<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE article PUBLIC "-//NLM//DTD JATS (Z39.96) Journal Publishing DTD v1.3 20210610//EN" "JATS-journalpublishing1-3.dtd">
<article article-type="research-article" dtd-version="1.3" xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xml:lang="ru"><front><journal-meta><journal-id journal-id-type="publisher-id">cardio</journal-id><journal-title-group><journal-title xml:lang="ru">Кардиология</journal-title><trans-title-group xml:lang="en"><trans-title>Kardiologiia</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">0022-9040</issn><issn pub-type="epub">2412-5660</issn><publisher><publisher-name>Kardiomag</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.18087/cardio.2026.7.n3192</article-id><article-id custom-type="elpub" pub-id-type="custom">cardio-3192</article-id><article-categories><subj-group subj-group-type="heading"><subject>Research Article</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="ru"><subject>ОРИГИНАЛЬНЫЕ СТАТЬИ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>RESEARCH ARTICLES</subject></subj-group></article-categories><title-group><article-title>Разработка модели и формулы для оценки эффективности гиполипидемической терапии по уровню общего холестерина в Российской Федерации</article-title><trans-title-group xml:lang="en"><trans-title>Development of a Model and a Formula for Assessing the Effectiveness of Lipid­Lowering Therapy Based on Total Cholesterol Levels in the Russian Federation</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-6998-8406</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Бойцов</surname><given-names>С. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Boi︠t︡sov</surname><given-names>S. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p> профессор, д.м.н., академик РАН, Генеральный директор</p></bio><bio xml:lang="en"><p>Academician of the Russian Academy of Sciences, Professor, Doctor of Medical Sciences, general Director of the Federal State Budgetary Institution "National Medical Research Center of Cardiology named after Academician E.I. Chazov", Ministry of Health of Russia</p></bio><email xlink:type="simple">gendirector@cardio.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-1518-6552</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Ежов</surname><given-names>М. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Ezhov</surname><given-names>M. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Главный научный сотрудник лаборатории нарушений липидного обмена,  д.м.н.</p></bio><bio xml:lang="en"><p>Chief Researcher of the Laboratory of Lipid Metabolism Disorders at the Federal State Budgetary Institution "National Medical Research Center of Cardiology named after Academician E.I. Chazov", Doctor of Medical Sciences</p></bio><email xlink:type="simple">marat_ezhov@mail.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-3505-2487</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Тюрина</surname><given-names>А. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Tyurina</surname><given-names>A. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Научный сотрудник лаборатории нарушений липидного обмена, к.м.н.</p></bio><bio xml:lang="en"><p>Researcher at the Laboratory of Lipid Metabolism Disorders of the Federal State Budgetary Institution "National Medical Research Center of Cardiology named after Academician E.I. Chazov", Candidate of Medical Sciences</p></bio><email xlink:type="simple">alex.tyurina.cardio@yandex.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-4500-0904</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Гомыранова</surname><given-names>Н. