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<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">medsovet</journal-id><journal-title-group><journal-title xml:lang="ru">Медицинский Совет</journal-title><trans-title-group xml:lang="en"><trans-title>Meditsinskiy sovet = Medical Council</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">2079-701X</issn><issn pub-type="epub">2658-5790</issn><publisher><publisher-name>REMEDIUM GROUP Ltd.</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.21518/2079-701X-2020-17-82-90</article-id><article-id custom-type="elpub" pub-id-type="custom">medsovet-5880</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>COVID-19</subject></subj-group></article-categories><title-group><article-title>Прогнозирование длительности стационарного лечения пациентов с COVID-19</article-title><trans-title-group xml:lang="en"><trans-title>Predicting the duration of inpatient treatment for COVID-19 patients</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-5195-9316</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Цветков</surname><given-names>В. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Tsvetkov</surname><given-names>V. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Цветков Валерий Владимирович, кандидат медицинских наук, старший научный сотрудник</p><p>197376, Санкт-Петербург, ул. Профессора Попова, д. 15/17 </p></bio><bio xml:lang="en"><p>Valeriy V. Tsvetkov, Cand. of Sci (Med.), Senior Researcher</p><p>15/17, Professor Popov St., St Petersburg, 197376</p></bio><email xlink:type="simple">suppcolor@gmail.com</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-9824-3945</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Токин</surname><given-names>И. И.</given-names></name><name name-style="western" xml:lang="en"><surname>Tokin</surname><given-names>I. I.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Токин Иван Иванович, кандидат медицинских наук, ведущий научный сотрудник, заведующий отделом экспериментально-клинических исследований, Федеральное государственное бюджетное учреждение «Научно-исследовательский институт гриппа имени А.А. Смородинцева» Министерства здравоохранения Российской Федерации; доцент кафедры инфекционных болезней, Федеральное государственное бюджетное учреждение высшего образования «Северо-Западный государственный медицинский университет им. И.И. Мечникова» Министерства здравоохранения Российской Федерации</p><p>197376, Санкт-Петербург, ул. Профессора Попова, д. 15/17,</p><p>191015, Санкт-Петербург, ул. Кирочная, д. 41 </p></bio><bio xml:lang="en"><p>Tokin, Cand. of Sci (Med.), Leading Researcher, Head of the Department of Clinical Experimental Research, Federal State Budgetary Institution “Smorodintsev Research Institute of Influenza” of the Ministry of Health of the Russian Federation; Associate Professor of the Department of Infectious Diseases, Federal State Budgetary Institution of Higher Education “North-Western State Medical University named after I.I. Mechnikov” of the Ministry of Health of the Russian Federation</p><p>15/17, Professor Popov St., St Petersburg, 197376, </p><p>191015, St Petersburg</p></bio><email xlink:type="simple">ivan.tokin@influenza.spb.ru</email><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-3643-7354</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Лиознов</surname><given-names>Д. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Lioznov</surname><given-names>D. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Лиознов Дмитрий Анатольевич, доктор медицинских наук, исполняющий обязанности директора, Федеральное государственное бюджетное учреждение здравоохранения «Научноисследовательский институт гриппа имени А.А. Смородинцева» Министерства здравоохранения Российской Федерации; заведующий кафедрой инфекционных болезней и эпидемиологии, Федеральное государственное бюджетное образовательное учреждение высшего образования «Первый Санкт-Петербургский государственный медицинский университет имени академика И.П. Павлова» Министерства здравоохранения Российской Федерации</p><p>197376, Санкт-Петербург, ул. Профессора Попова, д. 15/17, </p><p>197022, Санкт-Петербург, ул. Льва Толстого, д. 6–8 </p></bio><bio xml:lang="en"><p>Dmitry A. Lioznov, Dr. of Sci. (Med.), Acting director, Federal State Budgetary Institution “Smorodintsev Research Institute of Influenza” of the Ministry of Health of the Russian Federation;  Head of the Department of Infectious Diseases and Epidemiology, Federal State Budgetary Educational Institution of Higher Education “Pavlov First Saint Petersburg State Medical University” of the Ministry of Healthcare of Russian Federation</p><p>15/17, Professor Popov St., St Petersburg, 197376, </p><p>6–8, Lev Tolstoy St., St Petersburg, 197022</p></bio><email xlink:type="simple">dlioznov@yandex.ru</email><xref ref-type="aff" rid="aff-3"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-2769-4586</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Венев</surname><given-names>Е. