Trends in Gastric Cancer Types in Japan (1975-1989)
Author Information
Author(s): Kaneko S, Yoshimura T
Primary Institution: Department of Clinical Epidemiology, Institute of Industrial Ecological Sciences, University of Occupational and Environmental Health, Japan
Hypothesis
Different histological types of gastric cancer may differ in their aetiology.
Conclusion
The study found decreasing trends for certain types of gastric cancer and stable trends for others, suggesting different aetiological factors.
Supporting Evidence
- Decreasing trend of intestinal type gastric cancer was observed.
- Stable trend of diffuse type gastric cancer was found.
- Significant decreasing trends for papillary and mucinous adenocarcinomas were noted.
- Tubular adenocarcinomas showed a decreasing trend only in younger age groups.
- Statistically stable trends were found for poorly differentiated adenocarcinomas and signet ring cell carcinoma.
Takeaway
The study looked at how different types of stomach cancer changed over time in Japan, finding that some types are getting less common while others stay the same.
Methodology
Logistic regression models were used to analyze time trends of gastric cancer histological types based on data from the Gastric Cancer Registry of Japan.
Participant Demographics
Data was stratified by age group and sex.
Statistical Information
Statistical Significance
p<0.05
Digital Object Identifier (DOI)
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