Research Paper Volume 15, Issue 4 pp 1107—1129
Prognostic significance of epidermal growth factor receptor and programmed cell death-ligand 1 co-expression in esophageal squamous cell carcinoma
Figure 3. The relationship between EGFR and clinicopathologic characteristics in ESCC. (A) Histological type. (B) Radiation therapy. (C) Barretts esophagus. (D) BMI. (E) OS event. (F) DSS event. (G) PFI event. (H) columnar metaplasia. *, **, *** represents P < 0.05, P < 0.01, P < 0.001, respectively. Abbreviations: BMI: Body Mass Index; OS: Overall Survival; DSS: Disease-Specific Survival; PFI: Progression-Free Interval.