Serum nutritional predictive biomarkers and risk assessment for anastomotic leakage after laparoscopic surgery in rectal cancer patients

Figure 1 Evaluation of the predictive performance of receiver operating characteristic curves for preoperative serum prealbumin, albumin and transferrin independently or in combination for anastomotic leakage. PA: Prealbumin; ALB: Albumin; TRF: Transferrin; TPR: True positive rate; FPR: False positive rate.

Figure 2 Construction and evaluation of the nomogram of anastomotic leakage risk after laparoscopic radical surgery for middle and low rectal cancer based on preoperative serum nutritional markers. A: The nomogram; B: Receiver operating characteristic curve; C: Calibration. TPR: True positive rate; FPR: False positive rate; AUC: Area under the receiver operating characteristic curve; CI: Confidence interval.