[Developmental tendencies of gastrointestinal tumors relative to frequency and mortality with special reference to the special situation in Bavaria]. / Entwicklungstendenzen gastrointestinaler Tumoren bezüglich Häufigkeit und Mortalität unter besonderer Berücksichtigung der speziellen Situation in Bayern.

The time trends from 1952-1978 show a decreasing mortality from stomach cancer and increasing rates of cancers of the colon, rectum and pancreas in the Federal Republic of Germany. An analysis of regional trends shows that the stomach cancer rates are highest in the Federal State of Bavaria during the last 30 years. The analysis by age and birth cohorts shows a decrease of mortality rates with increasing year of birth. The effect is most pronounced in persons born after 1910 and in the age groups above 60 years. Since the regional pattern shows higher than average rates in Northeastern Bavaria and the lowest rates in the adjacent region of the Federal State of Hessen, a case control study was launched to investigate the possible reasons. This study will include hitherto considered risk factors, which are discussed, and additional information on dietary and traditional habits.