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Table 2 Demographic and biomarker information of the BioFINDER-2 cohort by clinical and biomarker-defined groups

From: Antibody-free measurement of cerebrospinal fluid tau phosphorylation across the Alzheimer’s disease continuum

 

CU-

(n = 236)

CU + 

(n = 73)

MCI-

(n = 44)

MCI + 

(n = 68)

AD

(n = 81)

Non-AD-

(n = 33)

Non-AD + 

(n = 28)

P-value

Age, years

60.8 (14.9)

70.7 (8.2)

68.7 (8.0)

72.4 (7.4)

73.5 (7.2)

72.6 (8.2)

74.7 (6.0)

< 0.0001*

Female, n (%)

118 (50)

31 (43)

15 (34)

35 (52)

41 (51)

9 (27)

10 (36)

0.074

Education, years a

12.7 (3.1)

12.3 (3.8)

12.2 (3.6)

12.4 (4.1)

11.8 (3.9)

10.6 (3.4)

13.8 (4.0)

0.008*

APOE-ε4 carriers, n (%) b

84 (35.6)

50 (68.5)

10 (22.7)

48 (70.6)

54 (66.7)

5 (15.2)

17 (60.7)

< 0.0001*

MMSE

28.7 (1.8)

28.6 (1.8)

27.5 (1.9)

26.7 (1.9)

19.8 (4.7)

22.7 (3.7)

21.8 (5.6)

< 0.0001*

Aß PET (SUVR)

0.62 (0.04)

0.84 (0.19)

0.63 (0.05)

0.98 (0.19)

1.08 (0.18)

0.63 (0.03)

-

< 0.0001*

Tau PET (SUVR)

1.13 (0.10)

1.29 (0.34)

1.16 (0.09)

1.44 (0.43)

2.12 (0.65)

1.18 (0.16)

1.31 (0.21)

< 0.0001*

p-Tau181 (fmol/mL)

0.94 (0.33)

1.13 (0.45)

0.97 (0.27)

1.49 (0.58)

1.76 (0.77)

1.07 (0.52)

1.17 (0.34)

< 0.0001*

p-Tau199 (fmol/mL)

0.20 (0.09)

0.26 (0.10)

0.23 (0.10)

0.30 (0.12)

0.39 (0.16)

0.25 (0.11)

0.26 (0.08)

< 0.0001*

p-Tau202 (fmol/mL)

0.06 (0.03)

0.08 (0.05)

0.07 (0.04)

0.08 (0.03)

0.10 (0.04)

0.06 (0.03)

0.07 (0.03)

< 0.0001*

p-Tau205 (fmol/mL)

0.02 (0.03)

0.04 (0.04)

0.02 (0.02)

0.05 (0.04)

0.09 (0.06)

0.02 (0.02)

0.03 (0.02)

< 0.001*

p-Tau217 (fmol/mL)

0.06 (0.04)

0.21 (0.17)

0.08 (0.06)

0.31 (0.22)

0.57 (0.32)

0.10 (0.09)

0.18 (0.08)

< 0.0001*

p-Tau231 (fmol/mL)

0.02 (0.03)

0.07 (0.11)

0.02 (0.02)

0.10 (0.14)

0.20 (0.28)

0.04 (0.05)

0.04 (0.05)

< 0.0001*

p-Tau396 (fmol/mL)

0.06 (0.11)

0.07 (0.06)

0.05 (0.04)

0.09 (0.10)

0.08 (0.06)

0.05 (0.04)

0.04 (0.02)

0.038*

  1. Data shown as mean (SD) or n (%), as appropriate. Variables were compared with a one-way ANOVA adjusted and P-values are presented. Aβ status for group definition was based on CSF Aβ levels Abbreviations: Amyloid-β, AD Alzheimer’s Disease dementia, CU- Aβ-negative cognitively unimpaired, CU + Aβ-positive cognitively unimpaired, MCI- Aβ-negative mild cognitive impairment, MCI + Aβ-positive mild cognitive impairment, MMSE Mini-Mental State Examination, Non-AD- Aβ-negative and non-AD dementia, Non-AD + Aβ-positive and non-AD dementia, SUVR Standardized uptake value ratio
  2. a Data is missing for two individuals
  3. b Data is missing for three individuals