Highlights
- •Changes in lipids would increase the predictive value of conventional risk factors.
- •Changes in lipids except triglyceride are related to myocardial infarction risk.
- •Early detection and control of lipids is also beneficial for young people.
Abstract
Background and aims
Although serum lipids are widely accepted as independent predictors of myocardial
infarction (MI), there is insufficient evidence for associations of changes in lipid
levels with MI. The present study aimed at investigating the associations between
changes in lipids and incidence of MI in people without lipid-lowering therapy.
Methods
64,031 Chinese participants (mean age: 53.42 ± 11.95 years) without previous MI were
enrolled in the study. The participants were divided into four categories based on
quartiles of lipid changes. Multivariable Cox regression models were used to calculate
hazard ratios (HRs) and 95% confidence intervals (CIs) for MI.
Results
During a median follow-up of 7.03 years, 599 individuals developed MI. After adjustment
for covariates, increased total cholesterol (TC), increased low-density lipoprotein
cholesterol (LDL-C), increased non-high-density lipoprotein cholesterol (non-HDL-C),
and decreased high-density lipoprotein cholesterol (HDL-C) were associated with elevated
risk of MI, with HRs (95% CIs) in the highest quartile group compared with the lowest
quartile group of 1.56 (1.21–2.01), 1.96 (1.49–2.57), 1.95 (1.52–2.50), and 0.69 (0.53–0.90),
respectively. However, changes in triglyceride (TG) were not associated with MI risk
(p = 0.8030).
Conclusions
Changes in levels of TC, LDL-C, non-HDL-C, and HDL-C, but not TG, were associated
with risk of MI. Early detection and control of lipid levels may be beneficial and
necessary for young people and those with healthy lipid levels at baseline.
Graphical abstract

Graphical Abstract
Keywords
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Article Info
Publication History
Published online: April 02, 2020
Accepted:
March 27,
2020
Received in revised form:
February 22,
2020
Received:
November 6,
2019
Identification
Copyright
© 2020 Elsevier B.V. All rights reserved.