Low-density lipoprotein cholesterol predicts coronary artery calcification events in patients with type 2 diabetes: a longitudinal study

Abstract Background Coronary Artery Calcification (CAC) is a major risk factor for various cardiovascular diseases. Low-Density Lipoprotein Cholesterol (LDL-C) is a significant factor in atherosclerotic cardiovascular diseases and is usually elevated in patients with Type 2 Diabetes Mellitus (T2DM)....

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Main Authors: Zhi Zou, Yongbing Sun, Lijun Zou, Yang Zhou, Xinbei Lin, Jing Zhou, Zhonglin Li, Xiaoling Wu, Ling Wang, Xiaodong Li, Yong Wang, Yangxi Hu, Fengli Li, Jiancheng Zhang, Yongli Li
Format: Article
Language:English
Published: BMC 2025-02-01
Series:Diabetology & Metabolic Syndrome
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Online Access:https://doi.org/10.1186/s13098-025-01625-8
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author Zhi Zou
Yongbing Sun
Lijun Zou
Yang Zhou
Xinbei Lin
Jing Zhou
Zhonglin Li
Xiaoling Wu
Ling Wang
Xiaodong Li
Yong Wang
Yangxi Hu
Fengli Li
Jiancheng Zhang
Yongli Li
author_facet Zhi Zou
Yongbing Sun
Lijun Zou
Yang Zhou
Xinbei Lin
Jing Zhou
Zhonglin Li
Xiaoling Wu
Ling Wang
Xiaodong Li
Yong Wang
Yangxi Hu
Fengli Li
Jiancheng Zhang
Yongli Li
author_sort Zhi Zou
collection DOAJ
description Abstract Background Coronary Artery Calcification (CAC) is a major risk factor for various cardiovascular diseases. Low-Density Lipoprotein Cholesterol (LDL-C) is a significant factor in atherosclerotic cardiovascular diseases and is usually elevated in patients with Type 2 Diabetes Mellitus (T2DM). However, the association between LDL-C levels and incident CAC in asymptomatic T2DM patients remains unclear. Methods This study is a single-center retrospective cohort study conducted from January 2018 to December 2023, including 2,631 asymptomatic T2DM patients who underwent regular health screenings. All participants were confirmed to be free of CAC at baseline by computed tomography (CT). Based on baseline LDL-C levels, participants were divided into three groups (T1: 0.66–2.43 mmol/L; T2: 2.44–3.18 mmol/L; T3: 3.19–7.21 mmol/L). The follow-up endpoint was the occurrence of incident CAC, with a total follow-up period of 72 months. Kaplan-Meier survival curves were used for analysis, followed by log-rank tests. Univariate and multivariate Cox proportional hazards regression models were employed to investigate the relationship between LDL-C and incident CAC, and subgroup analysis was performed to test the robustness of the LDL-C and CAC relationship. Results During a median follow-up period of 29.9 months, 885 (33.64%) participants developed incident CAC occurred. The cumulative incidence of incident CAC increased progressively with higher LDL-C levels (log-rank test, P < 0.001). After adjusting for confounding factors, multivariable Cox proportional hazards regression results showed a significant association between LDL-C and incident CAC (hazard ratio [HR], 1.77; 95% confidence interval [CI], 1.64–1.92). When LDL-C was treated as a categorical variable, elevated levels in T2 (adjusted HR, 1.62; 95% CI, 1.36–1.93; P < 0.001) and T3 (adjusted HR, 3.38; 95% CI, 2.84–4.03; P < 0.001) were significantly associated with the risk of incident CAC. Additionally, subgroup analysis demonstrated a consistent association between LDL-C and incident CAC. Conclusion High LDL-C levels are associated with incident CAC in asymptomatic T2DM patients, suggesting that LDL-C may be useful for risk stratification in this population.
