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Table 2 Correlations between synovial fluid biomarker levels and biological disease activity indexes at baseline in 14 knees

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

0.57*

0.54*

IL-6

0.69**

ns

IL-8

ns

0.54*

MIP1-α

ns

0.67**

TNF-α

ns

ns

IL-17

ns

ns

IL-22

ns

ns

  1. Significance by Sperman's rank test: * P < 0.05; ** P < 0.01; ns, not significant.