Multivariate analysis showed that age ≥70 y (HR: 2.279, 95% CI: 1.423–3.651, P = 0.001), open surgery (HR: 2.160, 95% CI: 1.365–3.419, P = 0.001), serosal invasion (HR: 1.853, 95% CI: 1.209–2.840; P = 0.005), lymph node metastasis (HR: 3.122, 95% CI: 1.667–5.846, P < 0.001), preoperative CRP ≥0.5 mg/dL (HR: 1.665, 95% CI: 1.009–2.749, P = 0.046), and low‐VAI (HR: 1.847, 95% CI: 1.186–2.874, P = 0.007) were independent prognostic factors. This evidence concerns the gene CRP and metastatic malignant neoplasm in the lymph nodes.