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A and B: From RA patients; synovial fluid C5a levels correlate to both DAS28 and plasma CRP (r values of respectively 0.5122 (p = 0.0075) and 0.6881 (p < 0.0001). C and D: From PsA patients; synovial fluid C5a levels correlate to DAS28 and plasma CRP (r value = 0.7727 (p = 0.0053), but not to CRP. Statistical analysis was with Spearman’s Rank correlation test.