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Gomyranova</surname><given-names>N. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Руководитель банка биологического материала, заведующая Отделением клинической лабораторной диагностики, врач клинической лабораторной диагностики, к.м.н.</p></bio><bio xml:lang="en"><p>Head of the Biological Material Bank, Head of the Department of Clinical Laboratory Diagnostics, Clinical Laboratory Diagnostics Physician, Candidate of Biological Sciences</p></bio><email xlink:type="simple">ngomyranova@yandex.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-4453-8430</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Драпкина</surname><given-names>Оксана Михайловна</given-names></name><name name-style="western" xml:lang="en"><surname>Drapkina</surname><given-names>O. M.</given-names></name></name-alternatives><bio xml:lang="ru"><p>д.м.н., академик РАН, профессор, Директор</p></bio><bio xml:lang="en"><p>Director of the Federal State Budgetary Institution "National Medical Research Center of Therapy and Preventive Medicine" of the Ministry of Health of Russia, Chief freelance specialist in therapy and general medical practice of the Ministry of Health of Russia, Academician of the Russian Academy of Sciences, Professor</p></bio><email xlink:type="simple">drapkina@bk.ru</email><xref ref-type="aff" rid="aff-2"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>ФГБУ «Национальный медицинский исследовательский центр кардиологии им. акад. Е. И. Чазова» Минздрава РФ, Москва</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Academician E.I. Chazov National Medical Research Center of Cardiology, Moscow</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru"><institution>ФГБУ «Национальный медицинский исследовательский центр терапии и профилактической медицины» Минздрава РФ, Москва</institution><country>Россия</country></aff><aff xml:lang="en"><institution>National Medical Research Center for Therapy and Preventive Medicine, Moscow</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2026</year></pub-date><pub-date pub-type="epub"><day>29</day><month>08</month><year>2026</year></pub-date><volume>66</volume><issue>7</issue><fpage>21</fpage><lpage>30</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Kardiomag, 2026</copyright-statement><copyright-year>2026</copyright-year><copyright-holder xml:lang="ru">Kardiomag</copyright-holder><copyright-holder xml:lang="en">Kardiomag</copyright-holder><license xlink:href="https://cardio.elpub.ru/jour/about/submissions#copyrightNotice" xlink:type="simple"><license-p>https://cardio.elpub.ru/jour/about/submissions#copyrightNotice</license-p></license></permissions><self-uri xlink:href="https://cardio.elpub.ru/jour/article/view/3192">https://cardio.elpub.ru/jour/article/view/3192</self-uri><abstract><p>Цель     Изучить взаимосвязь между уровнями общего холестерина (ОХС) и холестерина липопротеидов низкой плотности (ХС ЛНП) на основе анализа показателей липидного обмена (ОХС, триглицериды – ​ТГ, холестерин липопротеидов высокой плотности – ​ХС ЛВП и ХС ЛНП) в клинической практике в зависимости от величины риска развития атеросклеротических сердечно-сосудистых заболеваний (АССЗ), приема гиполипидемических препаратов и их дозы, а также оценить возможность контроля эффективности гиполипидемической терапии по уровню ОХС.