NFIB and esophageal squamous cell carcinoma: Chi‐square test revealed that high NFIA expression significantly correlated with poor differentiation (P = 0.046), lymph node metastasis (P = 0.021), and advanced TNM stage (P = 0.045) in ESCC, while high NFIB expression only correlated with poor differentiation degree (P = 0.038) (Table 1).