使用不同的预测方程比较低密度脂蛋白胆固醇人口估计:国家健康和营养检查调查,2015-2018年
National health statistics reports
|February 17, 2026
概括
计算低密度脂蛋白胆固醇 (LDL-C) 的弗里德沃尔德,马丁和桑普森方程在美国成年人中显示了类似的结果. 这表明,方程的选择对人口层面的LDL-C估计的影响最小.
科学领域:
- 心血管诊断心血管诊断服务
- 生化分析 生化分析
- 流行病学 流行病学
背景情况:
- 自1972年以来使用的弗里德瓦尔德方程估计低密度脂蛋白胆固醇 (LDL-C),但对三糖水平的准确性有局限性.
- 较新的方程,马丁 (2013年,延长至2021年) 和桑普森 (2020年),在更广泛的甘油三水平中提供了更好的准确性.
- 选择的LDL-C计算方法可以影响临床管理和人口健康估计.
研究的目的:
- 为了比较使用弗里德沃尔德,马丁和桑普森方程在美国成年人群中的LDL-C计算.
- 评估不同的LDL-C方程对临床切断点的分类的影响.
- 在全国代表性样本中评估这些方程之间的一致性.
主要方法:
- 利用了4461名成年人的数据 (2015-2018年国家健康和营养检查调查).
- 通过使用跨人口子组的kappa统计数据,评估了对LDL-C类别的分类协议.
- 进行了对马丁和桑普森方程的灵敏度分析,其中甘油三含量<800 mg/dL.
主要成果:
- 在20岁以上的成年人中,在三个方程中,LDL-C分布在人口水平上是相似的.
- 对LDL-C<70 mg/dL的流行率估计在9.8%至10.0%之间.
- 对LDL-C>190 mg/dL的患病率估计在所有方程中低于3%,在各个子组中观察到非常好的一致性 (kappa>0.8).
结论:
- 弗里德沃尔德,马丁和桑普森方程给出了可比的美国人口水平的LDL-C分布.
- 选择LDL-C计算方程对成年人的国家估计影响很小.
- 这些发现支持LDL-C分类在大型研究中的不同计算方法中的一致性.
相关概念视频
Drug Dosing in Renal Diseases: Estimation of Glomerular Filtration Rate Based on Serum Creatinine Concentration
248
Glomerular filtration rate (GFR) can be estimated from serum creatinine using the modification of diet in renal disease (MDRD) formula or the chronic kidney disease–epidemiology collaboration (CKD–EPI) equation. Both methods are widely used in clinical practice to assess kidney function and guide treatment decisions.The MDRD equation does not require weight or height measurements and is normalized to the body surface area of 1.73 m², considered the average adult surface area.
248
Analysis of Population Pharmacokinetic Data
829
Analysis of population pharmacokinetic data involves studying the behavior of drugs within diverse populations to understand their pharmacokinetic parameters. Traditional pharmacokinetic methods typically involve collecting samples from a few individuals and estimating these parameters. While these methods are commonly used, they have limitations in capturing the variability in drug response among individuals or heterogeneous populations. Population pharmacokinetics is employed to address these...
829
Lipid-derived Compounds in the Human Body
7.0K
Fats and lipids are crucial components in the human body. Some lipid-derived compounds, such as fat-soluble vitamins, eicosanoids, lipoproteins, and glycolipids, also play unique roles to support various biological processes .
Fat-soluble Vitamins
Fat-soluble vitamins, including vitamins A, D, E, and K, are required in minimal quantities, but their deficiencies can lead to severely abnormal physiological conditions. For example, vitamin A deficiency can cause night blindness, dry skin,...
Fat-soluble Vitamins
Fat-soluble vitamins, including vitamins A, D, E, and K, are required in minimal quantities, but their deficiencies can lead to severely abnormal physiological conditions. For example, vitamin A deficiency can cause night blindness, dry skin,...
7.0K
Blood Studies for Cardiovascular System III: Serum Lipid Profile
653
Understanding serum lipids is crucial for maintaining cardiovascular health and preventing heart disease and stroke.
Serum lipids are fats and fatty substances in the blood and are crucial for various bodily functions, including energy storage, cellular structure, and hormone production. Serum lipids consist of cholesterol, triglycerides, and phospholipids.
Cholesterol is a soft, fat-like substance found in all body cells. It is crucial for producing hormones, vitamin D, and substances that aid...
Serum lipids are fats and fatty substances in the blood and are crucial for various bodily functions, including energy storage, cellular structure, and hormone production. Serum lipids consist of cholesterol, triglycerides, and phospholipids.
Cholesterol is a soft, fat-like substance found in all body cells. It is crucial for producing hormones, vitamin D, and substances that aid...
653
Lipids: Dietary Sources and Requirements
2.2K
Lipids are an essential component of a balanced human diet. Triglycerides, which make up the majority of dietary lipids, are found in both saturated fats—commonly present in meat, dairy products, and certain tropical plants like coconut, and hydrogenated oils such as margarine and baking shortenings (trans fats)—and unsaturated fats, which are abundant in seeds, nuts, olive oil, and most vegetable oils. The main sources of cholesterol include egg yolks, various meats and organ...
2.2K
Confidence Interval for Estimating Population Mean
9.0K
A point estimate of the population mean is obtained from a single sample. Such a point estimate does not represent a population well because it needs to account for variability in the population. Single point estimate can also be biased despite the sample being selected randomly. Thus, a point estimate is often unreliable. A confidence interval is needed to reduce this unreliability.
A confidence interval for the mean is a range of values that provides an estimate of the population mean. As the...
A confidence interval for the mean is a range of values that provides an estimate of the population mean. As the...
9.0K


