期刊
BRITISH JOURNAL OF CANCER
卷 103, 期 1, 页码 115-119出版社
NATURE PUBLISHING GROUP
DOI: 10.1038/sj.bjc.6605706
关键词
diabetes; biliary tract cancers; biliary stones; mediation modelling
类别
资金
- Health, National Cancer Institute, Division of Cancer Epidemiology and Genetics, USA
BACKGROUND: Biliary tract cancers are rare but fatal malignancies. Diabetes has been related to biliary stones, but its association with biliary tract cancers is less conclusive. METHODS: In a population-based case-control study of 627 cancers, 1037 stones, and 959 controls in Shanghai, China, we examined the association between diabetes and the risks of biliary tract cancer and stones, as well as the effect of potential mediating factors, including serum lipids and biliary stones (for cancer), contributing to the causal pathway from diabetes to biliary diseases. RESULTS: Independent of body mass index (BMI), diabetes was significantly associated with gallbladder cancer and biliary stones ((odds ratio (OR) (95% confidence interval) = 2.6 (1.5-4.7) and 2.0 (1.2-3.3), respectively). Biliary stones and low serum levels of high-density lipoprotein (HDL) were significant mediators of the diabetes effect on gallbladder cancer risk, accounting for 60 and 17% of the diabetes effect, respectively. High-density lipoprotein was also a significant mediator of the diabetes effect on biliary stones, accounting for 18% of the diabetes effect. CONCLUSIONS: Independent of BMI, diabetes is a risk factor for gallbladder cancer, but its effect is mediated in part by biliary stones and serum HDL levels, suggesting that gallbladder cancer risk may be reduced by controlling diabetes, stones, and HDL levels. British Journal of Cancer (2010) 103, 115-119. doi:10.1038/sj.bjc.6605706 www.bjcancer.com Published online 1 June 2010 (C) 2010 Cancer Research UK
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