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. Author manuscript; available in PMC: 2016 Jan 31.
Published in final edited form as: Neurobiol Aging. 2014 Oct 31;36(2):1097–1104. doi: 10.1016/j.neurobiolaging.2014.10.029

Table 3.

Correlation Analysis for PPMI Cohort

PPMI Free-water metrics vs.
Striatal Binding Ratios
Rho,ρ P-value,
uncorrected
FDR corrected
p-value
CL SN Free-water vs. Putamen SBR
      Control 0.19 0.17 0.53
      Parkinson’s −0.11 0.34 0.53
      Both Groups −0.23 0.01 0.05
IP SN Free-water vs. Putamen SBR
      Control 0.15 0.25 0.53
      Parkinson’s −0.11 0.33 0.53
      Both Groups −0.05 0.59 0.64
CL SN FAT vs. Putamen SBR
      Control 0.01 0.92 0.92
      Parkinson’s −0.33 0.003 0.04
      Both Groups −0.07 0.40 0.53
IP SNFAT vs. Putamen SBR
      Control −0.13 0.35 0.53
      Parkinson’s −0.09 0.45 0.54
      Both Groups −0.15 0.18 0.53