</p><p>Материал и методы  АССЗ остаются ведущей причиной смертности. Одним из важнейших модифицируемых факторов риска этого заболевания является дислипидемия. Несмотря на доказанную эффективность гиполипидемической терапии в снижении ОХС и ХС ЛНП, в клинической практике целевые уровни ХС ЛНП достигаются редко, в том числе из-за ограниченной доступности определения полного липидного состава крови, тогда как определение уровня ОХС проще и дешевле, что делает актуальным поиск подходов к оценке эффективности терапии по уровню ОХС. Обучающая выборка включала 5 146 пациентов из группы высокого и очень высокого риска, для проверки воспроизводимости использовали независимую базу данных 12 271 пациента. Уровни ОХС, ТГ и ХС ЛВП определяли ферментативным колориметрическим методом; концентрацию ХС ЛНП рассчитывали по формуле Фридвальда при ТГ &lt;4,5 ммоль/л или измеряли прямым методом при ТГ &gt;4,5 ммоль/л. В ходе работы создана и валидирована линейная регрессионная модель, позволяющая оценивать уровень ХС ЛНП в зависимости от концентрации ОХС. Статистическая обработка полученных данных выполнена с использованием Python.</p><p>Результаты    Получена формула пересчета: ХС ЛНП=0,74×ОХС–0,65, продемонстрировавшая тесную связь уровней ОХС и ХС ЛНП (в валидации r=0,941; R²=0,874; MAE=0,263 ммоль/л). Определены пороговые уровни ОХС, соответствующие целевым: ХС ЛНП &lt;1,8 ммоль/л при ОХС &lt;3,3 ммоль/л, ХС ЛНП &lt;1,4 ммоль/л при ОХС &lt;2,8 ммоль/л. Специфичность модели при выявлении недостижения целевых уровней составила 97,9 и 99,2% соответственно. Точность снижалась при высоких уровнях ТГ: точность результатов была наивысшей при уровне ТГ от 1,7 до 2,3 ммоль/л (68,8%) и снижалась при уровне ТГ ≥5,6 ммоль/л (23,1%).</p><p>Заключение      Формула ХС ЛНП=0,74×ОХС–0,65, рассчитанная на двух независимых выборках с общим числом 17 417 пациентов из группы высокого и очень высокого риска развития АССЗ, обладает специфичностью 97,9 и 99,2% соответственно для оценки достижения целевого уровня ХС ЛНП на основе значений ОХС. Так, пороговые уровни, соответствующие целевым ХС ЛНП &lt;1,8 ммоль/л, составляют ОХС &lt;3,3 ммоль/л, а ХС ЛНП &lt;1,4 ммоль/л – ​ОХС &lt;2,8 ммоль/л. При уровне ТГ в диапазоне 2,3–5,6 ммоль/л применение формулы следует использовать для ориентировочной оценки, тогда как при уровне ТГ ≥5,6 ммоль/л использование формулы нецелесообразно.</p></abstract><trans-abstract xml:lang="en"><p>Aim        To investigate the relationship between total cholesterol (TC) and low-density lipoprotein cholesterol (LDL-C) levels by analyzing lipid profiles (TC, triglycerides [TG], and high-density lipoprotein cholesterol [HDL-C]) across clinical practice settings according to atherosclerotic cardiovascular disease (ASCVD) risk categories, as well as the types and dosages of lipid-lowering therapies. Additionally, the study aimed to determine the feasibility of utilizing TC levels for monitoring the efficacy of lipid-lowering treatment.</p><p>Material and methods   ASCVDs remain the leading cause of mortality. Dyslipidemia represents one of the most critical modifiable risk factors for this condition. Despite the proven efficacy of lipid-lowering therapy in reducing TC and LDL-C, target LDL-C levels are rarely achieved in real-world clinical practice, partially due to limited access to full lipid panel testing. In contrast, measuring TC is simpler and more cost-effective, underscoring the clinical relevance of developing novel approaches to evaluate treatment efficacy using TC levels alone. The training cohort comprised 5,146 high- and very-high-risk patients, while an independent database of 12,271 patients was utilized for verifying model reproducibility. Serum levels of TC, TG, and HDL-C were quantified using enzymatic colorimetric assays. LDL-C concentrations were calculated via the Friedewald formula when TG levels were &lt;4.5 mmol/L, or measured directly when TG exceeded 4.5 mmol/L. A linear regression model was developed and validated to estimate LDL-C levels based on TC concentrations. Statistical analyses were performed using Python.