There were significant differences in OS among the tumor stages: T (hazard ratio [HR]: 1.711; 95% CI: 1.048–2.793; P =0.032; Figure 4G), N (HR: 3.717; 95% CI: 2.160-6.397; P <0.001; Figure 4H), M (HR: 3.696; 95% CI: 1.991–6.862; P <0.001; Figure 4I), TNM (HR: 3.765; 95% CI: 1.828–7.756; P <0.001; Figure 4J), and level of CXCL7 (HR: 2.343; 95% CI: 1.431–3.837; P =0.001; Figure 4N) and VEGF (HR: 1.931; 95% CI: 1.189–3.136, P = 0.008; Figure 4O). This evidence concerns the gene PPBP and neoplasm.