NFIA and metastatic malignant neoplasm in the lymph nodes: Univariate Cox regression analysis showed that high NFIA expression (hazard ratio (HR) = 3.031, 95% confidence interval (CI) = 1.754–5.239, P < 0.001), tumor size (HR = 1.781, 95% CI = 1.131–2.805, P = 0.013), T‐stage (HR = 2.334, 95% CI = 1.304–4.179, P = 0.004), and lymph node metastasis (HR = 3.660, 95% CI = 2.661–5.925, P < 0.001) were prognostic risk factors for OS (Table 2).