CEACAM5 and metastatic malignant neoplasm in the lymph nodes: The multivariate analysis showed that sex (male) (P < 0.001), high preoperative CEA (P = 0.044), lymph node metastasis (P = 0.025), distant metastasis (P = 0.030), and low GNRI (P = 0.001) were independent prognostic risk factors for OS.