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Time trends of mortality from gastric cancer in Europe
1The Oregon Health and Science University, and Portland VA Medical Center, Portland, OR 97239, USA. sonnenbe@ohsu.edu
Background:
The time trends of gastric and duodenal ulcer disease are shaped by a birth-cohort phenomenon.
Aims:
The aim of this study was to assess the extent by which a birth-cohort phenomenon also affected the long-term time trends of gastric cancer among different European countries.
Methods:
Mortality data from France, Germany, Netherlands, Scotland, Spain, and Sweden of the past 56-85 years were analyzed. The age-specific death rates were plotted against the period of death as period-age contours and against the period of birth as cohort-age contours.
Results:
The long-term time trends of gastric cancer mortality were found to have risen among generations born during the 18th century until the mid-19th century and then to have declined in all subsequent generations. The rise and fall of gastric cancer preceded similar birth-cohort patterns of gastric and duodenal ulcer by about 10-30 years. With the exception of gastric cancer in Germany, similar birth-cohort phenomena were found in all countries, as well as in men and women.
Conclusions:
The time trends of mortality from gastric cancer and peptic are shaped by birth-cohort patterns that have affected all countries of Europe. It remains an enigma why mortality associated with gastric cancer and peptic ulcer suddenly started to rise within a short time period during the 19th century.
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