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Journal Article
Research Support, N.I.H., Extramural
Research Support, U.S. Gov't, Non-P.H.S.
Demographic and Lifestyle Risk Factors for Gastric Intestinal Metaplasia Among US Veterans.
American Journal of Gastroenterology 2020 March
OBJECTIVES: The risk of noncardia gastric cancer is increased in the presence of gastric intestinal metaplasia. We aimed to identify demographic and lifestyle factors independently associated with the risk of gastric intestinal metaplasia.
METHODS: We used data from a cross-sectional study of patients attending primary care and endoscopy clinics at the Michael E. DeBakey VA Medical Center in Houston, Texas, between February 2008 and August 2013. All patients completed standardized questionnaires and underwent endoscopy with gastric mapping biopsies. Gastric intestinal metaplasia cases included patients with intestinal metaplasia on any noncardia gastric biopsy; we defined extensive gastric intestinal metaplasia as antrum and corpus involvement. We estimated odds ratios (ORs) and 95% confidence intervals (CIs) using multivariate logistic regression models.
RESULTS: We identified 423 cases with gastric intestinal metaplasia and 1,796 controls without gastric intestinal metaplasia. Older age (vs <60 years: 60-69 years AdjOR, 1.50; 95% CI, 1.17-1.93; ≥70 years AdjOR, 2.12; 95% CI, 1.48-3.04), male sex (AdjOR, 2.76; 95% CI, 1.50-5.10), nonwhite race/ethnicity (vs non-Hispanic white: Hispanic, AdjOR, 2.66; 95% CI, 1.89-3.76; black, AdjOR, 2.36; 95% CI, 1.85-3.02), and current smoking status (AdjOR, 1.78; 95% CI, 1.29-2.48) were independently associated with gastric intestinal metaplasia. These risk factors remained statistically significantly associated with gastric intestinal metaplasia after adjusting for Helicobacter pylori infection, and their effect sizes were larger for associations with extensive gastric intestinal metaplasia compared with focal gastric intestinal metaplasia.
DISCUSSION: Older age, male sex, nonwhite race/ethnicity, and current smoking status were the nonendoscopic factors independently associated with gastric intestinal metaplasia in a predominantly nonimmigrant US population.
METHODS: We used data from a cross-sectional study of patients attending primary care and endoscopy clinics at the Michael E. DeBakey VA Medical Center in Houston, Texas, between February 2008 and August 2013. All patients completed standardized questionnaires and underwent endoscopy with gastric mapping biopsies. Gastric intestinal metaplasia cases included patients with intestinal metaplasia on any noncardia gastric biopsy; we defined extensive gastric intestinal metaplasia as antrum and corpus involvement. We estimated odds ratios (ORs) and 95% confidence intervals (CIs) using multivariate logistic regression models.
RESULTS: We identified 423 cases with gastric intestinal metaplasia and 1,796 controls without gastric intestinal metaplasia. Older age (vs <60 years: 60-69 years AdjOR, 1.50; 95% CI, 1.17-1.93; ≥70 years AdjOR, 2.12; 95% CI, 1.48-3.04), male sex (AdjOR, 2.76; 95% CI, 1.50-5.10), nonwhite race/ethnicity (vs non-Hispanic white: Hispanic, AdjOR, 2.66; 95% CI, 1.89-3.76; black, AdjOR, 2.36; 95% CI, 1.85-3.02), and current smoking status (AdjOR, 1.78; 95% CI, 1.29-2.48) were independently associated with gastric intestinal metaplasia. These risk factors remained statistically significantly associated with gastric intestinal metaplasia after adjusting for Helicobacter pylori infection, and their effect sizes were larger for associations with extensive gastric intestinal metaplasia compared with focal gastric intestinal metaplasia.
DISCUSSION: Older age, male sex, nonwhite race/ethnicity, and current smoking status were the nonendoscopic factors independently associated with gastric intestinal metaplasia in a predominantly nonimmigrant US population.
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