Prognostic value of vascular endothelial growth factor receptor 1 and class III β-tubulin in survival for non-metastatic rectal cancer

Figure 3 Kaplan-Meier survival curves of Overall Survival. A: Vascular endothelial growth factor receptor 1 (VEGFR1) expression (low vs high, P = 0.003); B: Class III β-tubulin (TUBB3) expression (low vs high, P = 0.017); C: TUBB3 and VEGFR1 (both low expression vs others, P = 0.003); D: TNM stage and VEGFR1 (stage III + high VEGFR1 expression vs others, P < 0.001).