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. 2022 Apr 26;34:103022. doi: 10.1016/j.nicl.2022.103022

Table 4.

Free-Water Imaging in White Matter Tracts.

Tract of Interest P-value FDR corrected P-value uncorrected F Partial Eta Squared
Free-water (FW)
M1 TCATT 0.121 0.089 2.253 0.080
PMd TCATT 0.028b,c,d,e 0.013 3.812 0.128
PMv TCATT 0.116 0.073 2.411 0.085
preSMA TCATT 0.028b.c.d 0.011 3.937 0.132
SMA TCATT 0.028b,c,d,e 0.005 4.598 0.150
S1 TCATT 0.116 0.075 2.393 0.084
M1 SMATT 0.121 0.114 2.047 0.073
PMd SMATT 0.028b,c 0.011 3.942 0.132
PMv SMATT 0.121 0.107 2.103 0.075
preSMA SMATT 0.028b,d 0.012 3.909 0.131
SMA SMATT 0.028b,c,d,e 0.002 5.235 0.168
S1 SMATT 0.121 0.103 2.133 0.076
Nigrostriatal 0.028d,e,f 0.009 4.124 0.137
Corticostriatal 0.116 0.075 2.388 0.084
STN to GP 0.028d,e,f 0.010 4.072 0.135
MCP 0.121 0.099 2.165 0.077
SCP 0.172 0.172 1.707 0.062
Free-water corrected Fractional Anisotropy (FAt)
M1 TCATT 0.654 0.087 2.271 0.080
PMd TCATT 0.654 0.172 1.711 0.062
PMv TCATT 0.654 0.407 0.979 0.036
preSMA TCATT 0.654 0.220 1.503 0.055
SMA TCATT 0.654 0.028 3.198 0.110
S1 TCATT 0.654 0.260 1.363 0.050
M1 SMATT 0.654 0.477 0.838 0.031
PMd SMATT 0.710 0.710 0.462 0.017
PMv SMATT 0.654 0.443 0.904 0.034
preSMA SMATT 0.654 0.579 0.660 0.025
SMA SMATT 0.654 0.316 1.198 0.044
S1 SMATT 0.654 0.315 1.200 0.044
Nigrostriatal 0.654 0.036 3.001 0.103
Corticostriatal 0.654 0.521 0.759 0.028
STN to GP 0.654 0.072 2.421 0.085
MCP 0.654 0.233 1.456 0.053
SCP 0.654 0.125 1.974 0.071

ANOVA results for main effect of group with age, sex, and site covariates.

Bold type indicates statistically significant values. Superscripts indicate significant post-hoc comparisons (P < 0.05, FDR-corrected).

TCATT: trans callosal tractography template, SMATT: sensorimotor area tract template, M1: Primary motor cortex, PMd: dorsal Premotor area, PMv: ventral Premotor area, SMA: supplementary motor area, S1: Primary sensory cortex, STN: subthalamic nucleus, GP: globus pallidus, MCP: middle cerebellar peduncle, SCP: superior cerebellar peduncle.

aPD vs. Controls.

bMSAp vs. Controls.

cMSAp vs. PD.

dPSP vs. Controls.

ePSP vs. PD.

fMSAp vs. PSP.