ArticleClinical gastroenterology and hepatology : the official clinical practice journal of the American Gastroenterological Association2015
Cancer Risk After Pernicious Anemia in the US Elderly Population.
Article in Clinical gastroenterology and hepatology : the official clinical practice journal of the American Gastroenterological Association, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 60 papers, 3 of them syntheses that pooled it.
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60 citing papers in PubMed, 3 syntheses or guidelines pooled it, 180 citations in OpenAlex.
- ACG Clinical Guideline: Diagnosis and Management of Gastric Premalignant Conditions.The American journal of gastroenterology · 2025Guideline
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- Autoimmune Diseases and Gastric Cancer Risk: A Systematic Review and Meta-Analysis.Cancer research and treatment · 2019Pooled it
- Low vitamin BInternational journal of cancer · 2017Trial
- Early-onset adenocarcinomas of the distal esophagus, gastroesophageal junction, and stomach: a systematic review and meta-analysis of 45 studies.ESMO gastrointestinal oncology · 2026Review
- Autoimmune Gastritis and Gastric Cancer Risk: Endoscopic and Histopathological Outcomes.Journal of clinical medicine · 2026Article
- Association of Autoimmune Diseases With Pancreatic Cancer: A Nationwide Follow-Up Study From Sweden.Cancer medicine · 2026Article
- Listening to the Past, Shaping the Future: A Data-mining Based and Visual Analysis of Five Decades of Gastric Carcinogenesis Research.Biological procedures online · 2025Article
- Gastric Cancer Risk in Patients with Intestinal Metaplasia: Long-Term Outcomes from a Large Single-Center Cohort in Türkiye.Journal of clinical medicine · 2025Article
- The prognostic and immune significance of fibronectin type III domain-containing 1 gene in pan-cancer and its relationship with proliferation and migration of stomach adenocarcinoma.Translational cancer research · 2025Article
- Gastric Cancer Screening in the United States: A Review of Current Evidence, Challenges, and Future Perspectives.The American journal of gastroenterology · 2025Review
- Assessing gastric cancer risk through longitudinal health check-up data: Insights from a national cohort study in South Korea.PloS one · 2025Article
- DEAD-box helicase family proteins: emerging targets in digestive system cancers and advances in targeted drug development.Journal of translational medicine · 2024Review
- Update understanding on diagnosis and histopathological examination of atrophic gastritis: A review.World journal of gastrointestinal oncology · 2024Review
- Synchronous cancers of the stomach and esophagus in a patient with autoimmune gastritis and pernicious anemia: a case report and review of the literature.International cancer conference journal · 2024Article
- Causal inference between pernicious anemia and cancers: a bidirectional two-sample mendelian randomization analysis.BMC cancer · 2024Article
- Article
- Incidence and prevalence of gastric neuroendocrine tumors in patients with chronic atrophic autoimmune gastritis.World journal of gastrointestinal oncology · 2023Article
- Gastric Cancer: A Practical Review on Management of Individuals with Hereditary or Familial Risk for Gastric Cancer.GE Portuguese journal of gastroenterology · 2023Review
- Article
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Authors and funding
9 authors at 3 institutions in 1 country.
Funding
Abstract
BACKGROUND &
aimsPernicious anemia, a result of autoimmune gastritis, is the most common cause of vitamin B12 deficiency, affecting 2% to 5% of the elderly population. Treatment with vitamin B12 cures the anemia, but not the gastritis. Findings from small studies have indicated that patients with pernicious anemia could have an increased risk of cancer.
methodsWe performed a population-based, case-control study of individuals in the Surveillance, Epidemiology, and End Results-Medicare database, comparing 1,138,390 cancer cases (age, 66-99 y) with 100,000 matched individuals without cancer (controls). Individuals with pernicious anemia were identified based on their medical claims within the year before selection for the study. Odds ratios (OR) and 95% confidence intervals (CI) were calculated using unconditional logistic regression, and models were adjusted for sex, age, and calendar year of diagnosis and selection.
resultsCompared with controls, we found individuals with pernicious anemia to be at increased risk for noncardia gastric adenocarcinoma (OR, 2.18; 95% CI, 1.94-2.45) and gastric carcinoid tumors (OR, 11.43; 95% CI, 8.90-14.69). In addition, people with pernicious anemia have an increased risk of developing tonsilar cancer (OR, 2.00; 95% CI, 1.40-2.85), hypopharyngeal cancer (OR, 1.92; 95% CI, 1.35-2.73), esophageal squamous cell carcinoma (OR, 2.12; 95% CI, 1.76-2.55), small intestinal cancer (OR, 1.63; 95% CI, 1.32-2.02), liver cancer (OR, 1.49; 95% CI, 1.28- 1.73), myeloma (OR, 1.55; 95% CI, 1.37-1.75), acute myeloid leukemia (OR, 1.68; 95% CI, 1.46-1.93), and myelodysplastic syndrome (OR, 2.87; 95% CI, 2.53-3.26). People with pernicious anemia have a lower risk of rectal cancer than the general population (OR, 0.82; 95% CI, 0.74- 0.92).
conclusionsIn a population-based, case-control study of individuals in the Surveillance, Epidemiology, and End Results-Medicare database, we found individuals with pernicious anemia to have significantly increased risks of gastric carcinoid tumors, adenocarcinomas, and other cancers located throughout the body.
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