AUTHOR=Duan Yang , Yang Ke , Zhang Tianai , Guo Xiangsheng , Yin Qianran , Liu He TITLE=Association between non-highdensity lipoprotein cholesterol to high-density lipoprotein cholesterol ratio and cardiovascular-kidney-metabolic syndrome: evidence from NHANES 2001–2018 JOURNAL=Frontiers in Nutrition VOLUME=12 YEAR=2025 URL=https://www.frontiersin.org/journals/nutrition/articles/10.3389/fnut.2025.1548851 DOI=10.3389/fnut.2025.1548851 ISSN=2296-861X