1. The association between TyG index and cardiovascular mortality is modified by antidiabetic or lipid-lowering agent: a prospective cohort study.
- Author
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Fang C, Peng N, Cheng J, Zhang X, Gu W, Zhu Z, Yin X, Yan Z, Zhang J, Yu P, and Liu X
- Subjects
- Humans, Male, Female, Middle Aged, Prospective Studies, Risk Assessment, Treatment Outcome, Aged, Insulin Resistance, Time Factors, Dyslipidemias blood, Dyslipidemias mortality, Dyslipidemias drug therapy, Dyslipidemias diagnosis, Heart Disease Risk Factors, Cause of Death, Prognosis, United States epidemiology, Diabetes Mellitus mortality, Diabetes Mellitus blood, Diabetes Mellitus diagnosis, Diabetes Mellitus drug therapy, Republic of Korea epidemiology, Predictive Value of Tests, Hypoglycemic Agents therapeutic use, Hypoglycemic Agents adverse effects, Cardiovascular Diseases mortality, Cardiovascular Diseases blood, Cardiovascular Diseases diagnosis, Hypolipidemic Agents therapeutic use, Hypolipidemic Agents adverse effects, Blood Glucose metabolism, Blood Glucose drug effects, Biomarkers blood, Triglycerides blood, Nutrition Surveys
- Abstract
Background: The triglyceride-glucose (TyG) index is recognized as an alternative measure of insulin resistance (IR) and has been linked to the risks of cardiovascular disease (CVD) and mortality. This study aimed to evaluate whether the association between the TyG index and CVD mortality is influenced by the use of antidiabetic and hypolipidemic agents, given their potential modifying effects on the TyG index., Methods: Participants from the National Health and Nutrition Examination Survey (1999-2018) were included in the study. Mortality outcomes were tracked through linkage with National Death Index records until December 31, 2019. Data on the use of antidiabetic and hypolipidemic medications (including prescribed insulin, diabetic pills, and cholesterol-lowering agents) were self-reported by participants., Results: A total of 5,046 adults (representing 42,753,806 individuals, weighted mean age 61.08 years [SE: 0.24]; 49.35% female) were analyzed. The TyG index was significantly associated with all-cause and CVD mortality, and these associations were modified by the use of antidiabetic and hypolipidemic agents (p < 0.01). Significant interactions were observed between the TyG index and the use of these agents for mortality outcomes after full adjustments (p-value for interaction < 0.05). Exposure-effect analysis revealed a U-shaped relationship between TyG index levels and the risks of all-cause and CVD mortality in participants using these agents, while a linear positive relationship was observed in participants not using these agents., Conclusions: The use of antidiabetic and hypolipidemic agents modify the association between the TyG index and all-cause and CVD mortality. These findings suggest that future studies on the TyG index and its relationship with CVD and mortality should account for the modifying effects of these agents., Competing Interests: Declarations. Ethics approval and consent to participate: The study protocol was approved by the NHANES Institutional Review Board and implemented in accordance with the Declaration of Helsinki, with all NHANES participants providing signed informed consent. Consent for publication: The authors have no relevant conflicts of interest to disclose. Competing interests: The authors declare no competing interests., (© 2025. The Author(s).)
- Published
- 2025
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