Association of non-high-density lipoprotein cholesterol to high-density lipoprotein cholesterol ratio with all-cause mortality and cardio-cerebrovascular disease mortality in elderly patients with cardiovascular-kidney-metabolic syndrome stages 0-3: a cohort study. - Xu S; Lin W; Ling Z; Liao C; Lv M; Liu H; Zhang Z (Frontiers in nutrition, 2026)