Association between body roundness index and periodontitis: A cross-sectional study

Area of Science:

• Oral Health
• Public Health
• Obesity Research

Background:

• Periodontitis is a common inflammatory disease linked to systemic health issues like obesity.
• Existing measures like BMI may not fully capture the relationship between obesity and periodontitis.

Purpose of the Study:

• To compare the predictive power of the body roundness index (BRI) versus body mass index (BMI) for moderate-to-severe periodontitis.
• To investigate the nonlinear association between BRI and periodontitis, particularly in relation to obesity.

Main Methods:

• Analysis of data from 10,297 US adults (National Health and Nutrition Examination Survey 2009-2014).
• Definition of moderate-to-severe periodontitis using CDC/AAP criteria.
• Weighted regression and restricted cubic spline models to assess BRI-periodontitis relationships and BRI-BMI interactions.

Main Results:

• A significant nonlinear association was found between BRI and moderate-to-severe periodontitis (P=.007).
• The highest BRI quartile showed an adjusted odds ratio of 1.571 for periodontitis compared to the lowest.
• The BRI-periodontitis association was most pronounced and nonlinear in individuals with obesity (BMI ≥ 30).

Conclusions:

• BRI demonstrates a significant nonlinear association with moderate-to-severe periodontitis, particularly in obese individuals.
• BRI may offer a more refined tool for periodontal risk stratification by assessing body fat distribution.
• Further research is needed to validate these findings longitudinally.