</p><p>Results  The derived conversion equation was LDL-C = 0.74×TC−0.65, demonstrating a strong correlation between TC and LDL-C levels (validation cohort: r = 0.941; R² = 0.874; MAE=0.263 mmol/L). Diagnostic thresholds for TC corresponding to target LDL-C levels were established: LDL-C &lt;1.8 mmol/L corresponded to a TC of &lt;3.3 mmol/L, and an LDL-C target of &lt;1.4 mmol/L corresponded to a TC of &lt;2.8 mmol/L. The specificity of the model in identifying non-achievement of target levels was 97.9 and 99.2%, respectively. However, predictive accuracy was sensitive to elevated TG levels; performance peaked at TG levels between 1.7 and 2.3 mmol/L (68.8% accuracy) but dropped to 23.1% when TG levels reached ≥5.6 mmol/L.</p><p>Conclusion         Validated across two independent cohorts totaling 17,417 patients at high and very high risk of ASCVD, the equation LDL-C=0.74xTC−0.65 provides 97.9% and 99.2% specificity, respectively, for evaluating target LDL-C achievement using TC values. Specifically, a TC threshold of &lt;3.3 mmol/L corresponds to an LDL-C target of &lt;1.8 mmol/L, while a TC of &lt;2.8 mmol/L corresponds to an LDL-C target of &lt;1.4 mmol/L. For TG levels between 2.3 and 5.6 mmol/L, the formula should be limited to tentative assessments; its use is not recommended when TG levels reach ≥5.6 mmol/L.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>Общий холестерин</kwd><kwd>холестерин липопротеидов низкой плотности</kwd><kwd>риск сердечно-сосудистых заболеваний</kwd></kwd-group><kwd-group xml:lang="en"><kwd>Total cholesterol</kwd><kwd>low-density lipoprotein cholesterol</kwd><kwd>cardiovascular disease risk</kwd></kwd-group><funding-group><funding-statement xml:lang="ru">Нет внешнего финансирования.  Авторы заявляют об отсутствии конфликта интересов.</funding-statement><funding-statement xml:lang="en">Funding None.  The authors declare no conflict of interest.</funding-statement></funding-group></article-meta></front><back><ref-list><title>References</title><ref id="cit1"><label>1</label><citation-alternatives><mixed-citation xml:lang="ru">Драпкина О. М., Имаева А. Э., Куценко В. А., Капустина А. В., Баланова Ю. А., Максимов С. А. и др. Дислипидемии в Российской Федерации: популяционные данные, ассоциации с факторами риска. Кардиоваскулярная терапия и профилактика. 2023;22(8S):92–104. DOI: 10.15829/1728-8800-2023-3791</mixed-citation><mixed-citation xml:lang="en">Drapkina O. M., Imaeva A. E., Kutsenko V. A., Kapustina A. V., Balanova Yu.A., Maksimov S. A. et al. Dyslipidemia in the Russian Federation: population data, associations with risk factors. Cardiovascular Therapy and Prevention. 2023;22(8S):92–104. DOI: 10.15829/1728-8800-2023-3791</mixed-citation></citation-alternatives></ref><ref id="cit2"><label>2</label><citation-alternatives><mixed-citation xml:lang="ru">Ference BA, Ginsberg HN, Graham I, Ray KK, Packard CJ, Bruckert E et al. Low-density lipoproteins cause atherosclerotic cardiovascular disease. 1. Evidence from genetic, epidemiologic, and clinical studies. A consensus statement from the European Atherosclerosis Society Consensus Panel. European Heart Journal. 2017;38(32):2459–72. DOI: 10.1093/eurheartj/ehx144</mixed-citation><mixed-citation xml:lang="en">Ference BA, Ginsberg HN, Graham I, Ray KK, Packard CJ, Bruckert E et al. Low-density lipoproteins cause atherosclerotic cardiovascular disease. 1. Evidence from genetic, epidemiologic, and clinical studies. A consensus statement from the European Atherosclerosis Society Consensus Panel. European Heart Journal. 