Table 2.

Spearman correlations of biomarkers with clinical variables

	Serum hsCRP (rs; p)	Serum CRPM (rs; p)	Serum C1M (rs; p)	Serum C3M (rs; p)
Age	−0.166; 0.428	−0.108; 0.608	−0.158; 0.450	−0.089; 0.671
BMI	0.625; 0.001	−0.066; 0.753	0.077; 0.715	0.011; 0.959
Sum K-L	0.453; 0.023	−0.0639; 0.762	0.076; 0.720	−0.072; 0.734
Sum OST	0.595; 0.002	0.320; 0.119	0.232; 0.264	0.417; 0.038
Sum JSN	0.182; 0.384	−0.174; 0.407	−0.104; 0.620	−0.114; 0.586
Sum Knee Synovitis	−0.026; 0.901	0.474; 0.017	0.126; 0.549	0.339; 0.098
Multi-Joint Synovitis	−0.284; 0.169	0.520; 0.008	−0.090; 0.670	0.344; 0.092
Sum PAS knee pain	0.048; 0.819	0.049; 0.818	0.165; 0.430	0.010; 0.961
Sum WOMAC knee pain (Q1)	−0.014; 0.947	0.132; 0.530	−0.007; 0.972	0.309; 0.134

Bolded correlations were significant (p<0.05)

K-L Kellgren-Lawrence knee grade, OST osteophyte knee score, JSN joint space narrowing knee score, PAS pain/aching/stiffness