CD274 and neoplasm: Between the two groups, statistically significant differences were found in surgery (p < 0.001), Borrmann type (p < 0.001), tumor size (p = 0.046), differentiation (p = 0.001), TNM stage (p < 0.001), Lauren type (p < 0.001), PD-1 (p < 0.001), and PD-L1 (p < 0.001).