Table 6 Baseline low beta band multivariate analyses according to ROI.

From: EEG theta and beta bands as brain oscillations for different knee osteoarthritis phenotypes according to disease severity

Variables

Beta-coefficient

95% CI

p-value

R2

Frontal region

   

0.271

WOMAC pain scale

0.006

0.002 to 0.010

0.006

 

Upper limb PPT

0.011

0.003 to 0.012

0.005

 

SF-36 emotion subscale

0.0004

0.00008 to 0.0007

0.014

 

Kellgren–Lawrence scale

0.013

0.0007 to 0.025

0.038

 

Bilateral affectation

0.008

− 0.012 to 0.029

0.417

 

Central region

   

0.284

SF-36 emotion subscale

0.0006

0.0002 to 0.0009

0.001

 

Kellgren–Lawrence scale

0.014

0.0007 to 0.028

0.039

 

Upper limb PPT

0.007

− 0.0009 to 0.016

0.079

 

WOMAC pain scale

0.005

0.0007 to 0.010

0.023

 

Bilateral affectation

0.017

− 0.006 to 0.040

0.138

 

Parietal region

   

0.186

Berg balance scale

0.003

0.0007 to 0.005

0.001

 

Kellgren–Lawrence scale

0.026

0.009 to 0.044

0.003

 

Bilateral affectation

0.018

− 0.008 to 0.044

0.169