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Table 2 Associations between cortical diffusivity measures and AD neuropathology

From: In vivo cortical diffusion imaging relates to Alzheimer’s disease neuropathology

 

Cortical neuropathology

 

Thal phase (A)

Braak stage (B)

CERAD (C)

ABC

AngleR

ρ= 0.403; p= 0.013 pFDR= 0.041*

ρ= 0.342; p= 0.038 pFDR= n.s

ρ= 0.314; p= n.s pFDR= n.s

ρ= 0.330; p= 0.046 pFDR= n.s

PerpPD+

ρ= 0.247; p= n.s  pFDR= n.s

ρ= 0.501; p= 0.002 pFDR= 0.032*

ρ= 0.186; p= n.s pFDR= n.s

ρ= 0.438; p= 0.007 pFDR= 0.037*

ParlPD

ρ= 0.099; p= n.s pFDR= n.s

ρ= 0.426; p= 0.009 pFDR= 0.036*

ρ= -0.028; p= n.s pFDR= n.s

ρ= 0.299; p= n.s pFDR= n.s

MD

ρ= 0.201; p= n.s  pFDR= n.s

ρ= 0.448; p= 0.005 pFDR= 0.040*

ρ= 0.094; p= n.s pFDR= n.s

ρ= 0.357; p= 0.030 pFDR= n.s

 

Non-Cortical neuropathology

 

WMr

ACW

LCh

CAA

AngleR

ρ= -0.130; p=n.s       pFDR= n.s

ρ= 0.998; p= n.s       pFDR= n.s

ρ= 0.450; p= 0.008    pFDR= 0.042*

ρ= 0.215; p= n.s    pFDR= n.s

PerpPD+

ρ= 0.069; p= n.s       pFDR= n.s

ρ= 0.226; p= n.s       pFDR= n.s

ρ= 0.512; p= 0.002    pFDR= 0.024*

ρ= 0.265; p= n.s    pFDR= n.s

ParlPD

ρ= 0.132; p= n.s       pFDR= n.s

ρ= 0.337; p= n.s       pFDR= n.s

ρ= 0.440; p= 0.009    pFDR= 0.036*

ρ= 0.200; p= n.s    pFDR= n.s

MD

ρ= 0.081; p= n.s       pFDR= n.s

ρ= 0.176; p= n.s       pFDR= n.s

ρ= 0.491; p= 0.003 pFDR= 0.032*

ρ= 0.190; p= n.s    pFDR= n.s

  1. ρ Spearman's rank partial correlation coefficient; p p value; pFDR Benjamini-Hochberg Adjusted p value. WMr white matter rarefaction; ACW atherosclerosis of the circle of Willis; LCh locus coeruleus hypopigmentation; CAA cerebral amyloid angiopathy
  2. *Statistically significant difference after FDR correction