PDCD1 and neoplasm: Based on the univariate analysis, age (p<0.01), T-stage (p<0.01), tumor grade (p<0.01), EP263 (p<0.01), HER2 (p<0.01), PD1 (p<0.01), CD8 (p<0.05), and Ki67 (p<0.01) were significant prognostic factors.