ArticleFrontiers in nutrition2025
Mediating role of triglyceride glucose-related index in the associations of composite dietary antioxidant index with cardiovascular disease and mortality in older adults with hypertension: a national cohort study.
Article in Frontiers in nutrition, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.
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3 citing papers in PubMed.
- Associations of cumulative exposure and dynamic trajectories of cholesterol-HDL-glucose (CHG) index with cardiovascular disease in middle-aged and older Chinese adults: a longitudinal analysis.Cardiovascular diabetology · 2026Article
- Association of the Composite Dietary Antioxidant Index with All-Cause, Cancer, and Cardiovascular Mortality: A Prospective Cohort Study.Food science & nutrition · 2026Article
- The nonlinear association between the triglyceride glucose-waist-to-height ratio index and cardiovascular disease among middle-aged and older adults in China with cardiovascular-kidney-metabolic syndrome stages 0-3.Frontiers in cardiovascular medicine · 2025Article
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7 authors.
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Abstract
Background: This research investigates the relationships between the composite dietary antioxidant index (CDAI) and the likelihood of cardiovascular disease (CVD) and mortality in older adults with hypertension. Utilized data from the National Health and Nutrition Examination Survey (NHANES) to investigate the potential mediating role of the triglyceride-glucose (TyG) index in these relationships. Methods: A cohort of 5,276 participants, aged 65 years or older and diagnosed with hypertension, was extracted from the NHANES database. The main outcomes examined were the odds of CVD and mortality, utilizing data from the National Center for Health Statistics (NCHS). Multivariate logistic regression models were utilized to evaluate the relationship between CDAI and CVD. Cox proportional hazards regression models and Kaplan-Meier survival curves were utilized to analyze the relationship between CDAI and mortality. Mediation analysis was conducted to assess the potential intermediary role of TyG-related indicators-specifically TyG, TyG-BMI, TyG-WC, and TyG-WHtR- in the connection between CDAI and mortality. Results: The mean CDAI for the study participants was 1.88 ± 3.90, and the average age was 74.15 ± 5.96 years. During an average follow-up duration of 109.51 months, 4,712 cases of CVD and 725 recorded deaths were observed. In the fully adjusted models, CDAI showed a negative association with both CVD (Odds Ratio [OR] = 0.94, 95% Confidence Interval [CI] = 0.92-0.97) and mortality (Hazard Ratio [HR] = 0.95, 95% CI = 0.93-0.97). Mediation analysis indicated that the TyG-BMI, TyG-WC, and TyG-WHtR indices accounted for 33.1%, 34.3%, and 19.1% of the relationship between CDAI and mortality, respectively. Conclusion: A higher CDAI demonstrated an inverse association with both CVD and mortality in elderly hypertensive individuals. The relationship was partially mediated by TyG-related indices, indicating that increased antioxidant intake may lead to improved health outcomes and a decreased risk of poor prognosis in this population.
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