Table 3: Percentage of variability of walking attributed to pain, BMI, and covariates and expected change in walking for each one standard deviation increase in pain, BMI, and continuous covariates.

Partial R-square (%) Standardized Beta* Knee pain (0–100) 2.9 −0.08 BMI (continuous) 9.7 −0.28 Age 8.4 −0.28 Sex 0.3 Living situation 0.1 Education 0.0 Race 0.0 Site 2.1 Radiographic Knee Ostearthritis 0.2 Pain in the hip, ankle, or foot 0.0 Comorbidity 2.4 Depressive Symptoms 0.7 Isokinetic knee extensor strength 1.6 0.17

*Calculated for continuous variables only.