B3GAT1 and neoplasm: As shown in Table 3, patients with high infiltrating density of CD57+ NK cells in tumor nest had significant reduced death risk (HR = 0.597, 95% CI: 0.392–0.908, P = 0.016) compared with the reference group (patients with low infiltrating density of CD57+ NK cells) after adjusting for gender, age, tumor size, TNM stage and treatment.