Dietary Inflammatory potential and the risk of serrated and adenomatous colorectal polyps

L. Beth Sung, Helen G. Coleman, Nitin Shivappa, James R. Hebert, Harvey J. Murff, Ginger L. Milne, Reid M. Ness, Walter E. Smalley, Wei Zheng, Martha J. Shrubsole*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

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Abstract

Studies of dietary inflammation potential and risks of colorectal cancer precursors are limited, particularly for sessile serrated lesions (SSLs). This study examines the association using the energy-adjusted dietary inflammatory index (E-DIITM), a measure of anti- and/or pro-inflammatory diet, in a large US colonoscopy-based case-control study of 3246 controls, 1530 adenoma cases, 472 hyperplastic polyp cases, and 180 SSL cases. Odds ratios (ORs) and 95% confidence intervals (CIs) were derived from logistic regression models. Analyses were stratified by participant characteristics, and urinary prostaglandin E2 metabolite (PGE-M) and high-sensitivity plasma C-reactive protein (hs-CRP) levels, inflammation biomarkers. Highest E-DII™ intake was associated with significantly increased risks of colorectal adenomas (OR 1.36, 95% CI 1.11, 1.67), and hyperplastic polyps (OR 1.43, 95% CI 1.06, 1.98), compared with participants consuming the lowest E-DII™ quartile. A similar, but non-significant, increased risk was also observed for SSLs (OR 1.41, 95% CI 0.82, 2.41). The positive association was stronger in females (pinteraction
Original languageEnglish
JournalNutrition and Cancer
Early online date04 Oct 2023
DOIs
Publication statusEarly online date - 04 Oct 2023

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