Hospital type- and volume-outcome relationships in esophageal cancer patients receiving non-surgical treatments

Figure 1 Kaplan-Meier plot. A: Showing that the overall survival was better in the non-medical centers (blue line) compared with the medical centers (red line) (P = 0.027, non-medical centers vs medical centers ); B: Showing that no overall survival difference was noted between the hospitals in Q3-4 (red line) and Q1-2 (blue line) (P = 0.315, Q3-4 vs Q1-2); C: Showing that the overall survival was better in the low-volume hospitals (Q1-3, blue line) compared with the very high-volume hospitals [Q4, red line (P = 0.001), low volume hospitals vs high volume hospitals].