Fig. 3From: A preoperative nomogram predicting risk of lymph node metastasis for early-stage cervical cancerReceiver operating characteristic curves of the model. In the training set, the AUC was 0.723 (95% CI, 0.707–0.738) (blue line); in the internal validation set, the AUC was 0.745 (95% CI, 0.720–0.770) (red line); in the external validation set, the AUC was 0.747(95% CI, 0.690–0.804) (green line). AUC, area under the curve; CI, confidence intervalBack to article page