2017;38(32):2459–72. DOI: 10.1093/eurheartj/ehx144</mixed-citation></citation-alternatives></ref><ref id="cit3"><label>3</label><citation-alternatives><mixed-citation xml:lang="ru">Бойцов С. А., Шахнович Р. М., Эрлих А. Д., Терещенко С. Н., Кукава Н. Г., Рытова Ю. К. и др. Регистр острого инфаркта миокарда. РЕГИОН–ИМ – Российский рЕГИстр Острого иНфаркта миокарда. Кардиология. 2021;61(6):41–51. DOI: 10.18087/cardio.2021.6.n1595</mixed-citation><mixed-citation xml:lang="en">Boytsov S. A., Shakhnovich R. M., Erlikh A. D., Tereschenko S. N., Kukava N. G., Rytova Yu.K. et al. Registry of Acute Myocardial Infarction. REGION-MI – Russian Registry of Acute Myocardial Infarction. Kardiologiia. 2021;61(6):41–51. DOI: 10.18087/cardio.2021.6.n1595</mixed-citation></citation-alternatives></ref><ref id="cit4"><label>4</label><citation-alternatives><mixed-citation xml:lang="ru">Lowenstern AM, Li S, Navar AM, Roger VL, Robinson JG, Goldberg AC et al. Measurement of Low-Density Lipoprotein Cholesterol Levels in Primary and Secondary Prevention Patients: Insights From the PALM Registry. Journal of the American Heart Association. 2018;7(18): e009251. DOI: 10.1161/JAHA.118.009251</mixed-citation><mixed-citation xml:lang="en">Lowenstern AM, Li S, Navar AM, Roger VL, Robinson JG, Goldberg AC et al. Measurement of Low-Density Lipoprotein Cholesterol Levels in Primary and Secondary Prevention Patients: Insights From the PALM Registry. Journal of the American Heart Association. 2018;7(18): e009251. DOI: 10.1161/JAHA.118.009251</mixed-citation></citation-alternatives></ref><ref id="cit5"><label>5</label><citation-alternatives><mixed-citation xml:lang="ru">Levintow SN, Reading SR, Noshad S, Mayer SE, Wiener C, Eledath B et al. Lipid Testing Trends Before and After Hospitalization for Myocardial Infarction Among Adults in the United States, 2008–2019. Clinical Epidemiology. 2022;14:737–48. DOI: 10.2147/CLEP.S361258</mixed-citation><mixed-citation xml:lang="en">Levintow SN, Reading SR, Noshad S, Mayer SE, Wiener C, Eledath B et al. Lipid Testing Trends Before and After Hospitalization for Myocardial Infarction Among Adults in the United States, 2008–2019. Clinical Epidemiology. 2022;14:737–48. DOI: 10.2147/CLEP.S361258</mixed-citation></citation-alternatives></ref><ref id="cit6"><label>6</label><citation-alternatives><mixed-citation xml:lang="ru">Groenhof TKJ, Kofink D, Bots ML, Nathoe HM, Hoefer IE, Van Solinge WW et al. Low-Density Lipoprotein Cholesterol Target Attainment in Patients With Established Cardiovascular Disease: Analysis of Routine Care Data. JMIR Medical Informatics. 2020;8(4):e16400. DOI: 10.2196/16400</mixed-citation><mixed-citation xml:lang="en">Groenhof TKJ, Kofink D, Bots ML, Nathoe HM, Hoefer IE, Van Solinge WW et al. Low-Density Lipoprotein Cholesterol Target Attainment in Patients With Established Cardiovascular Disease: Analysis of Routine Care Data. JMIR Medical Informatics. 2020;8(4):e16400. DOI: 10.2196/16400</mixed-citation></citation-alternatives></ref><ref id="cit7"><label>7</label><citation-alternatives><mixed-citation xml:lang="ru">Ежов М. В., Сергиенко И. В., Палеев Ф. Н., Шангина А. М., Ефремова Ю. Е., Барбараш О. Л. и др. Влияние сервиса поддержки принятия врачебных решений на соблюдение клинических рекомендаций и достижение целевого уровня холестерина липопротеинов низкой плотности у пациентов с риском развития сердечно-сосудистых осложнений в Кемеровской области (Исследование SuccESS в Кемеровской области). Российский кардиологический журнал. 2025;30(5):18–29. DOI: 10.15829/1560-4071-2025-6370</mixed-citation><mixed-citation xml:lang="en">Ezhov M. V., Sergienko I. V., Paleev F. N., Shangina A. M., Efremova Yu.E., Barbarash O. L. et al. The impact of a clinical decision support service on adherence to clinical guidelines and achieving target low-density lipoprotein cholesterol levels in patients at risk of cardiovascular events in the Kemerovo Oblast (SuccESS Study in the Kemerovo Oblast). Russian Journal of Cardiology. 