AUTHOR=Huang Lihua , He Liuliu , Zeng Qingfeng , Huang Jinjing , Luo Xiaoyan , Zhong Qiuming TITLE=Nonlinear association between glycated hemoglobin levels and mortality in elderly patients with non-diabetic chronic kidney disease: a national health and nutrition examination survey analysis JOURNAL=Frontiers in Endocrinology VOLUME=16 YEAR=2025 URL=https://www.frontiersin.org/journals/endocrinology/articles/10.3389/fendo.2025.1416506 DOI=10.3389/fendo.2025.1416506 ISSN=1664-2392