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Updated: Jul 31, 2025

Identifying Coronary Artery Calcification on Non-gated Computed Tomography Scans
Published on: August 28, 2018
HDL-cholesterol concentration and its association with coronary artery calcification: a systematic review and
Farshad Abedi1, Masoumeh Sadeghi2, Navid Omidkhoda1
1Department of Clinical Pharmacy, School of Pharmacy, Mashhad University of Medical Sciences, Mashhad, Iran.
Insights
High-density lipoprotein cholesterol (HDL-C) levels do not appear to protect against coronary artery calcification (CAC). This suggests HDL particle quality, not just quantity, may be crucial for preventing atherosclerosis.
Area of Science:
- Cardiovascular Medicine
- Biochemistry
- Epidemiology
Background:
- Coronary artery calcification (CAC) is a sensitive marker for coronary atherosclerosis.
- The relationship between high-density lipoprotein cholesterol (HDL-C) and CAC development is debated.
- Existing research presents conflicting findings on HDL-C's role in CAC progression.
Conclusions:
- This meta-analysis of observational data indicates that elevated HDL-C levels do not predict protection against coronary artery calcification.
- The findings suggest that the quality of HDL particles, rather than their concentration, may be more critical in atherogenesis and CAC development.
- Further research should focus on the functional aspects of HDL in cardiovascular health.
Background:
Coronary artery calcification (CAC) is a potential risk marker of coronary atherosclerosis that has high specificity and sensitivity. However, the association between high-density lipoprotein cholesterol (HDL-C) concentration and CAC incidence and progression is controversial.
Methods:
PubMed, Embase, Web of Science, and Scopus were systematically searched to identify relevant observational studies up to March 2023 and assessed the methodological quality using Newcastle-Ottawa Scale (NOS) scale. Random-effects meta-analysis was used to estimate pooled odds ratios (OR) and 95% confidence interval considering heterogeneity across studies.
Results:
Of the 2,411 records, 25 cross-sectional (n = 71,190) and 13 cohort (n = 25,442) studies were included in the systematic review. Ten cross-sectional and eight cohort studies were not eligible and were omitted from the meta-analysis. A total of 15 eligible cross-sectional studies (n = 33,913) were included in the meta-analysis and pooled results revealed no significant association between HDL-C and CAC > 0, CAC > 10, or CAC > 100 [pooled OR: 0.99 (0.97, 1.01)]. Meta-analysis of the 5 eligible prospective cohort studies (n = 10,721) revealed no significant protective effect of high HDL-C against CAC > 0 [pooled OR: 1.02 (0.93, 1.13)].
Conclusions:
According to this analysis of observational studies, high HDL-C levels were not found to predict protection against CAC. These results suggest HDL quality rather than HDL quantity is important for certain aspects of atherogenesis and CAC.
Registration Number:
CRD42021292077.
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