Figure 5
From: Prognostic relevance of Bmi-1 expression and autoantibodies in esophageal squamous cell carcinoma
Kaplan-Meier analysis of the overall survival of esophageal carcinoma patients categorized according to the T or N classification and status of Bmi-1 expression. The statistical difference of Bmi-1 high-expressing and low-expressing patients was compared between T1-T2 (A) and T3-T4 (B) subgroups. The same comparison was carried out in N0 (C) and N1 (D) groups. P values were calculated by the log-rank test.