AUTHOR=Bi Jinghui , Du Jianwei , Yan Xiaoyi , Chen Rongxin TITLE=Diabetes mediates an inverted L-shaped association between cardiometabolic index and kidney stones: a cross-sectional study from NHANES 2007-2020 JOURNAL=Frontiers in Endocrinology VOLUME=16 YEAR=2025 URL=https://www.frontiersin.org/journals/endocrinology/articles/10.3389/fendo.2025.1535724 DOI=10.3389/fendo.2025.1535724 ISSN=1664-2392