March 9, 2020European Heart Journal129 citations
View Full PaperTriglycerides and remnant cholesterol associated with risk of aortic valve stenosis: Mendelian randomization in the Copenhagen General Population Study
Key Result
Higher triglycerides and remnant cholesterol were observationally and genetically associated with increased risk of aortic valve stenosis (genetic OR 1.51; 95% CI 1.22-1.86 for highest allele score).
Study Design
Type
Observational (n=108,559)
Structured PICO
Are higher levels of plasma triglycerides and remnant cholesterol associated with an increased risk of aortic valve stenosis in the general population?
P
Population
108,559 individuals from the Copenhagen General Population Study evaluated for the observational and genetic association between plasma triglycerides, remnant cholesterol, and incident aortic valve stenosis.
E
Exposure
Higher levels of plasma triglycerides and remnant cholesterol (observational and genetic variants)
C
Comparator
Lower levels of plasma triglycerides and remnant cholesterol (observational and genetic variants)
O
Outcome
Incident aortic valve stenosishard clinical
Higher plasma triglycerides and remnant cholesterol are both observationally and genetically associated with an increased risk of incident aortic valve stenosis.
Main Result
Odds Ratio: 1.51 (95% CI 1.22–1.86)
Abstract
AIMS: We tested the hypothesis that higher levels of plasma triglycerides and remnant cholesterol are observationally and genetically associated with increased risk of aortic valve stenosis. METHODS AND RESULTS: We included 108 559 individuals from the Copenhagen General Population Study. Plasma triglycerides, remnant cholesterol (total cholesterol minus low-density lipoprotein and high-density lipoprotein cholesterol), and 16 genetic variants causing such increased or decreased levels were determined. Incident aortic valve stenosis occurred in 1593 individuals. Observationally compared to individuals with triglycerides <1 mmol/L (<89 mg/dL), the multifactorially adjusted hazard ratio for aortic valve stenosis was 1.02 95% confidence interval (CI) 0.87-1.19 for individuals with triglycerides of 1.0-1.9 mmol/L (89-176 mg/dL), 1.22 (1.02-1.46) for 2.0-2.9 mmol/L (177-265 mg/dL), 1.40 (1.11-1.77) for 3.0-3.9 mmol/L (266-353 mg/dL), 1.29 (0.88-1.90) for 4.0-4.9 mmol/L (354-442 mg/dL), and 1.52 (1.02-2.27) for individuals with triglycerides ≥5 mmol/L (≥443 mg/dL). By age 85, the cumulative incidence of aortic valve stenosis was 5.1% for individuals with plasma triglycerides <2.0 mmol/L (77 mg/dL), 6.5% at 2.0-4.9 mmol/L (177-442 mg/dL), and 8.2% for individuals with plasma triglycerides ≥5.0 mmol/L (443 mg/dL). The corresponding values for remnant cholesterol categories were 4.8% for <0.5 mmol/L (19 mg/dL), 5.6% for 0.5-1.4 mmol/L (19-57 mg/dL), and 7.4% for ≥1.5 mmol/L (58 mg/dL). Genetically, compared to individuals with allele score 13-16, odds ratios for aortic valve stenosis were 1.30 (95% CI 1.20-1.42; Δtriglycerides +12%; Δremnant cholesterol +11%) for allele score 17-18, 1.41 (1.31-1.52; +25%; +22%) for allele score 19-20, and 1.51 (1.22-1.86; +51%; +44%) for individuals with allele score 21-23. CONCLUSION: Higher triglycerides and remnant cholesterol were observationally and genetically associated with increased risk of aortic valve stenosis.