Table 4.

p-values of ANOVA for pain scales between gender, age, and BMI.

Covariates	NPRS	WOMAC	Pain	Stiffness	Functionality	QOLS
Age	0.723	0.195	0.124	0.374	0.217	0.276
Gender	0.380	0.844	0.866	0.430	0.924	0.394
BMI	0.942	0.549	0.731	0.880	0.467	0.849

For p-values > 0.05, there is no difference in changes among age, BMI, or gender.