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Table 1 Demographics of the study participants

From: Association of critically short telomeres with brain and blood markers of ageing and Alzheimer’s disease in older adults

Demographics (n= 129)

Mean (SD)

 Age, years

68.84 (3.69)

 Female Sex, No. (%)

78 (60.47)

 Education, years

13.15 (3.14)

 Body Mass Index, kg/m2

26.20 (4.31)

APOE4 carriers, No. (%)

35 (27.13)

 Short telomeres (< 3 kb), %

9.86 (3.07)

Global neuroimaging outcomes (n= 127)

 Global GM volume, mm3

546,614.414 (25,805.89)

 Global glucose metabolism, SUVr (n = 88)

1.11 (0.06)

 Neocortical Amyloid load, SUVr

1.24 (0.15)

 WM kurtosis fractional anisotropy

0.35 (0.02)

 WM mean kurtosis

0.96 (0.04)

Hippocampal subfields normalized volumes (n= 125)

 CA1

0.95 (0.11)

 CA2

0.02 (0.003)

 CA3

0.05 (0.01)

 Dentate gyrus

0.41 (0.06)

 Subiculum

0.32 (0.04)

Blood-based markers (n= 122)

 NfL (pg/mL)

20.18 (7.66)

 GFAP (pg/mL)

155.54 (60.96)

 p-Tau181 (pg/mL)

1.95 (0.79)

 Ratio Aβ42/40

0.07 (0.03)

 Aβ42 (pg/mL)

10.36 (4.29)

 Aβ40 (pg/mL)

156.40 (39.71)

  1. Abbreviations: SD Standard deviation, BMI Body mass index, APOE4 Apolipoprotein E ε4, GM Gray Matter, SUVr Standardized uptake value, WM White Matter, CA Cornu Ammonis, NfL Neurofilament light chain, GFAP Glial fibrillary acidic protein, β-amyloid