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Overall, the past century has seen a substantial decline in gastric cancer, attributable to decreases in risk factors such as H. pylori infection, tobacco smoking, and the intake of salt-preserved food. One potential preventive strategy for those at high risk is H. pylori eradication for infected subjects, but confirmation of this effect awaits longer follow-up. Obesity continues to advance and may cause increases in cardia cancer, particularly in Western populations, and careful monitoring of this outcome is warranted in both Western and Asian populations. These changes in gastric cancer epidemiology foreshadow a new era in gastric cancer control and warrant further monitoring of descriptive patterns and risk factors.
Manami Inoue (Sat,) studied this question.
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