Correlation between serum miR-155 level and clinically related indicators before treatment. (A) miR-155 was positively correlated with β2-MG before treatment (r=0.6547, P<0.001). (B) Before treatment, miR-155 was positively correlated with Cr (r=0.6551, P<0.001). (C) Before treatment, miR-155 was positively correlated with BUN (r=0.6696, P<0.001). (D) Before treatment, miR-155 was positively correlated with PTH (r=0.5280, P<0.001). (E) Before treatment, miR-155 was positively correlated with CRP (r=0.4997, P<0.001). (F) Before treatment, miR-155 was positively correlated with IL-6 (r=0.5942, P<0.001).