Figure 5From: Inflammation associated anemia and ferritin as disease markers in SLECorrelation of serum and urine ferritin levels with inflammatory cytokine levels. Serum and urine ferritin levels determined using ELISA were correlated with inflammatory cytokine levels. Urine ferritin levels correlated with urine IL-6 (r = 0.68, P < 0.001) and serum IL-6 (r = 0.56, P < 0.0001).Back to article page