Table 3

Association of WOMAC pain score with anxiety and depression scores, voluntary quadriceps strength (MVC), quadriceps activation, and radiographic score. Values are adjusted for age, sex, and BMI in addition to variables shown using multiple linear regression. For bilateral variables, the worst value from either limb has been used in analysis

CoefficientStandard errortp Value
Constant4.642.11
Anxiety0.040.060.690.49
Depression0.270.073.66<0.005
MVC (kgF)−0.100.02−3.90<0.005
Activation (%)−0.030.01−3.01<0.005
Radiographic score0.150.062.500.13
Degrees of freedomSum of squaresMean squares
Regression81225.67153.21
Residual2211523.036.89
Total2292748.70
  • The model has an adjusted r 2 of 0.43.