Aortic & peripheral vascular disease

Elevated Remnant and Low-density Lipoprotein (LDL) Cholesterol and the Risk of Peripheral Artery Disease: A Mendelian Randomization Study

J Am Coll CardiolPublished Mendelian randomisation study

Authors' conclusion

Elevated remnant cholesterol had a causal effect on risk of PAD even after accounting for elevated LDL cholesterol, whereas most of the causal effect of elevated LDL cholesterol on risk of PAD was dependent on simultaneously elevated remnant cholesterol.

Study context

Population
Peripheral artery disease (PAD) (38,414 cases, 758,308 controls) and coronary artery disease (CAD) (221,445 cases, 770,615 controls)
Comparison
Genetically higher remnant cholesterol vs genetically higher LDL-C
Outcome
OR for PAD per 1 mmol/L (39 mg/dL) higher remnant cholesterol and LDL-C
Methodological detailsunivariable and multivariable Mendelian randomization, UK Biobank genome-wide association study
  • Univariable and multivariable Mendelian randomization
  • UK Biobank genome-wide association study

Main finding

As reported in the abstract

PAD per 1 mmol/L higher cholesterol
Odds ratio (95% CI)
Remnant cholesterolunivariable
2.72(2.10–3.52)
LDL-Cunivariable
1.37(1.25–1.51)
Remnant cholesterolmultivariable
2.16(1.49–3.12)
LDL-Cmultivariable
1.14(1.00–1.30)

Per 1 mmol/L higher cholesterol, as printed

Further findings

OutcomeOR (95% CI)
CAD per 1 mmol/L higher cholesterolRemnant cholesterol · univariable2.92 (2.34–3.64)
CAD per 1 mmol/L higher cholesterolLDL-C · univariable1.67 (1.56–1.79)
CAD per 1 mmol/L higher cholesterolRemnant cholesterol · multivariable1.86 (1.39–2.47)
CAD per 1 mmol/L higher cholesterolLDL-C · multivariable1.44 (1.29–1.60)
PAD per 1 SD higher cholesterolRemnant cholesterol · univariable1.37 (1.27–1.49)
PAD per 1 SD higher cholesterolLDL-C · univariable1.29 (1.20–1.39)
PAD per 1 SD higher cholesterolRemnant cholesterol · multivariable1.28 (1.14–1.43)
PAD per 1 SD higher cholesterolLDL-C · multivariable1.11 (1.00–1.23)
CAD per 1 SD higher cholesterolRemnant cholesterol · univariable1.40 (1.31–1.51)
CAD per 1 SD higher cholesterolLDL-C · univariable1.51 (1.43–1.59)
CAD per 1 SD higher cholesterolRemnant cholesterol · multivariable1.22 (1.11–1.33)
CAD per 1 SD higher cholesterolLDL-C · multivariable1.34 (1.23–1.46)

Original publication

Elevated Remnant and LDL Cholesterol and the Risk of Peripheral Artery Disease: A Mendelian Randomization Study. J Am Coll Cardiol. Published 1 April 2025. doi:10.1016/j.jacc.2024.12.033

Summarised from the published abstract; every number is checked against it

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