NFIA and metastatic malignant neoplasm in the lymph nodes: Besides, high NFIA expression (HR = 3.044, 95% CI = 1.697–5.457, P < 0.001), T‐stage (HR = 2.156, 95% CI = 1.173–3.963, P = 0.013), and lymph node metastasis (HR = 4.116, 95% CI = 2.442–6.936, P < 0.001) were prognostic risk factors for DFS (Table 2).