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Tobacco smoking as a risk factor for colon polyps
1Occupational Studies Section, National Cancer Institute, Rockville, MD 20892.
American Journal of Public Health
|July 1, 1991
Summary
Current smokers have a higher prevalence of colon polyps compared to never-smokers or ex-smokers. This association, particularly with adenomatous polyps, warrants further investigation due to the link between polyps and colon cancer.
Area of Science:
- Gastroenterology
- Oncology
- Epidemiology
Background:
- Colon polyps are recognized as precursor lesions for colon cancer.
- Investigating risk factors for colon polyp development is crucial for cancer prevention.
Purpose of the Study:
- To evaluate the association between tobacco smoking and the prevalence of colon polyps.
- To explore the relationship between smoking intensity and polyp characteristics.
Main Methods:
- A cohort of 549 White men underwent flexible sigmoidoscopy between 1981-1983.
- Participants completed self-administered questionnaires detailing smoking history and occupational exposures.
Main Results:
- A dose-response relationship was observed between smoking and colon polyp prevalence.
- Both adenomatous and hyperplastic polyps were associated with smoking, with larger polyps (>1 cm) showing a stronger link.
- An interaction between smoking and occupational exposure (pattern makers) suggested increased risk.
Conclusions:
- Tobacco smoking is significantly associated with an increased prevalence of colon polyps.
- The findings underscore the importance of smoking cessation for reducing colon cancer risk.
- Further research is recommended to elucidate the link between colon polyps and smoking.