Data for the baseline clinicopathologic variables available in the database were as follows: sex, age, body mass index, Karnofsky Performance Scale (KPS) score, characteristics of the primary gastric tumor (location, size, Borrmann classification, degree of histologic differentiation, depth of invasion, lymph node metastasis), characteristics of hepatic metastases (type, number, size and distribution), neutrophil to lymphocyte ratio (NLR), presence of carcinoembryonic antigen (CEA), alpha-fetoprotein (AFP) level, and types of treatment. The gene discussed is AFP; the disease is metastatic malignant neoplasm in the lymph nodes.