CEACAM5 and gastric cancer: Multivariate analysis showed that MDT intervention and radical surgery were protective factors that reduces the mortality of stage III GC (HR = 0.504, p < 0.001; HR = 0.044, p < 0.001), while gastric body carcinoma, poorly differentiated adenocarcinoma, N3 stage and elevated CEA were adverse factors that increased the mortality of advanced GC (Table 3).