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Table 3 Correlations between inflammatory cytokines and patient characteristics

From: Profiling of inflammatory mediators in the synovial fluid related to pain in knee osteoarthritis

 AgeK-L gradeROMWOMAC
IL-1β−0.272*− 0.363**0.214− 0.317**
IL-6−0.261*− 0.291**0.219*− 0.297**
TNF-α−0.240*− 0.149−0.033− 0.119
M-CSF0.0850.123−0.033−1.00
  1. IL-1β interleukin 1β; IL-6 interleukin 6; TNF-α tumor necrosis factor α; M-CSF macrophage colony-stimulating factor; K-L grade Kellgren-Lawrence grade; ROM range of motion; WOMAC Western Ontario and McMaster Universities Osteoarthritis Index. * p < 0.05 ** p < 0.01.