Application of preoperative artificial neural network based on blood biomarkers and clinicopathological parameters for predicting long-term survival of patients with gastric cancer

Figure 3 Subgroup survival curves of the preoperative artificial neural network. A: The survival curve of each subgroup of the preoperative artificial neural network model showed good discrimination in the training and testing sets (P < 0.05). B: The survival analysis of the training set showed that the substages of the TNM system were well differentiated (P < 0.05). Preope-ANN: Preoperative artificial neural network.