Kaplan–Meier analysis showed that ESCC patients with high IL-7R expression demonstrated a higher tendency for poorer prognosis than those with low IL-7R expression in terms of disease-free survival (p = 0.055); however, there was no correlation between IL-7R expression and overall survival (p = 0.512) or cause-specific survival (p = 0.394) (Figure 6B). The gene discussed is IL7R; the disease is esophageal squamous cell carcinoma.