CEACAM5 and neoplasm: Demographic and clinicopathologic variables that potentially predict OS, LR and DM were collected, including age, gender, tumor location, preoperative carcinoembryonic antigen level (CEA), tumor differentiation, tumor histopathology, number of metastatic lymph nodes, number of total sampled lymph nodes, lymphovascular invasion, perineural invasion, T classification, N classification and adjuvant treatment.