Recurrence scoring system predicting early recurrence for patients with pancreatic ductal adenocarcinoma undergoing pancreatectomy and portomesenteric vein resection

Figure 4 The Recurrence nomogram, and receiver operating characteristics curve analysis of recurrence nomogram score in the training cohort. A: The Recurrence Nomogram for predicting recurrence; B: Receiver operating characteristics (ROC) curves of recurrence nomogram score (RNS) for predicting recurrence in different time intervals; C: ROC curves of RNS, serum recurrence score, and clinicopathological score for predicting early recurrence (ER); D: Stacked plot showing significantly different ratios of ER and delayed recurrence, in the high-risk (RNS > 4.23) and low-risk groups (RNS ≤ 4.23), respectively (P value = 4.467e-09). ROC: Receiver operating characteristics; RNS: Recurrence nomogram score; SRS: Serum recurrence score; CS: Clinicopathological score; ER: Early recurrence; DR: Delayed recurrence.