Association between a novel Dietary Index for Gut Microbiota and periodontitis: a cross-sectional study.

ABSTRACT:

Background

The gut microbiota and periodontitis have attracted increasing research interest. The Dietary Index for Gut Microbiota (DI-GM), a novel metric for assessing gut microbiome diversity, has not yet been investigated in relation to periodontitis.

Methods

This cross-sectional study analyzed data from the 2009-2014 National Health and Nutrition Examination Survey including 9,978 participants aged 30-80 years who had periodontal examination records. Participants were categorized into two groups: no periodontitis (n = 4,879) and periodontitis (mild, moderate, or severe; n = 5,099). The DI-GM was calculated using dietary recall data, incorporating both beneficial and unfavorable components for gut microbiota. Multivariable logistic regression was applied to e

SUBMITTER: Zhang X 

PROVIDER: S-EPMC12857318 | biostudies-literature | 2026

REPOSITORIES: biostudies-literature