Comparison of different formulas used for LDL calculation

Authors

  • Ahmet Rifat Balik University of Health Sciences, Gülhane Training and Research Hospital, Department of Clinical Biochemistry
  • Cigdem Yucel Health Sciences University Gulhane Training and Research Hospital Medical Biochemistry Laboratory
  • Murat Kizilgun Health Sciences University Gulhane Training and Research Hospital Medical Biochemistry Laboratory

DOI:

https://doi.org/10.5281/zenodo.7151824

Keywords:

Cholesterol, Low-density lipoprotein, Triglyceride

Abstract

Aim: Elevated low-density lipoprotein cholesterol concentration in the blood is a well-defined atherogenic risk factor and it is highly predictive for Coronary Heart Disease. Therefore, the analysis of serum low-density lipoprotein cholesterol levels must be carried out in both accuartely and precisely. This study was designed to compare the results obtained with directly measured low-density lipoprotein cholesterol in our hospital and various formulas used to calculate low-density lipoprotein cholesterol.

Materials and Methods: 175 patients with directly measured low-density lipoprotein cholesterol results were included in the study. Patient results were divided into four groups based on their triglyceride values. low-density lipoprotein cholesterol values ​​were calculated using 11 different formulas by using the results of total cholesterol, triglyceride, and high-density lipoprotein cholesterol of the patients. For each patient group, directly measured low-density lipoprotein cholesterol and low-density lipoprotein cholesterol values ​​calculated with formulas were evaluated in terms of correlation.

Results: As a result, a single formula that was valid in all groups could not be determined, but instead, it was obvious that formulas that could be valid at different triglyceride levels came to the fore.

Conclusions: It seems that the best formula for low-density lipoprotein cholesterol estimation in the Turkish population is not yet available, but we think that different formulas can be preferred according to the triglyceride levels of the patients. In addition, it would be beneficial to develop a new formula by conducting new studies according to the Turkish population.

References

Cheng AY, Leiter LA. Implications of recent clinical trials for the National Cholesterol Education Program Adult Treatment Panel III guidelines. Curr Opin Cardiol. 2006;21(4):400–404.

Castelli WP, Garrison RJ, Wilson PW, Abbott RD, Kalousdian S, Kannel WB. Incidence of Coronary Heart Disease and Lipoprotein Cholesterol Levels. JAMA. 1986;256(20):2835–2838.

Expert Panel on Detection, Evaluation, and Treatment of High Blood Cholesterol in Adults. Executive Summary of the Third Report of the National Cholesterol Education Program (NCEP) Expert Panel on Detection, Evaluation, and Treatment of High Blood Cholesterol in Adults (Adult Treatment Panel III) JAMA. 2001;285(19):2486–2497.

Bachorick PS, Ross JW. National Cholesterol Education Program recommendations for measurement of low density lipoprotein cholesterol: executive summary. Clin Chem. 1995;41(10):1414–1420.

National cholesterol Education Program Working Group on Lipoprotein Measurement: Recommendations on Lipoprotein Measurement. NIH Publication No 95-3044, Bethesda, MD; 1995;31–34.

Bairaktari ET, Seferiadis KI, Elisaf MS. Evaluation of methods for the measurement of low-density lipoprotein cholesterol. J Cardiovasc Pharmacol Therapeut. 2005;10(1):45–54.

Nauck M, Warnick GR, Rifai N. Methods for measurement of LDL-cholesterol: a critical assessment of direct measurement by homogeneous assays versus calculation. Clin Chem. 2002;48(2):236–254.

Centers for Disease Control and Prevention. Cholesterol Reference Method Laboratory Network (CRMLN) [Internet] Atlanta (GA): Centers for Disease Control and Prevention; [cited 2015 October 14th]. Available from: http://www.cdc.gov/labstandards/crmln_clinical.html.

Sha MFR, Siddique AH, Saiedullah M, Khan MAH. Evaluation of recently developed regression equation with direct measurement of low-density Lipoprotein Cholesterol in a Bangladeshi population. J Enam Med Col. 2015;5(2):75–79.

Cordova CM, Cordova MM. A new accurate simple formula for LDL-cholesterol estimation based on directly measured lipids from a large cohort. Ann Clin Biochem. 2013;50(1):13–19.

Ahmadi SA, Boroumand MA, Gohari-Moghaddam K, Tajik P, Dibaj SM. The impact of low serum triglyceride on LDL-cholesterol estimation. Arch Iranian Med. 2008;11(3):318–321.

Gupta S, Verma M, Singh K. Does LDL-C estimation using Anandaraja’s Formula give a better agreement with direct LDL-C estimation than the Friedewald’s Formula? Ind J wClin Biochem. 2012;27(2):127–133.

Anandaraja S, Narang R, Godeswar R, Laksmy R, Talwar KK. Low density lipoprotein cholesterol estimation by a new formula in Indian population. Int J Cardiol. 2005;102(1):117–120.

Puavillai W, Laorugpongse D. Is calculated LDLc by using the new modified Friedewald equation better than the standard Frieldewald equation. J Med Assoc Thai. 2004;87(6):589–593.

Vujovic A, Kotur-Stevuljevic J, Spasic S, Bujisic N, Martinovic J, Vujovic M, et al. Evaluation of different formulas for LDLc calculation. Lipids Health Dis. 2010;9:27–35.

Chen Y, Zhang X, Pan B, Jin X, Yao H, Chen B, et al. A modified formula for calculating low-density lipoprotein cholesterol values. Lipids Health Dis. 2010;9:52.

DeLong DM , DeLong E R , Wood P D , Lippel K , Rifkind B M . A comparison of methods for the estimation of plasma low- and very low-density lipoprotein cholesterol. The Lipid Research Clinics Prevalence Study. JAMA. 1986;256(27):2372-2377.

Hattori Y, Suzuki M, Tsushima M, Yoshida M, Tokunaga Y, Wang Y, et al. Development of approximate formula for LDL-cholesterol, LDL-apo B and LDL-chol/LDL-apo B as indices of hyper apobetalipoproteinemia and small dense LDL. Atherosclerosis. 1998;138 (2):289–299.

Rao A, Parker AH, El-Sheroni NA, Babelly MM. Calculation of low-density lipoprotein cholesterol with use of triglyceride/cholesterol ratios in lipoproteins compared with other calculation methods. Clinical Chemistry. 1988;34(12):2532–2534.

Teerakanchana T, Puavilai W, Suriyaprom K, Tungtrongchitr R. Comparative study of LDL-cholesterol levels in Thai patients by the direct method and using the Friedewald formula. Southeast Asian. J Trop Med Public Health. 2007;38(3):519-527.

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Published

2022-10-06

How to Cite

Balik, A. R., Yucel, C., & Kizilgun, M. (2022). Comparison of different formulas used for LDL calculation. Journal of Social and Analytical Health, 2(3), 287–291. https://doi.org/10.5281/zenodo.7151824

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