However, there was no significant association between AFP, CEA, CA242, CA199, CA724, neutrophil count (N), lymphocyte count (L), platelet count (P), neutrophil-to-lymphocyte ratio (NLR), platelet-to-lymphocyte ratio (PLR), hemoglobin (Hb), albumin (Alb), and the occurrence of occult peritoneal metastasis in gastric cancer. This evidence concerns the gene GSTM1 and gastric cancer.