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spelling doaj-art-cd12dcd255e942d3856bc53342dc195c2025-08-20T02:13:10ZengBMCDiabetology & Metabolic Syndrome1758-59962025-02-011711910.1186/s13098-025-01625-8Low-density lipoprotein cholesterol predicts coronary artery calcification events in patients with type 2 diabetes: a longitudinal studyZhi Zou0Yongbing Sun1Lijun Zou2Yang Zhou3Xinbei Lin4Jing Zhou5Zhonglin Li6Xiaoling Wu7Ling Wang8Xiaodong Li9Yong Wang10Yangxi Hu11Fengli Li12Jiancheng Zhang13Yongli Li14Henan Provincial People’s Hospital, People’s Hospital of Zhengzhou UniversityHenan Provincial People’s Hospital, People’s Hospital of Zhengzhou UniversityThe First Affiliated Hospital of Zhengzhou UniversityHenan Provincial People’s Hospital, People’s Hospital of Zhengzhou UniversityHenan Provincial People’s Hospital, People’s Hospital of Zhengzhou UniversityHenan Provincial Research Center of Clinical Medicine of Nephropathy, Henan Provincial People’s Hospital, Zhengzhou University People’s Hospital, Henan University People’s HospitalHenan Provincial People’s Hospital, People’s Hospital of Zhengzhou UniversityDepartment of Nuclear Medicine, Henan Provincial People’s HospitalHenan Provincial People’s Hospital, People’s Hospital of Zhengzhou UniversityHenan Provincial People’s Hospital, People’s Hospital of Zhengzhou UniversityHenan Provincial People’s HospitalCentral Hospital of Zhengzhou UniversityCentral Hospital of Zhengzhou UniversityDepartment of Gastrointestinal Surgery, Henan Provincial People’s HospitalDepartment of Health Management, Chronic Health Management Laboratory, Henan Provincial People’s Hospital, People’s Hospital of Zhengzhou UniversityAbstract Background Coronary Artery Calcification (CAC) is a major risk factor for various cardiovascular diseases. Low-Density Lipoprotein Cholesterol (LDL-C) is a significant factor in atherosclerotic cardiovascular diseases and is usually elevated in patients with Type 2 Diabetes Mellitus (T2DM). However, the association between LDL-C levels and incident CAC in asymptomatic T2DM patients remains unclear. Methods This study is a single-center retrospective cohort study conducted from January 2018 to December 2023, including 2,631 asymptomatic T2DM patients who underwent regular health screenings. All participants were confirmed to be free of CAC at baseline by computed tomography (CT). Based on baseline LDL-C levels, participants were divided into three groups (T1: 0.66–2.43 mmol/L; T2: 2.44–3.18 mmol/L; T3: 3.19–7.21 mmol/L). The follow-up endpoint was the occurrence of incident CAC, with a total follow-up period of 72 months. Kaplan-Meier survival curves were used for analysis, followed by log-rank tests. Univariate and multivariate Cox proportional hazards regression models were employed to investigate the relationship between LDL-C and incident CAC, and subgroup analysis was performed to test the robustness of the LDL-C and CAC relationship. Results During a median follow-up period of 29.9 months, 885 (33.64%) participants developed incident CAC occurred. The cumulative incidence of incident CAC increased progressively with higher LDL-C levels (log-rank test, P < 0.001). After adjusting for confounding factors, multivariable Cox proportional hazards regression results showed a significant association between LDL-C and incident CAC (hazard ratio [HR], 1.77; 95% confidence interval [CI], 1.64–1.92). When LDL-C was treated as a categorical variable, elevated levels in T2 (adjusted HR, 1.62; 95% CI, 1.36–1.93; P < 0.001) and T3 (adjusted HR, 3.38; 95% CI, 2.84–4.03; P < 0.001) were significantly associated with the risk of incident CAC. Additionally, subgroup analysis demonstrated a consistent association between LDL-C and incident CAC. Conclusion High LDL-C levels are associated with incident CAC in asymptomatic T2DM patients, suggesting that LDL-C may be useful for risk stratification in this population.https://doi.org/10.1186/s13098-025-01625-8Coronary artery calcificationLow-density lipoprotein cholesterolType 2 diabetes mellitusKaplan-Meier survival curves
spellingShingle Zhi Zou
Yongbing Sun
Lijun Zou
Yang Zhou
Xinbei Lin
Jing Zhou
Zhonglin Li
Xiaoling Wu
Ling Wang
Xiaodong Li
Yong Wang
Yangxi Hu
Fengli Li
Jiancheng Zhang
Yongli Li
Low-density lipoprotein cholesterol predicts coronary artery calcification events in patients with type 2 diabetes: a longitudinal study
Diabetology & Metabolic Syndrome
Coronary artery calcification
Low-density lipoprotein cholesterol
Type 2 diabetes mellitus
Kaplan-Meier survival curves
title Low-density lipoprotein cholesterol predicts coronary artery calcification events in patients with type 2 diabetes: a longitudinal study
title_full Low-density lipoprotein cholesterol predicts coronary artery calcification events in patients with type 2 diabetes: a longitudinal study
title_fullStr Low-density lipoprotein cholesterol predicts coronary artery calcification events in patients with type 2 diabetes: a longitudinal study
title_full_unstemmed Low-density lipoprotein cholesterol predicts coronary artery calcification events in patients with type 2 diabetes: a longitudinal study
title_short Low-density lipoprotein cholesterol predicts coronary artery calcification events in patients with type 2 diabetes: a longitudinal study
title_sort low density lipoprotein cholesterol predicts coronary artery calcification events in patients with type 2 diabetes a longitudinal study
topic Coronary artery calcification
Low-density lipoprotein cholesterol
Type 2 diabetes mellitus
Kaplan-Meier survival curves
url https://doi.org/10.1186/s13098-025-01625-8
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