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Epidemiology of gastric non-Hodgkin's lymphoma patients: parallels with Helicobacter pylori.
Epidemiology of gastric non-Hodgkin's lymphoma patients: parallels with Helicobacter pylori. Helicobacter Thorburn, C., Rodriguez, L., Parsonnet, J. 1996; 1 (2): 75-78Abstract
The incidence of gastric non-Hodgkin's lymphoma (NHL) is increasing in the United States. However, little is known about the etiology of the disease. Some studies have shown an association between gastric NHL and Helicobacter pylori. No study has specifically delineated demographic features that distinguish gastric NHL patients from nongastric NHL patients.To obtain information about the differences between gastric and nongastric NHL patients, we conducted a hospital chart review study. We examined charts of all 25 cases of primary gastric NHL, as well as charts of 75 randomly selected nongastric NHL patients as controls. All patients were seen in the Division of Oncology at Stanford University Medical Center from 1972 to 1991. Demographic information was tabulated, and differences between the cases and controls were noted. The identified risk factors were determined by both univariate and logistic regression analyses.There was no difference between gastric NHL cases and nongastric controls with respect to age, gender, race, and family history of any cancer. However, in logistical regression, persons with gastric NHL were more likely than those with other forms of NHL to be born outside the United States (odds ratio = 12.8; 95% confidence interval = 2.9-56.0) and also to have a family history of stomach cancer (odds ratio = 18.4; 95% confidence interval 2.1-160.1).Gastric NHL is more likely than NHL at other sites to occur in persons with a family history of gastric cancer or in those born in developing countries. This epidemiological pattern supports the identified role of H. pylori in the development of gastric lymphoma.
View details for PubMedID 9398881