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Войти в исследования Digestive diseases and sciences · 2026
Characteristics and Incidence of Gastric Cancer Among Patients with Autoimmune and Non-autoimmune Atrophic Gastritis in a U.S. Population.
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Tan Mimi C, Caskey Kadon N, Lee Irene Jeong-Ah, Liu Yan, Gomez Cifuentes Juan, Jain Shilpa, El-Serag Hashem B
Аннотация
BACKGROUND: Autoimmune gastritis (AIG) is a risk factor for gastric neuroendocrine tumor (NET). We compared risk factors between AIG cases, non-autoimmune atrophic gastritis (NAIG) cases, and normal controls and determined the incidence of gastric malignancy, including adenocarcinoma and NET.
METHODS: We included patients who underwent endoscopy with gastric biopsy between 3/2006 and 9/2021 in Harris Health (Houston, Texas). We identified AIG cases, NAIG cases (gastric atrophy or intestinal metaplasia [GIM] without autoimmune features), and normal controls (without AIG, NIAG, and GIM). A GI pathologist confirmed AIG diagnosis on histopathology report or slide. We determined risk factors of AIG compared to NAIG cases and normal controls and compared gastric malignancy incidence.
RESULTS: We included 158 AIG cases, 445 NAIG cases, and 2389 controls. Compared to NAIG cases, male sex (adjusted odds ratio [OR] 0.33; 95% confidence interval [CI] 0.21-0.51), current tobacco use (adj OR 0.29; 95% CI 0.14-0.61), and H. pylori (adj OR 0.35; 95% CI 0.24-0.53) were inversely associated with AIG. Anti-parietal cell antibody positivity and elevated gastrin level were associated with AIG. Compared to normal controls, Hispanic and Asian race/ethnicity and age > 40 were associated with AIG. The risk of gastric malignancy, particularly NET, was 2.7-fold higher with AIG compared to NAIG.
CONCLUSIONS: We found several risk factors (age, non-white race, female sex, non-tobacco user, lack of H. pylori) to be associated with AIG. The risk of gastric malignancy was elevated in AIG compared to NAIG which already is a precancerous condition. Early identification of AIG is important for cancer screening.
METHODS: We included patients who underwent endoscopy with gastric biopsy between 3/2006 and 9/2021 in Harris Health (Houston, Texas). We identified AIG cases, NAIG cases (gastric atrophy or intestinal metaplasia [GIM] without autoimmune features), and normal controls (without AIG, NIAG, and GIM). A GI pathologist confirmed AIG diagnosis on histopathology report or slide. We determined risk factors of AIG compared to NAIG cases and normal controls and compared gastric malignancy incidence.
RESULTS: We included 158 AIG cases, 445 NAIG cases, and 2389 controls. Compared to NAIG cases, male sex (adjusted odds ratio [OR] 0.33; 95% confidence interval [CI] 0.21-0.51), current tobacco use (adj OR 0.29; 95% CI 0.14-0.61), and H. pylori (adj OR 0.35; 95% CI 0.24-0.53) were inversely associated with AIG. Anti-parietal cell antibody positivity and elevated gastrin level were associated with AIG. Compared to normal controls, Hispanic and Asian race/ethnicity and age > 40 were associated with AIG. The risk of gastric malignancy, particularly NET, was 2.7-fold higher with AIG compared to NAIG.
CONCLUSIONS: We found several risk factors (age, non-white race, female sex, non-tobacco user, lack of H. pylori) to be associated with AIG. The risk of gastric malignancy was elevated in AIG compared to NAIG which already is a precancerous condition. Early identification of AIG is important for cancer screening.