Fig. 3From: The mildly decreased preoperative bilirubin level is a risk factor for periprosthetic joint infection after total hip and knee arthroplastyThe ROC curve of direct bilirubin to predict PJI. AUC = 0.760 (95%CI: 0.651–0.870, P < 0.001), Cutoff = 4.00 µmol/L, Sensitivity = 84.62%, Specificity = 54.45%, PPV = 68.75%, NPV = 75%, OR = 6.60 (95%CI: 2.18—19.98)Back to article page