期刊
UROLOGY
卷 100, 期 -, 页码 84-89出版社
ELSEVIER SCIENCE INC
DOI: 10.1016/j.urology.2016.09.026
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资金
- Italian Foundation for Research on Cancer (FIRC)
- Italian Ministry of Health, General Directorate of European and International Relations [8942]
- United States National Institute of Diabetes and Digestive and Kidney Diseases [R44DK103377]
OBJECTIVE To evaluate the association between diet in relation to its inflammatory property and bladder cancer (BC) risk. METHODS In this study we explored the association between the dietary inflammatory index (DII) and BC risk in an Italian case-control study conducted between 2003 and 2014. Cases were 690 patients with incident and histologically confirmed BC from 4 areas in Italy. Controls were 665 cancerfree subjects admitted to the same network of hospitals as cases for a wide spectrum of acute, nonneoplastic conditions. The DII was computed based on dietary intake assessed using a reproducible and valid 8-item food frequency questionnaire. Odds ratios (OR) were estimated through logistic regression models adjusting for age, sex, total energy intake, and other recognized confounding factors. RESULTS Subjects in the highest quartile of DII scores (ie, with a more pro-inflammatory diet) had a higher risk of BC compared to subjects in the lowest quartile (ie, with an anti-inflammatory diet) (ORQ(uartile4vs1) = 1.97; 95% [confidence interval], 1.28, 3.03; P trend =.003). Stratified analyses produced stronger associations between DII and BC risk among females (ORQuartile4vs1 = 5.73; 95% CI = 1.46, 22.44), older >= 65 years (ORQuartile4vs1 = 2.45; 95% CI = 1.38, 4.34), subjects with higher education >= 7 years (ORQuartile4vs1 = 2.22; 95% CI = 1.27, 3.88), and never smokers (ORQuartile4vs1 = 4.04; 95% CI = 1.51, 10.80). CONCLUSION A pro-inflammatory diet as indicated by higher DII scores is associated with increased BC risk. (C) 2016 Elsevier Inc.
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