Association between body roundness index and prevalence of kidney stone in the U.S: a study based on the NHANES database

This study aimed to evaluate the potential association between the body roundness index (BRI) and kidney stone prevalence in adults in the United States. A cohort of participants from the National Health and Nutrition Examination Survey (NHANES) database spanning 2007–2018 were gathered for analysis. Logistic regression analyses, subgroup assessments, and calculations were employed to examine the potential link between BRI and kidney stone prevalence. The study included 30,990 participants aged > 20 years, of which 2,891 declared a kidney stone history. After modulating all relevant confounding factors, each unit increase in the BRI was linked to a 65