KIF4A and esophageal squamous cell carcinoma: Then, we analyzed 65 human ESCC samples and the results showed that higher KIF4A expression relate to a poor OS (P < 0.05), and our samples confirmed that patients with higher KIF4A expression predicted a decreased OS (P < 0.05) and DFS (disease-free survival, P < 0.01) (Figure 4E).