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Venev</surname><given-names>E. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Венев Евгений Валерьевич, очный аспирант, старший преподаватель, Федеральное государственное бюджетное учреждение «Научноисследовательский институт гриппа имени А.А. Смородинцева» Министерства здравоохранения Российской Федерации; врач-инфекционист, Санкт-Петербургское государственное бюджетное учреждение «Клиническая инфекционная больница им. С.П. Боткина»</p><p>197376, Санкт-Петербург, ул. Профессора Попова, д. 15/17,</p><p>195067, Санкт-Петербург, Пискарёвский проспект, д. 49 </p></bio><bio xml:lang="en"><p>Evgeny V. Venev, Postgraduate Student, Senior Lecturer, Federal State Budgetary Institution “Smorodintsev Research Institute of Influenza” of the Ministry of Health of the Russian Federation; infectious disease doctor, St Petersburg State Budgetary Institution “Clinical Infectious Disease Hospital named after S.P. Botkin”</p><p>15/17, Professor Popov St., St Petersburg, 197376, </p><p>49, Piskaryovsky Ave., St Petersburg, 195067</p></bio><email xlink:type="simple">evgenyvenev@gmail.com</email><xref ref-type="aff" rid="aff-4"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-4544-2967</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Куликов</surname><given-names>А. Н.</given-names></name><name name-style="western" xml:lang="en"><surname>Kulikov</surname><given-names>A. N.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Куликов Александр Николаевич, доктор медицинских наук, профессор, заместитель главного врача клиники по терапии, руководитель отдела клинической физиологии и функциональной диагностики</p><p>197022, Санкт-Петербург, ул. Льва Толстого, д. 6–8 </p></bio><bio xml:lang="en"><p>Alexandr N. Kulikov, Dr. of Sci. (Med.), Professor, Deputy Chief Physician of the Clinic for Therapy, Head of the Department of Clinical Physiology and Functional Diagnostics</p><p>6–8, Lev Tolstoy St., St Petersburg, 197022</p></bio><email xlink:type="simple">ankulikov2005@yandex.ru</email><xref ref-type="aff" rid="aff-5"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Научно-исследовательский институт гриппа им. А.А. Смородинцева</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Smorodintsev Research Institute of Influenza</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru"><institution>Научно-исследовательский институт гриппа им. А.А. Смородинцева;&#13;
Северо-Западный государственный медицинский университет им. И.И. Мечникова</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Smorodintsev Research Institute of Influenza;&#13;
North-Western State Medical University named after I.I. Mechnikov</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-3"><aff xml:lang="ru"><institution>Научно-исследовательский институт гриппа им. А.А. Смородинцева;&#13;
Первый Санкт-Петербургский государственный медицинский университет им. академика И.П. Павлова</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Smorodintsev Research Institute of Influenza;&#13;
Pavlov First Saint Petersburg State Medical University</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-4"><aff xml:lang="ru"><institution>Научно-исследовательский институт гриппа им. А.А. Смородинцева;&#13;
Клиническая инфекционная больница им. С.П. Боткина</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Smorodintsev Research Institute of Influenza;&#13;
Clinical Infectious Disease Hospital named after S.P. Botkin</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-5"><aff xml:lang="ru"><institution>Первый Санкт-Петербургский государственный медицинский университет им. академика И.П. Павлова</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Pavlov First Saint Petersburg State Medical University</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2020</year></pub-date><pub-date pub-type="epub"><day>21</day><month>11</month><year>2020</year></pub-date><volume>0</volume><issue>17</issue><fpage>82</fpage><lpage>90</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Цветков В.В., Токин И.И., Лиознов Д.А., Венев Е.В., Куликов А.Н., 2020</copyright-statement><copyright-year>2020</copyright-year><copyright-holder xml:lang="ru">Цветков В.В., Токин И.И., Лиознов Д.А., Венев Е.В., Куликов А.Н.</copyright-holder><copyright-holder xml:lang="en">Tsvetkov V.V., Tokin I.I., Lioznov D.A., Venev E.V., Kulikov A.N.</copyright-holder><license xml:lang="ru" license-type="creative-commons-attribution" xlink:href="https://creativecommons.org/licenses/by/4.0/" xlink:type="simple"><license-p>Данная работа распространяется под лицензией Creative Commons Attribution 4.0.</license-p></license><license xml:lang="en" license-type="creative-commons-attribution" xlink:href="https://creativecommons.org/licenses/by/4.0/" xlink:type="simple"><license-p>This work is licensed under a Creative Commons Attribution 4.0 License.