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Table 3 Associations between global network measures and tau-PET

From: Tau-related grey matter network breakdown across the Alzheimer’s disease continuum

Network property

Whole sample

Control

Preclinical AD

Prodromal AD

AD dementia

Network size

− 0.25 (0.03)***

0.14 (0.26)

− 0.22 (0.18)

− 0.17 (0.10)

− 0.08 (0.06)

Degree

− 0.38 (0.06)***

− 0.37 (0.46)

− 0.22 (0.31)

− 0.36 (0.17)

− 0.26 (0.10)*

Connectivity density

− 0.42 (0.13)**

− 1.03 (0.97)

− 0.04 (0.66)

− 0.48 (0.35)

− 0.42 (0.21)

Clustering coefficient

− 0.57 (0.05)***

− 0.24 (0.38)

− 0.58 (0.26)*

− 0.26 (0.14)

− 0.34 (0.08)***

Path length

− 0.87 (0.08)***

− 0.25 (0.62)

− 1.04 (0.42)*

− 0.65 (0.23)**

− 0.47 (0.14)**

Gamma

− 1.11 (0.09)***

− 0.23 (0.71)

− 0.79 (0.48)

− 0.65 (0.25)*

− 0.72 (0.16)***

Lambda

− 0.98 (0.09)***

− 0.29 (0.69)

− 1.15 (0.47)*

− 0.72 (0.25)**

− 0.53 (0.15)**

Small world coefficient

− 0.12 (0.10)***

− 0.21 (0.73)

− 0.70 (0.49)

− 0.63 (0.27)*

− 0.75 (0.16)***

  1. Data are presented as β (SE); Network measures are Z trasformed; gamma is normalised clustering; lambda is normalised path length; SUVr values in temporal meta-ROI; Model is adjusted for age, sex, TIV, and connectivity density (clustering, path length, γ, λ, small world-only). *p < 0.05, **p <0.01, ***p < 0.001, FDR corrected.