Our results showed different characteristics of elderly patients compared with non-elderly patients, as follows: a less frequent positive family history, a lower BMI, more presence of symptoms, more underlying comorbidities, lower levels of hemoglobin, cholesterol, and albumin, a larger tumor size, a more macroscopic type of advanced gastric cancer, a more differentiated tumor type, a more advanced TNM stage, and lower resectability. The gene discussed is ALB; the disease is gastric cancer.