Comparison of LDL-Cholesterol Estimate using Various Formulae with Directly Measured LDL-Cholesterol in Indian Population

Introduction: Low-Density Lipoprotein Cholesterol (LDLc) is widely recognized as an established cardiovascular risk marker. Different formulae have been proposed for calculation of LDLc but have not been validated in Indian population and over a wide range of Triglycerides (TG). Friedewald formu...

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Main Authors: Nishtha Wadhwa, Radhika Krishnaswamy
Format: Article
Language:English
Published: JCDR Research and Publications Private Limited 2016-12-01
Series:Journal of Clinical and Diagnostic Research
Subjects:
Online Access:https://jcdr.net/articles/PDF/9018/22272_CE[Ra]_F(Sh)_PF1(PI_RK)_PFA(AK)_PF2(PAG).pdf
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author Nishtha Wadhwa
Radhika Krishnaswamy
author_facet Nishtha Wadhwa
Radhika Krishnaswamy
author_sort Nishtha Wadhwa
collection DOAJ
description Introduction: Low-Density Lipoprotein Cholesterol (LDLc) is widely recognized as an established cardiovascular risk marker. Different formulae have been proposed for calculation of LDLc but have not been validated in Indian population and over a wide range of Triglycerides (TG). Friedewald formula is most commonly used which has various shortcomings. Aim: To calculate LDLc using various formulae and compare it with directly measured LDLc at various ranges of TG concentration in Indian population. Materials and Methods: One year lipid profile data of 21,503 samples was taken. Calculation of LDLc was done by the following formulae: Friedewald; Cordova and Cordova; Vujovic; Ahmadi; Anandaraja; Puavillai and Hattori. Comparison of calculated LDLc with directly measured LDLc was done at following TG ranges: <150mg/dL; 151-199mg/dL; 200-399mg/ dL and >400mg/dL using Pearson’s correlation coefficient and two-paired t-test. Results: For TG range <150mg/dL, Puavillai formula correlated best with direct measurement (r = 0.978). For TG range 151-199mg/dL, Vujovic formula correlated best with direct measurement (r = 0.977and mean difference of -1.2 mg/dL). For TG range 200-399mg/dL, Vujovic formula correlated best with direct measurement (r = 0.968). For TG range >400 mg/ dL, Vujovic formula correlated best with direct measurement (r = 0.791). Conclusion: Vujovic formula appears to be more accurate than any other formula when applied to Indian population.
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spelling doaj.art-569945c0f1ce40ec982499785c005a592022-12-22T02:21:53ZengJCDR Research and Publications Private LimitedJournal of Clinical and Diagnostic Research2249-782X0973-709X2016-12-011012BC11BC1310.7860/JCDR/2016/22272.9018Comparison of LDL-Cholesterol Estimate using Various Formulae with Directly Measured LDL-Cholesterol in Indian PopulationNishtha Wadhwa0Radhika Krishnaswamy1Postgraduate, Department of Biochemistry, St. John’s Medical College, Sarjapur Road, Bangalore, Karnataka, India.Associate Professor, Department of Biochemistry, St. John’s Medical College, Sarjapur Road, Bangalore, Karnataka, India.Introduction: Low-Density Lipoprotein Cholesterol (LDLc) is widely recognized as an established cardiovascular risk marker. Different formulae have been proposed for calculation of LDLc but have not been validated in Indian population and over a wide range of Triglycerides (TG). Friedewald formula is most commonly used which has various shortcomings. Aim: To calculate LDLc using various formulae and compare it with directly measured LDLc at various ranges of TG concentration in Indian population. Materials and Methods: One year lipid profile data of 21,503 samples was taken. Calculation of LDLc was done by the following formulae: Friedewald; Cordova and Cordova; Vujovic; Ahmadi; Anandaraja; Puavillai and Hattori. Comparison of calculated LDLc with directly measured LDLc was done at following TG ranges: <150mg/dL; 151-199mg/dL; 200-399mg/ dL and >400mg/dL using Pearson’s correlation coefficient and two-paired t-test. Results: For TG range <150mg/dL, Puavillai formula correlated best with direct measurement (r = 0.978). For TG range 151-199mg/dL, Vujovic formula correlated best with direct measurement (r = 0.977and mean difference of -1.2 mg/dL). For TG range 200-399mg/dL, Vujovic formula correlated best with direct measurement (r = 0.968). For TG range >400 mg/ dL, Vujovic formula correlated best with direct measurement (r = 0.791). Conclusion: Vujovic formula appears to be more accurate than any other formula when applied to Indian population.https://jcdr.net/articles/PDF/9018/22272_CE[Ra]_F(Sh)_PF1(PI_RK)_PFA(AK)_PF2(PAG).pdfcardiovascular diseasedirect low-density lipoprotein cholesterolvujovic formula
spellingShingle Nishtha Wadhwa
Radhika Krishnaswamy
Comparison of LDL-Cholesterol Estimate using Various Formulae with Directly Measured LDL-Cholesterol in Indian Population
Journal of Clinical and Diagnostic Research
cardiovascular disease
direct low-density lipoprotein cholesterol
vujovic formula
title Comparison of LDL-Cholesterol Estimate using Various Formulae with Directly Measured LDL-Cholesterol in Indian Population
title_full Comparison of LDL-Cholesterol Estimate using Various Formulae with Directly Measured LDL-Cholesterol in Indian Population
title_fullStr Comparison of LDL-Cholesterol Estimate using Various Formulae with Directly Measured LDL-Cholesterol in Indian Population
title_full_unstemmed Comparison of LDL-Cholesterol Estimate using Various Formulae with Directly Measured LDL-Cholesterol in Indian Population
title_short Comparison of LDL-Cholesterol Estimate using Various Formulae with Directly Measured LDL-Cholesterol in Indian Population
title_sort comparison of ldl cholesterol estimate using various formulae with directly measured ldl cholesterol in indian population
topic cardiovascular disease
direct low-density lipoprotein cholesterol
vujovic formula
url https://jcdr.net/articles/PDF/9018/22272_CE[Ra]_F(Sh)_PF1(PI_RK)_PFA(AK)_PF2(PAG).pdf
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AT radhikakrishnaswamy comparisonofldlcholesterolestimateusingvariousformulaewithdirectlymeasuredldlcholesterolinindianpopulation