Synapse
⌘+K
Synapse
PulseExploreClubsResearchersJournals
Instagram
HomeClubsExplore
December 23, 2024Frontiers in Cardiovascular MedicineOpen Access

A non-linear association of low-density lipoprotein cholesterol with all-cause and cardiovascular mortality among patients with hypertension

View Full Paper
Ask AI
Bookmark
Share

Key result

Lowest LDL-C linked to ~20% higher all-cause mortality vs moderate levels in hypertensive adults.

  • HR 1.196
  • 95% CI 1.051-1.361
  • P=0.0068
  • n=9,635

Why the study?

Although studies have examined the correlation between LDL-C and mortality, no study had explored these associations specifically in hypertensive populations.

Does low-density lipoprotein cholesterol (LDL-C) level affect all-cause and cardiovascular mortality in adults with hypertension?

Population

9,635 hypertensive participants aged ≥18 years from NHANES 1999–2018

Comparison

Different levels of LDL-C

Design

Cohort study

Follow-up

Median 98 months

Authors

GLGuoliang LiangWZWenhao ZhangXGXinxin Gu

Discussion

Loading...

Member takes

Overview

In patients with hypertension, there is a non-linear association between LDL-C levels and mortality, suggesting that very low LDL-C levels (<2.198 mmol/L) may be associated with an increased risk of all-cause and cardiovascular mortality.

Study Design

Type

Cohort (n=9,635)

Structured PICO

Does low-density lipoprotein cholesterol (LDL-C) level affect all-cause and cardiovascular mortality in adults with hypertension?

P
Population
9,635 adults with hypertension from the NHANES 1999-2018 cohort, followed for a median of 98 months to assess the association between LDL-C levels and mortality.
E
Exposure
Low-density lipoprotein cholesterol (LDL-C) levels (observational exposure)
C
Comparator
Medium level of LDL-C (Q3: 2.689–3.155 mmol/L) used as the reference group
O
Outcome
All-cause mortality and cardiovascular mortalityhard clinical

Main Result

Hazard Ratio: 1.196 (95% CI 1.051–1.361)

Absolute Event Rate: 26.7% vs 23.4%

p-value: p=0.0068

In patients with hypertension, there is a non-linear association between LDL-C levels and mortality, suggesting that very low LDL-C levels (<2.198 mmol/L) may be associated with an increased risk of all-cause and cardiovascular mortality.

Limitations

  • Population only living in the United States
  • Recall bias for subjective variables like smoking status and medicine use
  • Did not consider changes in LDL-C concentration over time or changes influenced by lipid-lowering treatment
  • Observational nature means causality cannot be definitively established
  • Population limited to the United States, may not apply to other countries or ethnicities
  • Recall bias for self-reported variables like smoking status and medicine use
  • Did not consider changes in LDL-C concentration over time or changes influenced by the initiation or cessation of lipid-lowering treatment
  • Observational nature cannot definitively establish causality

Cite This Study

Liang et al. (2024) conducted a cohort in Hypertension (n=9,635). Low-density lipoprotein cholesterol (LDL-C) levels vs. Moderate LDL-C levels (2.689-3.155 mmol/L) was evaluated on All-cause mortality (HR 1.196, 95% CI 1.051-1.361, p=0.0068). In adults with hypertension, the lowest levels of LDL-C (<2.198 mmol/L) were associated with a 19.6% increased risk of all-cause mortality (HR 1.196) compared to moderate levels.

synapsesocial.com/papers/6a21099264f64d4eda3303b4https://doi.org/10.3389/fcvm.2024.1469848
View Full Paper
Ask AI
Bookmark
Share

Also Consider

Synapse has enriched 5 closely related papers on similar clinical questions. Consider them for comparative context:

  1. 1Low‐Density Lipoprotein Cholesterol and Mortality in Older People2005 · 82 citations
  2. 2The association between atherogenic index of plasma and all-cause mortality and cardiovascular disease-specific mortality in hypertension patients: a retrospective cohort study of NHANES2023 · 78 citations
  3. 3Association between blood pressure and serum lipids in a population. The Tromsø Study.1991 · 225 citations
  4. 42018 AHA/ACC/AACVPR/AAPA/ABC/ACPM/ADA/AGS/APhA/ASPC/NLA/PCNA Guideline on the Management of Blood Cholesterol: A Report of the American College of Cardiology/American Heart Association Task Force on Clinical Practice Guidelines2019 · 6,261 citations
  5. 5Serum Cholesterol Levels as a Measure of Frailty in Elderly Patients1998 · 82 citations