Fig. 2From: Optimal time period for blood glucose level evaluation after total knee arthroplasty in patients without diabetes: a prospective, observational studyROC curve for preoperative HbA1c in the prediction of BGL of > 150 mg on POD 1. The cut-off value for preoperative HbA1c for prediction of hyperglycemia above 150 mg/dl on POD 1 was chosen to be 5.9% (black circle)Back to article page