Table 7.

Baseline high beta band multivariate analyses according to ROI.

Variables	Beta-coefficient	95% CI	p-value	R2
Frontal region				0.320
WOMAC pain scale	0.012	0.004 to 0.020	0.004
Upper limb PPT	0.017	0.005 to 0.029	0.005
Kellgren–Lawrence scale	0.039	0.018 to 0.060	< 0.001
SF-36 Physical function scale	0.002	0.0008 to 0.003	0.002
Bilateral affectation	0.012	− 0.019 to 0.044	0.435
HAD-depression scale	− 0.001	− 0.008 to 0.006	0.696
Central region				0.196
CSP average	− 0.0008	− 0.001 to − 0.0002	0.010
Kellgren–Lawrence scale	0.027	− 0.008 to 0.047	0.007
Timed Up and Go score	− 0.002	− 0.005 to − 0.00006	0.045
WOMAC stiffness scale	0.005	− 0.005 to 0.015	0.343
Parietal region				0.271
CSP average	− 0.0009	− 0.001 to − 0.0002	0.010
SF-36 physical function scale	0.0006	0.00005 to 0.001	0.034
Kellgren–Lawrence scale	0.035	0.014 to 0.055	0.001
10-m walking test score	− 0.004	− 0.007 to − 0.0003	0.034