</license-p></license></permissions><self-uri xlink:href="https://www.med-sovet.pro/jour/article/view/5880">https://www.med-sovet.pro/jour/article/view/5880</self-uri><abstract><sec><title>Введение</title><p>Введение. В условиях высокой нагрузки на все звенья в структуре оказания медицинской помощи больным COVID-19 решение вопроса эффективной медицинской сортировки пациентов представляется чрезвычайно актуальным. Длительность стационарного лечения является одним из наиболее объективных и однозначно интерпретируемых показателей, которые могут быть использованы для косвенной оценки тяжести состояния пациента.</p></sec><sec><title>Цель</title><p>Цель. Разработать модель машинного обучения для прогнозирования длительности стационарного лечения пациентов с COVID-19 на основании рутинных клинических показателей, оцениваемых на догоспитальном этапе.</p></sec><sec><title>Материалы и методы</title><p>Материалы и методы. Всего обследовано 564 пациента с диагнозами «U07.1 COVID-19, вирус идентифицирован» (n = 367) и «U07.2 COVID-19, вирус не идентифицирован» (n = 197). В исследование включено 270 пациентов, из них у 50,37% больных длительность стационарного лечения не превышала 7 дней, у 49,63% больных продолжительность стационарного лечения была более 10 дней. В качестве наиболее важных предикторов для прогнозирования длительности стационарного лечения были выбраны 11 клинических параметров: возраст, рост и вес пациента, уровень SpO2, температура тела, индекс массы тела, частота пульса, количество дней от начала болезни, частота дыхательных движений, систолическое и диастолическое артериальное давление.</p></sec><sec><title>Результаты</title><p>Результаты. Точность разработанной нами модели машинного обучения для прогнозирования длительности стационарного лечения более 10 дней составила 83,75% (95% ДИ: 73,82–91,05%), чувствительность — 82,50%, специфичность — 85,00%, AUC = 0,86.</p></sec><sec><title>Заключение</title><p>Заключение. Разработанный нами метод на базе машинного обучения характеризуется высокой точностью прогнозирования длительности стационарного лечения больных COVID-19, что позволяет рассматривать его как новый перспективный инструмент для поддержки принятия врачебных решений о дальнейшей тактике ведения пациента и решения вопроса о необходимости госпитализации.</p></sec></abstract><trans-abstract xml:lang="en"><sec><title>Introduction</title><p>Introduction. In the context of a high load on all links in the structure of providing medical care to patients with COVID-19, solving the issue of effective triage of patients seems to be extremely urgent. The duration of inpatient treatment is one of the most objective and unambiguously interpreted indicators that can be used to indirectly assess the severity of the patient’s condition.</p></sec><sec><title>Objective</title><p>Objective. Develop a machine learning model to predict the duration of inpatient care for patients with COVID-19 based on routine clinical indicators assessed at the prehospital stage.</p></sec><sec><title>Materials and methods</title><p>Materials and methods. A total of 564 patients were examined with diagnoses: U07.1 COVID-19, virus identified (n = 367) and U07.2 COVID-19, virus not identified (n = 197). The study included 270 patients, of whom in 50.37% of patients the duration of inpatient treatment did not exceed 7 days, in 49.63% of patients the duration of inpatient treatment was more than 10 days. Eleven clinical parameters were chosen as the most important predictors for predicting the duration of inpatient treatment: age, height and weight of the patient, SpO2 level, body temperature, body mass index, pulse rate, number of days from the onset of illness, respiratory rate, systolic and diastolic arterial pressure.</p></sec><sec><title>Results</title><p>Results. The accuracy of our machine learning model for predicting the duration of inpatient treatment more than 10 days was 83.75% (95% CI: 73.82–91.05%), sensitivity — 82.50%, specificity — 85.00%. AUC = 0.86.</p></sec><sec><title>Conclusion</title><p>Conclusion. The method developed by us based on machine learning is characterized by high accuracy in predicting the duration of inpatient treatment of patients with COVID-19, which makes it possible to consider it as a promising new tool to support medical decisions on further tactics of patient management and to resolve the issue of the need for hospitalization.</p></sec></trans-abstract><kwd-group xml:lang="ru"><kwd>COVID-19</kwd><kwd>клинические показатели</kwd><kwd>прогнозирование</kwd><kwd>длительность лечения</kwd><kwd>машинное обучение</kwd></kwd-group><kwd-group xml:lang="en"><kwd>COVID-19</kwd><kwd>clinical scores</kwd><kwd>prediction</kwd><kwd>duration of treatment</kwd><kwd>machine learning</kwd></kwd-group></article-meta></front><back><ref-list><title>References</title><ref id="cit1"><label>1</label><citation-alternatives><mixed-citation xml:lang="ru">Авдеев С.Н., Адамян Л.В., Алексеева Е.И., Багненко С.Ф., Баранов А.А., Баранова Н.Н. и др. 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