Figure 5. Kaplan-Meier survival analysis for PNI. During long-term follow-up period (median, 50 months), patients group with PNI ≤40 had significantly worse survival than patients with PNI >40 (p <0.001). Mean survival time for PNI ≤40 and PNI >40 was 54.033±7.277 and 79.521±2.607, respectively) (p <0.001).