Abstract
ABSTRACTBackgroundChronic kidney disease (CKD) is associated with high rates of cardiovascular events. We here explored whether the recently described triglycerides–glucose index (TyG) predicted the incidence of major adverse cardiovascular events (MACE) in these patients.MethodsThis observationa study was undertaken of 1142 persons with CKD and free from diabetes and 460 controls from the prospective NEFRONA study. The study exposure was the TyG index at cohort inclusion. The study outcome was MACE (cardiovascular death, nonfatal myocardial infarction, nonfatal stroke and hospitalization for unstable angina). Covariates included demographics, comorbidities, lipid profile, renal function and glycaemic control. Cox regression models evaluated the association between TyG index and 4-point MACE in patients with CKD.ResultsTyG was higher [median 8.63 (interquartile range 8.32–8.95)] in patients with CKD compared with controls (P < 0.001). TyG increased across albuminuria categories but was similar for glomerular filtration rate categories among patients with CKD stages 3–5. During 46 ± 13 months of follow-up, 49 (4.3%) MACE were registered. TyG predicted the occurrence of MACE {hazard ratio (HR) 1.95 [95% confidence interval (CI) 1.11–3.40] per TyG unit increase; and HR 2.29 (95% CI 1.24–4.20] for TyG values above the median of 8.63 units}. Sensitivity analysis for subgroups of participants according to age, kidney function, body mass index and imaging evidence of atherosclerosis yielded similar results, as did adjusted analysis. Neither triglycerides nor glucose alone was associated with MACE.ConclusionsThe TyG index is associated with the occurrence of major cardiovascular events in persons free from diabetes with non-dialysis dependent CKD.
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