心血管结果和血脂水平在身体质量指数的变化类别:ARIC研究
Tianyu Xu1,2, Chang Chen1,2, De-Wei An3,4
1Department of Cardiology, The First Affiliated Hospital of Sun Yat-Sen University, Guangzhou, Guangdong, China.
Journal of nutrition and metabolism
|July 24, 2025
概括
总胆固醇 (TC) 和低密度脂蛋白胆固醇 (LDL-C) 的高变化与心血管风险增加有关,特别是在肥胖的人群中. 脂质变异性测量显著改善肥胖患者的心力衰竭风险预测.
科学领域:
- 心血管医学 心血管医学
- 代谢障碍 代谢障碍 代谢障碍
- 生物统计学 生物统计学
背景情况:
- 肥胖是心血管疾病和脂质失调的主要危险因素.
- 脂质水平及其可变性可能在心血管风险分层中发挥关键作用.
研究的目的:
- 研究脂质变化 (总胆固醇[TC]和低密度脂蛋白胆固醇[LDL-C]) 与心血管结果 (心力衰竭[HF],心肌梗塞[MI],死亡率) 之间的关联.
- 为了检查这些协会在不同的体重指数 (BMI) 类别,包括肥胖.
- 为了确定脂质变化是否能比传统的风险因素更好地预测心血管风险.
主要方法:
- 分析了来自社区动脉样硬化风险研究 (ARIC) 的6689名参与者,其中至少有三次TC和LDL-C测量.
- 考克斯回归模型用于计算与脂质可变性 (SD和VIM) 相关的心血管结果的危险比率 (HR).
- 对脂质可变性指标的增量预测值的评估,当添加到传统的心血管风险模型时.
主要成果:
- 增加的TC和LDL-C可变性与超重和肥胖类别 (I,II和III) 的高风险显著相关.
- 较高的TC和LDL-C可变性与肥胖类I和II中心脏病和死亡率增加的风险有关.
- 将TC-VIM和LDL-C-VIM纳入风险模型显著改善了HF风险预测,显示出明显的净重新分类改善 (TC-VIM8.95%,LDL-C-VIM8.09%).
结论:
- 升高的TC和LDL-C可变性与心血管结果的风险更高有关,特别是在肥胖的人群中.
- 脂质变异性是管理与肥胖相关的脂质不良症的一个重要因素.
- 脂质可变度指标为增强心血管风险预测模型,特别是心力衰竭提供了显著的潜力.
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