Moreover, gender, age, surgical method, time of surgery, intraoperative bleeding, tumor T-stage, lymph node metastasis, peripheral nerve metastasis, tumor number, size, CEA level after combined treatment, CA125 level, CA72-4 level, NRS2002 score, intraoperative blood transfusion, and H. pylori infection were found to be significant influencing factors for five-year mortality in gastric cancer patients (Table 1). Here, CEACAM5 is linked to neoplasm.