FIGURE 7. The incidence of adenocarcinoma. The DER50 group versus all other groups: P < 0.005. The BD30 group versus the RY group: P < 0.05. DER50, total gastrectomy and esophagojejunostomy to induce duodenoesophageal reflux, killed after 50 weeks; BD30, conversion from esophagojejunostomy to biliary diversion procedure to prevent duodenoesophageal reflux at the 30th week, killed after 50 weeks; BD20, conversion from esophagojejunostomy to biliary diversion procedure to prevent duodenoesophageal reflux at the 20th week, killed after 50 weeks; RY, total gastrectomy and Roux-en-Y reconstruction, killed after 50 weeks; DER30, total gastrectomy and esophagojejunostomy to induce duodenoesophageal reflux, killed after 30 weeks; DER20, total gastrectomy and esophagojejunostomy to induce duodenoesophageal reflux, killed after 20 weeks.