期刊
EUROPEAN JOURNAL OF CANCER PREVENTION
卷 31, 期 3, 页码 260-269出版社
LIPPINCOTT WILLIAMS & WILKINS
DOI: 10.1097/CEJ.0000000000000703
关键词
diabetes; gastric cancer; risk factors
类别
资金
- Associazione Italiana per la Ricerca sul Cancro (AIRC) [21378]
- Fondazione Italiana per la Ricerca sul Cancro (FIRC)
- Italian League for the Fight Against Cancer (LILT)
- European Cancer Prevention (ECP) Organization
- University of Pittsburgh Medical Center (UPMC)
This study investigated the association between type 2 diabetes and gastric cancer using data from an international consortium. The results showed that there was no overall association between diabetes and gastric cancer, but there was a significant association between diabetes and cardia gastric cancer risk.
Background Prior epidemiologic studies on the association between diabetes and gastric cancer risk provided inconclusive findings, while traditional, aggregate data meta-analyses were characterized by high between-study heterogeneity. Objective To investigate the association between type 2 diabetes and gastric cancer using data from the 'Stomach Cancer Pooling (StoP) Project', an international consortium of more than 30 case-control and nested case-control studies, which is large and provides harmonized definition of participants' characteristics across individual studies. The data have the potential to minimize between-study heterogeneity and provide greater statistical power for subgroup analysis. Methods We included 5592 gastric cancer cases and 12 477 controls from 14 studies from Europe, Asia, North America, and South America in a two-stage individual-participant data meta-analysis. Random-effect models were used to estimate summary odds ratios (ORs) and their corresponding 95% confidence intervals (CIs) by pooling study-specific ORs. Results We did not find an overall association between diabetes and gastric cancer (pooled OR = 1.01, 95% CI, 0.94-1.07). However, the risk of cardia gastric cancer was significantly higher among individuals with type 2 diabetes (OR = 1.16, 95% CI, 1.02-1.33). There was no association between diabetes and gastric cancer risk in strata of Helicobacter pylori infection serostatus, age, sex, BMI, smoking status, alcohol consumption, fruit/vegetable intake, gastric cancer histologic type, and source of controls. Conclusion This study provides additional evidence that diabetes is unrelated to gastric cancer overall but may be associated with excess cardia gastric cancer risk.
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