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Plasma triglyceride level and mortality from coronary heart disease
1Department of Community and Family Medicine, University of California, La Jolla.
The New England Journal of Medicine
|April 29, 1993
Summary
Plasma triglyceride levels showed no independent link to coronary heart disease death. However, a small association was seen in specific subgroups, particularly those with lower HDL cholesterol and younger age.
Area of Science:
- Cardiology
- Metabolic Health
- Epidemiology
Background:
- The role of plasma triglyceride levels as a risk factor for coronary heart disease (CHD) remains controversial.
- Evaluating triglyceride levels is challenging due to methodological complexities.
Purpose of the Study:
- To investigate the association between plasma triglyceride levels and 12-year CHD mortality.
- To adjust for confounding factors like high-density lipoprotein (HDL) cholesterol, low-density lipoprotein (LDL) cholesterol, fasting plasma glucose, and age.
Main Methods:
- Analysis of 10 North American populations from the Lipid Research Clinics Follow-up Study.
- Sex-specific analyses and stratification by HDL cholesterol, LDL cholesterol, fasting plasma glucose, and age.
Main Results:
- Coronary death rates increased with triglyceride levels in initial analyses.
- After adjusting for covariates, the association between triglyceride levels and coronary mortality was not statistically significant.
- An association was observed in subgroups with lower HDL and LDL cholesterol and in younger individuals, but it was small and not significant after glucose adjustment.
Conclusions:
- Plasma triglyceride levels do not appear to be an independent risk factor for coronary mortality.
- Subgroup analyses suggest a potential, albeit small and not statistically significant, association in specific populations.
- Further research may be needed to clarify the role of triglycerides in CHD risk stratification.