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Hematopoietic cancer and peptic ulcer: a multicenter case-control study
P Vineis1, P Crosignani, C Sacerdote
1Unit of Cancer Epidemiology, Ospedale S. Giovanni and CPO-Piemonte, via Santena 7, I-10126 Torino, Unit of Epidemiology, National Cancer Institute, Milano, Italy.
Carcinogenesis
|July 30, 1999
Summary
A peptic ulcer diagnosis significantly increases the risk of gastric non-Hodgkin's lymphoma (NHL), particularly among individuals with higher education levels and females. This association highlights a potential link between gastrointestinal conditions and NHL development.
Area of Science:
- Gastroenterology and Oncology
- Epidemiology and Public Health
- Hematology
Background:
- Helicobacter pylori infection is a suspected factor in gastric cancer and gastric non-Hodgkin's lymphoma (NHL).
- Previous research indicated a six-fold increased risk of gastric NHL in individuals positive for anti-H. pylori antibodies.
Purpose of the Study:
- To investigate the association between peptic ulcer diagnosis and the risk of developing gastric non-Hodgkin's lymphoma (NHL).
- To explore potential effect modifications by factors such as time since diagnosis, educational level, and gender.
Main Methods:
- A population-based case-control investigation involving 2671 cases and 1718 controls in Italy.
- Data collection through face-to-face interviews, analyzing the relationship between peptic ulcer history and NHL diagnosis.
Main Results:
- Subjects with a peptic ulcer diagnosis showed a 5.6-fold increased risk for gastric NHL.
- The association remained significant even after excluding recent diagnoses and considering historical diagnostic practices.
- Strong effect modification observed by educational level and gender, with higher risks in more educated individuals and females.
Conclusions:
- A substantial increased risk for gastric NHL is associated with a history of peptic ulcer disease.
- The findings support a link between gastrointestinal pathologies and gastric NHL, particularly MALT lymphomas.
- Educational level and gender significantly modify this risk association.