Fig. 2From: Higher serum PGE2 is a predicative biomarker for postoperative delirium following elective orthopedic surgery in elderly patientsROC curve analysis of age, preoperative serum NfL and PEC2 levels for distinguishing POD. (n = 131). ROC: receiver operating characteristic; NfL: neurofilament light; PGE2: prostaglandin E2; POD: postoperative deliriumBack to article page