A case-control study of stomach cancer in Shandong Province.

Abstract

Stomach cancer is the leading cause of death from cancer in China. Although the causes of this cancer are unknown, special opportunities exist for the evaluation of etiologic factors in Linqu County in Shandong Province where rates are exceptionally high. We have described here a newly initiated case-control study, which focuses on certain dietary items as risk factors for stomach cancer in Linqu.