- tub1/tub2 tubular adenocarcinoma, por poorly differentiated adenocarcinoma, sig signet-ring cell carcinoma, muc mucinous adenocarcinoma, MSS Microsatellite stable, MSI-H Microsatellite instability-high, EGFR Epidermal growth factor receptor, VEGF Vascular endothelial growth factor, HR Hazard ratio; P-value: Fisher’s exact test, and the value of the comparison between this group and other groups