As shown in Table 1, three factors, including VEGFA expression (HR=2.139, 95% CI: 1.286-3.560, P=0.003), lymph node metastasis (HR=2.656, 95% CI: 1.546-4.565, P=0.0004), and TNM stage (HR=2.822, 95% CI: 1.681-4.735, P=0.0001) were prognostic factors for OS, whereas other clinic-pathological factors were not directly related to the clinical outcome of ADC. This evidence concerns the gene VEGFA and metastatic malignant neoplasm in the lymph nodes.