2025;30(5):18–29. DOI: 10.15829/1560-4071-2025-6370</mixed-citation></citation-alternatives></ref><ref id="cit8"><label>8</label><citation-alternatives><mixed-citation xml:lang="ru">Драпкина О. М., Шепель Р. Н., Дроздова Л. Ю., Калинина А. М., Булгакова Е. С., Орлов Д. О. и др. Качество диспансерного наблюдения взрослого населения с артериальной гипертонией 1–3 степени, за исключением резистентной артериальной гипертонии, врачами-терапевтами участковыми медицинских организаций субъектов Российской Федерации. Российский кардиологический журнал. 2021;26(4):61–73. DOI: 10.15829/1560-4071-2021-4332</mixed-citation><mixed-citation xml:lang="en">Drapkina O. M., Shepel R. N., Drozdova L.Yu., Kalinina A. M., Bulgakova E. S., Orlov D. O. et al. Quality of follow-up monitoring of the adult population with grade 1–3 hypertension, with the exception of resistant hypertension, by primary care physicians in different Russian regions. Russian Journal of Cardiology. 2021;26(4):61–73. DOI: 10.15829/1560-4071-2021-4332</mixed-citation></citation-alternatives></ref><ref id="cit9"><label>9</label><citation-alternatives><mixed-citation xml:lang="ru">Nino G, Lizi M, Nino K. Comparative validation of low-density lipoprotein cholesterol estimation formulas in older Georgian adults. Practical Laboratory Medicine. 2025;47: e00504. DOI: 10.1016/j.plabm.2025.e00504</mixed-citation><mixed-citation xml:lang="en">Nino G, Lizi M, Nino K. Comparative validation of low-density lipoprotein cholesterol estimation formulas in older Georgian adults. Practical Laboratory Medicine. 2025;47: e00504. DOI: 10.1016/j.plabm.2025.e00504</mixed-citation></citation-alternatives></ref><ref id="cit10"><label>10</label><citation-alternatives><mixed-citation xml:lang="ru">Быков А. В., Красильникова М. Д., Понкратова О. Ф., Ракута Н. В., Шишкин С. В. Неравенство в сфере здравоохранения. – М.: НИУ ВШЭ; 2021. – 80 с. ISBN 978-5-7598-2633-0</mixed-citation><mixed-citation xml:lang="en">Bykov A. V., Krasilnikova M. D., Ponkratova O. F., Rakuta N. V., Shishkin S. V. Health inequalities. – M.: National Research University Higher School of Economics; 2021. – 80 p. ISBN 978-5-7598-2633-0</mixed-citation></citation-alternatives></ref><ref id="cit11"><label>11</label><citation-alternatives><mixed-citation xml:lang="ru">Ежов М. В., Кухарчук В. В., Сергиенко И. В., Алиева А. С., Анциферов М. Б., Аншелес А. А. и др. Нарушения липидного обмена. Клинические рекомендации 2023. Российский кардиологический журнал. 2023;28(5):250–97. DOI: 10.15829/1560-4071-2023-5471</mixed-citation><mixed-citation xml:lang="en">Ezhov M. V., Kukharchuk V. V., Sergienko I. V., Alieva A. S., Antsiferov M. B., Ansheles A. A. et al. Disorders of lipid metabolism. Clinical Guidelines 2023. Russian Journal of Cardiology. 2023;28(5):250–97. DOI: 10.15829/1560-4071-2023-5471</mixed-citation></citation-alternatives></ref><ref id="cit12"><label>12</label><citation-alternatives><mixed-citation xml:lang="ru">Martins J, Steyn N, Rossouw HM, Pillay TS. Best practice for LDL-cholesterol: when and how to calculate. Journal of Clinical Pathology. 2023;76(3):145–52. DOI: 10.1136/jcp-2022-208480</mixed-citation><mixed-citation xml:lang="en">Martins J, Steyn N, Rossouw HM, Pillay TS. Best practice for LDL-cholesterol: when and how to calculate. Journal of Clinical Pathology. 2023;76(3):145–52. DOI: 10.1136/jcp-2022-208480</mixed-citation></citation-alternatives></ref><ref id="cit13"><label>13</label><citation-alternatives><mixed-citation xml:lang="ru">Samuel C, Park J, Sajja A, Michos ED, Blumenthal RS, Jones SR et al. Accuracy of 23 Equations for Estimating LDL Cholesterol in a Clinical Laboratory Database of 5,051,467 Patients. Global Heart. 