Table 3: Twoway ANOVA showing the interactive effects of age and sex on each of pain intensity and physical function.
Independent Variables 
Dependent Variables 
Twoway ANOVA 

df 
F 
p 

Age 
Pain intensity 
3 
2.87 
0.04^{*} 

Physical function 
3 
4.74 
< 0.001^{*} 
Sex 
Pain intensity 
1 
0.38 
0.54 

Physical function 
1 
5.84 
0.02^{*} 
Age^{*}Sex 
Pain intensity 
3 
0.06 
0.98 

Physical function 
3 
1.27 
0.29 
S.D: Standard deviation; df: Degrees of freedom for each estimate of variance; F: F ratios; p: Significance of F ratios.