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Association Between Body Roundness Index and Periodontitis in Adults With Hypertension: A Cross-Sectional Study
Liting Xie1, Xiaobin Zhang1, Zhiqiang Xu1
1Stomatological Center, Affiliated Hospital of Putian University, Putian, China.
Clinical and Experimental Dental Research
|August 13, 2026
Summary
Higher body roundness index (BRI) is linked to increased periodontitis risk in US adults with hypertension. This association is nonlinear, with risk notably increasing above a BRI threshold.
Area of Science:
- Cardiovascular Health
- Oral Health
- Obesity and Metabolism
Background:
- Hypertension is a prevalent cardiovascular condition.
- Periodontitis is a common oral infection.
- The relationship between body composition and periodontitis in hypertensive individuals requires clarification.
Purpose of the Study:
- To investigate the association between body roundness index (BRI) and periodontitis.
- To examine this relationship in a population of US adults diagnosed with hypertension.
Main Methods:
- Cross-sectional study utilizing NHANES data (2009-2014) from 4117 hypertensive adults.
- Multivariable logistic regression analyzed BRI and periodontitis association.
- Generalized additive and two-piecewise models explored nonlinearity and threshold effects.
Main Results:
- A significant association was found between BRI and periodontitis after covariate adjustment.
- Individuals in the highest BRI quartile exhibited increased odds of periodontitis.
- A nonlinear relationship was identified, with a significant increase in periodontitis risk observed at BRI levels at or above an inflection point of approximately 6.
Conclusions:
- Body roundness index (BRI) is significantly associated with periodontitis in US adults with hypertension.
- The association between BRI and periodontitis is nonlinear, indicating a potential threshold effect.
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