Tamássy K., Pásztor L., Tóth T., Páldy A. and Nádor G. 2007. Spatial relationship between incidence of gastric cancer mortality and occurence of soils in Hungary and Japan. Gut. 56 (11) Suppl. III. A 104. Abstract Among the risk factors of gastric cancer some data point to the association with rural environment, which raises the hypothetic role of the soil. In this study the link between gastric cancer incidence and soil properties supposed to enhance H. pylori survival in soils, such as acidity, water retention and clayiness were studied by spatial analysis using GIS and statistics.