2023;18(1):36. DOI: 10.5334/gh.1214</mixed-citation><mixed-citation xml:lang="en">Samuel C, Park J, Sajja A, Michos ED, Blumenthal RS, Jones SR et al. Accuracy of 23 Equations for Estimating LDL Cholesterol in a Clinical Laboratory Database of 5,051,467 Patients. Global Heart. 2023;18(1):36. DOI: 10.5334/gh.1214</mixed-citation></citation-alternatives></ref><ref id="cit14"><label>14</label><citation-alternatives><mixed-citation xml:lang="ru">Martin SS, Giugliano RP, Murphy SA, Wasserman SM, Stein EA, Ceška R et al. Comparison of Low-Density Lipoprotein Cholesterol Assessment by Martin/Hopkins Estimation, Friedewald Estimation, and Preparative Ultracentrifugation: Insights From the FOURIER Trial. JAMA Cardiology. 2018;3(8):749. DOI: 10.1001/jamacardio.2018.1533</mixed-citation><mixed-citation xml:lang="en">Martin SS, Giugliano RP, Murphy SA, Wasserman SM, Stein EA, Ceška R et al. Comparison of Low-Density Lipoprotein Cholesterol Assessment by Martin/Hopkins Estimation, Friedewald Estimation, and Preparative Ultracentrifugation: Insights From the FOURIER Trial. JAMA Cardiology. 2018;3(8):749. DOI: 10.1001/jamacardio.2018.1533</mixed-citation></citation-alternatives></ref><ref id="cit15"><label>15</label><citation-alternatives><mixed-citation xml:lang="ru">Sampson M, Ling C, Sun Q, Harb R, Ashmaig M, Warnick R et al. A New Equation for Calculation of Low-Density Lipoprotein Cholesterol in Patients With Normolipidemia and/or Hypertriglyceridemia. JAMA Cardiology. 2020;5(5):540–8. DOI: 10.1001/jamacardio.2020.0013</mixed-citation><mixed-citation xml:lang="en">Sampson M, Ling C, Sun Q, Harb R, Ashmaig M, Warnick R et al. A New Equation for Calculation of Low-Density Lipoprotein Cholesterol in Patients With Normolipidemia and/or Hypertriglyceridemia. JAMA Cardiology. 2020;5(5):540–8. DOI: 10.1001/jamacardio.2020.0013</mixed-citation></citation-alternatives></ref><ref id="cit16"><label>16</label><citation-alternatives><mixed-citation xml:lang="ru">Ćwiklińska A, Wieczorek E, Gliwińska A, Marcinkowska M, Czaplińska M, Mickiewicz A et al. Non-HDL-C/TG ratio indicates significant underestimation of calculated low-density lipoprotein cholesterol (LDL-C) better than TG level: a study on the reliability of mathematical formulas used for LDL-C estimation. Clinical Chemistry and Laboratory Medicine. 2021;59(5):857–67. DOI: 10.1515/cclm-2020-1366</mixed-citation><mixed-citation xml:lang="en">Ćwiklińska A, Wieczorek E, Gliwińska A, Marcinkowska M, Czaplińska M, Mickiewicz A et al. Non-HDL-C/TG ratio indicates significant underestimation of calculated low-density lipoprotein cholesterol (LDL-C) better than TG level: a study on the reliability of mathematical formulas used for LDL-C estimation. Clinical Chemistry and Laboratory Medicine. 2021;59(5):857–67. DOI: 10.1515/cclm-2020-1366</mixed-citation></citation-alternatives></ref><ref id="cit17"><label>17</label><citation-alternatives><mixed-citation xml:lang="ru">Rasouli M, Mokhtari H. Calculation of LDL-Cholesterol vs. Direct Homogenous Assay. Journal of Clinical Laboratory Analysis. 2017;31(3): e22057. DOI: 10.1002/jcla.22057</mixed-citation><mixed-citation xml:lang="en">Rasouli M, Mokhtari H. Calculation of LDL-Cholesterol vs. Direct Homogenous Assay. Journal of Clinical Laboratory Analysis. 2017;31(3): e22057. DOI: 10.1002/jcla.22057</mixed-citation></citation-alternatives></ref></ref-list><fn-group><fn fn-type="conflict"><p>The authors declare that there are no conflicts of interest present.</p></fn></fn-group></back></article>
