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Association of Dietary Inflammatory Index with CKD progression and estimated glomerular filtration rate in the American CKD population: A cross-sectional study

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  • Zichen Xu
  • Lei Li
  • Luqing Jiang
  • Ying Zhai
  • Yu Tang
  • Daoqin Liu
  • Qiwen Wu

Abstract

Purpose: The number of CKD patients is on the rise worldwide, and diet has become an essential aspect influencing the treatment and prognosis of CKD. However, limited research has explored the association of the Dietary Inflammatory Index (DII) with CKD progression and the essential kidney function indicator, eGFR, in CKD patients. This study aimed to analyze the association between DII and CKD progression and eGFR in the US CKD population using data from the National Health and Nutrition Examination Survey (NHANES). Methods: This study utilized data obtained from the National Health and Nutrition Examination Survey (NHANES) spanning from 2007 to 2018, with a total sample size of 2,488 individuals. Study used multiple imputation, based on 5 replications and a chained equation approach method in the R MI procedure, to account for missing data. Weighted multiple logistic regression was used to analyze the relationship between DII and the risk of higher CKD stage and a weighted multiple regression analysis was used to assess the relationship between DII and eGFR. Weighted Generalized Additive Models and smoothed curve fitting were applied to detect potential non-linear relationships in this association. Results: In all three models, it was found that DII was positively associated with the risk of higher CKD stage (P

Suggested Citation

  • Zichen Xu & Lei Li & Luqing Jiang & Ying Zhai & Yu Tang & Daoqin Liu & Qiwen Wu, 2024. "Association of Dietary Inflammatory Index with CKD progression and estimated glomerular filtration rate in the American CKD population: A cross-sectional study," PLOS ONE, Public Library of Science, vol. 19(2), pages 1-14, February.
    • Handle: RePEc:plo:pone00:0297916
    DOI: 10.1371/journal.pone.0297916
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