35.7)45 (62.5)20 (62.5)14 (48.3)84 (57.1)
Mild17 (23.6)7 (21.9)12 (41.4)36 (24.5)
Moderate6 (8.3)4 (12.5)2 (6.9)12 (8.2)
Severe4 (5.6)1 (3.1)1 (3.4)6 (4.1)
Total14 (100.0)72 (100.0)32 (100.0)29 (100.0)147 (100.0)
PT/C ratio< 0.001
PT/C ratio by age groups
≤59 years0.07
60-69 years
70-79 years
≥80 years

Data were presented as or frequency (percentages). NCI: no cognitive impairment; SCI: subjective cognitive impairment; AD: Alzheimer’s disease; Non-AD: non-Alzheimer’s disease; Mixed AD-VaD: mixed etiology Alzheimer’s disease with either vascular cognitive impairment, subcortical ischemic vascular dementia, or cerebrovascular disease.