Figure 4

The combination of high VEGF and high VEGFR-1 correlates with improved overall and progression-free survival. VEGF+R1 is the combined score of the individual scores for VEGF and VEGFR-1, which are weighted equally. (a) Kaplan–Meier analysis shows improved overall with increasing VEGF+R1 score (P=0.003). (b) While Kaplan–Meier analysis also shows increased progression-free survival with increasing VEGF+R1 score (P=0.026).