From: Synovial effusion and synovial fluid biomarkers in psoriatic arthritis to assess intraarticular tumor necrosis factor-α blockade in the knee joint
Spearman's rank correlation coefficients
CRP
ESR
IL-1β
0.61*
0.57*
IL-1Ra
0.54*
IL-6
0.69**
ns
IL-8
MIP1-α
0.67**
TNF-α
IL-17
IL-22