In this study, we will observe the long-term survival rate, overall mortality rate, gastric cancer specific mortality rate, and the incidence rate of metachronous cancer in patients who received subtotal gastrectomy, with or without Helicobacter pylori eradication.

In this study, we will observe the long-term survival rate, overall mortality rate, gastric cancer specific mortality rate, and the incidence rate of metachronous cancer in patients who received subtotal gastrectomy, with or without Helicobacter pylori eradication. In addition, we will analyze the correlation between the incidence and survival rate of this type of stomach cancer by comparing smoking, gastric cancer direct family history, disease stage (TNM staging), the histologic type of stomach cancer (intestinal, diffuse, mixed), and the surgical method (Billoth I, Billoth II) as well as the infection and eradication status of H. pylori.

Inclusion Criteria:

• Patients diagnosed with gastric cancer and received surgery (partial, distal, subtotal gastrectomy), and tested Helicobacter pylori status

Exclusion Criteria:

• Patients with other severe diseases (other primary cancer, severe cardiovascular, cerebral, renal, hepatic diseases)
• Patients received palliative treatment

Patients diagnosed with gastric cancer and received surgery (partial, distal, subtotal gastrectomy), and tested Helicobacter pylori status in Seoul National University Bundang Hospital, from 2003 to 2018