[Cost cut of cancer by a shift in gastric cancer risk screening (serum ABC classification) combined with eradication of H. pylori, and H. pylori test and treatment program in young people].

: We estimated the costs and the benefits of a shift strategy of gastric cancer risk screening (ABC stratification) with H. pylori eradication, and H. pylori test and treatment program in young people, comparing with the current barium gastrograph. The combination of serum pepsinogen, assessing atrophic gastritis status, and H. pylori antibody testing allows for ABC risk stratification. The ABC risk screening could greatly reduce screening and treating cost of gastric cancer. The H. pylori test and treatment program could be the most effective primary prevention of not only gastric cancer but H. pylori-related disease, thereby reducing national cost of cancer and healthcare expenditure. The Japanese Government should take the initiative to implement this strategy as soon as possible.