• Pain Med · Aug 2024

    Association between pro-inflammatory diet and abdominal pain: Cross-sectional and case-control study from UK biobank and NHANES 2017-2020.

    • Laifu Li, Yan Zhuang, Yan Ran, Jiamiao Chen, Lianli Wang, Shiwei Lu, Yating Sun, Fangchen Ye, and Fei Dai.
    • Department of Gastroenterology, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, 710004, China.
    • Pain Med. 2024 Aug 1; 25 (8): 523533523-533.

    BackgroundThere is a close association between diet and abdominal pain; however, relationship between inflammatory diet and characteristics of abdominal pain has not been characterized yet.MethodsThis study analyzed baseline data from the UK Biobank, 3-item DHQ-Abdominal Pain Questionnaire (DHQ-3Q), which including abdominal pain in the past 3 months, severity of abdominal pain, and frequency of abdominal pain, and data from the National Health and Nutrition Examination Survey (NHANES) from 2017 to 2020. Energy-adjusted Dietary Inflammatory Index (E-DII), constructed based on 26 or 27 nutrients, was analyzed using continuous or categorical methods. Logistic regression and restricted cubic spline analyses examined the association between E-DII and abdominal pain.ResultsIn UK Biobank, compared to participants in the lowest quintile of E-DII, the adjusted ORs for the highest quintile were 1.12 (95% CI 1.02-1.24; P = .022), 1.05 (95% CI 1.00-1.09; P = .030), 1.26 (95% CI 1.17-1.36; P < .001), and 1.10 (95% CI 1.00-1.20; P = .044) for chronic abdominal pain, abdominal pain in the past three months, severity of abdominal pain, and frequency of abdominal pain, respectively. In NHANES, compared to participants in the lowest quintile of E-DII, the adjusted ORs for the highest quintile were 1.46 (95% CI 1.20-1.77;P < .001), 1.75 (95% CI 1.20-2.60; P = .005), 1.45 (95% CI 1.14-1.87; P = .003), and 1.18 (95% CI 0.82-1.72; P = .380) for abdominal pain in the past year, upper left abdominal pain, upper middle abdominal pain, and upper right abdominal pain. Additionally, there was a nonlinear correlation between E-DII score and DHQ-3Q (P nonlinear <.001).ConclusionFollowing a pro-inflammatory diet is linked to a higher likelihood of experiencing abdominal pain, as well as increased severity and frequency of such pain. Therefore, further longitudinal studies are necessary to investigate this relationship.© The Author(s) 2024. Published by Oxford University Press on behalf of the American Academy of Pain Medicine. All rights reserved. For permissions, please e-mail: journals.permissions@oup.com.

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