Cancer causes & control : CCC · 2011
Diabetes mellitus and increased risk of biliary tract cancer: systematic review and meta-analysis.
СтатьяМетаанализСистематический обзорНазвание и аннотация: Перевод пока не подготовлен
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Ren Hong-Bo, Yu Tao, Liu Chao, Li Yan-Qing
Аннотация
OBJECTIVE: Epidemiological evidences indicate that diabetic individuals may have an increased risk of several cancers; however, the relationships between diabetes and risk of cancers of biliary tract or its subsites remain unclear.
METHODS: To provide a quantitative assessment of this relationship, we identified studies by a literature search of Medline (from 1 January 1966) and EMBASE (from 1 January 1974), through 31 July 2010, and by searching the reference lists of pertinent articles. Summary relative risks with corresponding 95% confidence intervals were calculated with a random-effect model.
RESULTS: Analysis of 21 studies (8 case-control and 13 cohort studies) found that diabetes was associated with an increased risk of biliary tract cancer, compared with no diabetes (summary RRs = 1.43, 95% CI = 1.18-1.72), with significant heterogeneity among studies (p = 0.001). The positive association was also found between diabetes and risk of gallbladder cancer or extrahepatic cholangiocarcinoma, but not cancer of ampulla of Vater. No significant publication bias was found.
CONCLUSION: These findings strongly support the link between diabetes and increased risk of cancer of biliary tract and its subsites: gallbladder cancer or extrahepatic cholangiocarcinoma, but not cancer of ampulla of Vater.
METHODS: To provide a quantitative assessment of this relationship, we identified studies by a literature search of Medline (from 1 January 1966) and EMBASE (from 1 January 1974), through 31 July 2010, and by searching the reference lists of pertinent articles. Summary relative risks with corresponding 95% confidence intervals were calculated with a random-effect model.
RESULTS: Analysis of 21 studies (8 case-control and 13 cohort studies) found that diabetes was associated with an increased risk of biliary tract cancer, compared with no diabetes (summary RRs = 1.43, 95% CI = 1.18-1.72), with significant heterogeneity among studies (p = 0.001). The positive association was also found between diabetes and risk of gallbladder cancer or extrahepatic cholangiocarcinoma, but not cancer of ampulla of Vater. No significant publication bias was found.
CONCLUSION: These findings strongly support the link between diabetes and increased risk of cancer of biliary tract and its subsites: gallbladder cancer or extrahepatic cholangiocarcinoma, but not cancer of ampulla of Vater.