Risk stratification in gastric cancer lung metastasis: Utilizing an overall survival nomogram and comparing it with previous staging

Figure 10  Comparison between the new and old models of net reclassification improvement and integrated discrimination improvement. A: Receiver operating characteristic (ROC) curve of the participants in the 1-year integrated discrimination improvement (IDI) of the new model; B: ROC curve of the participants in the 3-year IDI of the new model; C: Area under the receiver operating characteristic curve difference between new and old model in 1-year and 3-year; D: New model net reclassification improvement and IDI for 1 Year and 3 Years. ROC: Receiver operating characteristic; AUC: Area under the receiver operating characteristic curve; NRI: Net reclassification improvement; IDI: Integrated discrimination improvement.