Fig. 3From: Decreased serum superoxide dismutase concentration has a high value for the diagnosis of periprosthetic joint infection—a single-center, retrospective studyReceiver operating characteristic (ROC) curves show the predictive value of SOD and CRP of PJI. AUC can range between 0 and 1. The closer the curve is located in the upper-left-hand corner and the larger the AUC, the better value is in the diagnosis of PJIBack to article page