Fig. 4
From: Profiling of inflammatory mediators in the synovial fluid related to pain in knee osteoarthritis
Pain scores measured using different methods and correlations among the methods. a. Pain scores measured using different methods. b. Correlation coefficients between different pain scoring systems. The different colors and circle areas represent the correlation coefficient between the pain scoring systems. Correlation coefficients were calculated by the Spearman rank correlation test using two-tailed p values