Age-related trends in lipid levels: a large-scale cross-sectional study of the general Chinese population

Objectives This study aimed to investigate the dynamic trends in total cholesterol (TC), triglyceride (TG), high-density lipoprotein cholesterol (HDL-C) and low-density lipoprotein cholesterol (LDL-C) levels with ageing.Design A Chinese population-based cross-sectional study.Setting A physical exami...

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Main Authors: Ying Zhu, Ying Li, Xuan Luo, Shiyan Nian, Zongwu Tong, Chunting Zhang, Xuejing Bai, Mengna Wu, Zefeng Yan
Format: Article
Language:English
Published: BMJ Publishing Group 2020-03-01
Series:BMJ Open
Online Access:https://bmjopen.bmj.com/content/10/3/e034226.full
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author Ying Zhu
Ying Li
Xuan Luo
Shiyan Nian
Zongwu Tong
Chunting Zhang
Xuejing Bai
Mengna Wu
Zefeng Yan
author_facet Ying Zhu
Ying Li
Xuan Luo
Shiyan Nian
Zongwu Tong
Chunting Zhang
Xuejing Bai
Mengna Wu
Zefeng Yan
author_sort Ying Zhu
collection DOAJ
description Objectives This study aimed to investigate the dynamic trends in total cholesterol (TC), triglyceride (TG), high-density lipoprotein cholesterol (HDL-C) and low-density lipoprotein cholesterol (LDL-C) levels with ageing.Design A Chinese population-based cross-sectional study.Setting A physical examination centre of a general hospital.Participants Adult subjects (178 167: 103 461 men and 74 706 women) without a known medical history or treatments that affect lipid metabolism.Main outcome measures Dynamic trends in the above-mentioned lipid parameters with ageing were explored; turning points of age were established using age stratification and validated by fitted multivariate linear regression modelling.Results Age was found to be an independent factor extensively associated with lipid levels in both sexes when adjusted for serum glucose, body mass index, lifestyle, drinking and smoking. Age was positively associated with TC, logarithm-transformed TG (LnTG) and LDL-C levels in men ≤40, ≤40 and ≤60 years old (yo) and in women ≤60, ≤70 and ≤60 yo, respectively. Conversely, age correlated negatively with TC, LnTG and LDL-C levels in men ≥61, ≥41 and ≥61 yo and in women ≥61, ≥71 and ≥61 yo, respectively. TC, TG and LDL-C levels in women were initially lower than those in men but surpassed those in men in 51–55, 61–65 and 51–55 yo age groups. The trends in HDL-C levels with age were relatively irregular, although HDL-C levels in women were higher than in men for all age groups.Conclusions The definition of dyslipidaemia, the atherosclerotic cardiovascular disease risk assessment and the initiation/goals of statin therapy should fully consider age-related trends in lipid levels and sex differences.
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spelling doaj-art-451fc32c2e9641a3829bec6a51c496bb2025-08-20T02:20:36ZengBMJ Publishing GroupBMJ Open2044-60552020-03-0110310.1136/bmjopen-2019-034226Age-related trends in lipid levels: a large-scale cross-sectional study of the general Chinese populationYing Zhu0Ying Li1Xuan Luo2Shiyan Nian3Zongwu Tong4Chunting Zhang5Xuejing Bai6Mengna Wu7Zefeng Yan8Department of Laboratory, People’s Hospital of Yuxi City, Yuxi, ChinaAcupuncture and Tuina School, Chengdu University of Traditional Chinese Medicine, Chengdu, ChinaGuangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Sun Yat-sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, Guangdong, ChinaDepartment of Critical Care Medicine, People’s Hospital of Yuxi City, Yuxi, ChinaDepartment of Nephrology, People’s Hospital of Yuxi City, Yuxi, ChinaDepartment of Laboratory, People’s Hospital of Yuxi City, Yuxi, ChinaDepartment of Laboratory, Sixth Affiliated Hospital of Kunming Medical University, Yuxi, Yunnan, ChinaDepartment of Laboratory, Sixth Affiliated Hospital of Kunming Medical University, Yuxi, Yunnan, ChinaDepartment of Laboratory, Sixth Affiliated Hospital of Kunming Medical University, Yuxi, Yunnan, ChinaObjectives This study aimed to investigate the dynamic trends in total cholesterol (TC), triglyceride (TG), high-density lipoprotein cholesterol (HDL-C) and low-density lipoprotein cholesterol (LDL-C) levels with ageing.Design A Chinese population-based cross-sectional study.Setting A physical examination centre of a general hospital.Participants Adult subjects (178 167: 103 461 men and 74 706 women) without a known medical history or treatments that affect lipid metabolism.Main outcome measures Dynamic trends in the above-mentioned lipid parameters with ageing were explored; turning points of age were established using age stratification and validated by fitted multivariate linear regression modelling.Results Age was found to be an independent factor extensively associated with lipid levels in both sexes when adjusted for serum glucose, body mass index, lifestyle, drinking and smoking. Age was positively associated with TC, logarithm-transformed TG (LnTG) and LDL-C levels in men ≤40, ≤40 and ≤60 years old (yo) and in women ≤60, ≤70 and ≤60 yo, respectively. Conversely, age correlated negatively with TC, LnTG and LDL-C levels in men ≥61, ≥41 and ≥61 yo and in women ≥61, ≥71 and ≥61 yo, respectively. TC, TG and LDL-C levels in women were initially lower than those in men but surpassed those in men in 51–55, 61–65 and 51–55 yo age groups. The trends in HDL-C levels with age were relatively irregular, although HDL-C levels in women were higher than in men for all age groups.Conclusions The definition of dyslipidaemia, the atherosclerotic cardiovascular disease risk assessment and the initiation/goals of statin therapy should fully consider age-related trends in lipid levels and sex differences.https://bmjopen.bmj.com/content/10/3/e034226.full
spellingShingle Ying Zhu
Ying Li
Xuan Luo
Shiyan Nian
Zongwu Tong
Chunting Zhang
Xuejing Bai
Mengna Wu
Zefeng Yan
Age-related trends in lipid levels: a large-scale cross-sectional study of the general Chinese population
BMJ Open
title Age-related trends in lipid levels: a large-scale cross-sectional study of the general Chinese population
title_full Age-related trends in lipid levels: a large-scale cross-sectional study of the general Chinese population
title_fullStr Age-related trends in lipid levels: a large-scale cross-sectional study of the general Chinese population
title_full_unstemmed Age-related trends in lipid levels: a large-scale cross-sectional study of the general Chinese population
title_short Age-related trends in lipid levels: a large-scale cross-sectional study of the general Chinese population
title_sort age related trends in lipid levels a large scale cross sectional study of the general chinese population
url https://bmjopen.bmj.com/content/10/3/e034226.full
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