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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">medlit</journal-id><journal-title-group><journal-title xml:lang="ru">Гигиена и санитария</journal-title><trans-title-group xml:lang="en"><trans-title>Hygiene and Sanitation</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">0016-9900</issn><issn pub-type="epub">2412-0650</issn><publisher><publisher-name>Federal Scientific Center of Hygiene named after F.F. Erisman</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.47470/0016-9900-2025-104-9-1158-1164</article-id><article-id custom-type="edn" pub-id-type="custom">momxom</article-id><article-id custom-type="elpub" pub-id-type="custom">medlit-5155</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>ГИГИЕНА ДЕТЕЙ И ПОДРОСТКОВ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>HYGIENE OF CHILDREN AND ADOLESCENTS</subject></subj-group></article-categories><title-group><article-title>Оценка использования студентами Интернета в обычных условиях обучения, в период самоизоляции во время и после пандемии COVID-19</article-title><trans-title-group xml:lang="en"><trans-title>Assessment of students’ use of the internet in normal learning environments, during self-isolation during COVID-19 and after the pandemic</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-1410-5546</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Кучма</surname><given-names>Владислав Ремирович</given-names></name><name name-style="western" xml:lang="en"><surname>Kuchma</surname><given-names>Vladislav R.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Доктор мед. наук, профессор, член-корреспондент РАН, зав. каф. гигиены детей и подростков ИОЗ Первого МГМУ им. И.М. Сеченова (Сеченовский Университет), 109991, Москва, Россия</p><p>e-mail: kuchma_v_r@staff.sechenov.ru</p></bio><bio xml:lang="en"><p>DSc (Medicine), professor, corresponding member of the RAS, Head of the Department of Hygiene of Children and Adolescents, Institute of Public Health after F.F. Erisman, I.M. Sechenov First Moscow State Medical University (Sechenov University), Moscow, 119991, Russian Federation; Federal Scientific Center of Hygiene named after F.F. Erisman, Mytishchi, 141014, Russian Federation</p><p>e-mail: kuchma_v_r@staff.sechenov.ru</p><p> </p></bio><email xlink:type="simple">kuchma_v_r@staff.sechenov.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/0000-0003-4669-4055</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Ямщикова</surname><given-names>Наталия Львовна</given-names></name><name name-style="western" xml:lang="en"><surname>Yamshchikova</surname><given-names>Natalia L.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Канд. мед. наук, доцент каф. гигиены детей и подростков ИОЗ Первого МГМУ им. И.М. Сеченова (Сеченовский Университет), 109991, Москва, Россия</p><p>e-mail: yamshchikova_n_l@staff.sechenov.ru</p></bio><bio xml:lang="en"><p>PhD (Medicine), associate professor of the Department of hygiene of children and adolescents, Institute of Public Health after F.F. Erisman, I.M. Sechenov First Moscow State Medical University (Sechenov University), Moscow, 119991, Russian Federation</p><p>e-mail: yamshchikova_n_l@staff.sechenov.ru</p></bio><email xlink:type="simple">yamshchikova_n_l@staff.sechenov.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/0000-0003-0178-0574</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Макарова</surname><given-names>Анна Юрьевна</given-names></name><name name-style="western" xml:lang="en"><surname>Makarova</surname><given-names>Anna Yu.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Канд. мед. наук, доцент каф. гигиены детей и подростков ИОЗ Первого МГМУ им. И.М. Сеченова (Сеченовский Университет), 109991, Москва, Россия</p><p>e-mail: makarova_a_yu@staff.sechenov.ru</p></bio><bio xml:lang="en"><p>PhD (Medicine), associate professor of the Department of hygiene of children and adolescents, Institute of Public Health named after F.F. Erisman, I.M. Sechenov First Moscow State Medical University (Sechenov University), Moscow, 119991, Russian Federation</p><p>e-mail: makarova_a_yu@staff.sechenov.ru </p></bio><email xlink:type="simple">makarova_a_yu@staff.sechenov.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/0000-0002-5587-8860</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Бражников</surname><given-names>Алексей Юрьевич</given-names></name><name name-style="western" xml:lang="en"><surname>Brazhnikov</surname><given-names>Alexey Yu.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Канд. мед. наук, доцент каф. эпидемиологии и доказательной медицины ИОЗ Первого МГМУ им. И.М. Сеченова (Сеченовский Университет), 109991, Москва, Россия</p><p>e-mail: brazhnikov_a_yu@staff.sechenov.ru</p></bio><bio xml:lang="en"><p>PhD (Medicine), associate professor of the Department of epidemiology and evidence-based medicine, I.M. Sechenov First Moscow State Medical University (Sechenov University), Moscow, 109991, Russian Federation</p><p>e-mail: brazhnikov_a_yu@staff.sechenov.ru</p></bio><email xlink:type="simple">brazhnikov_a_yu@staff.sechenov.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/0000-0002-8503-2989</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Лапонова</surname><given-names>Евгения Дмитриевна</given-names></name><name name-style="western" xml:lang="en"><surname>Laponova</surname><given-names>Evgeniya D.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Доктор мед. наук, профессор каф. гигиены детей и подростков ИОЗ Первого МГМУ им. И.М. Сеченова (Сеченовский Университет), 109991, Москва, Россия</p><p>e-mail: laponova_e_d@staff.sechenov.ru</p></bio><bio xml:lang="en"><p>DSc (Medicine), professor of the Department of Hygiene of Children and Adolescents, Institute of Public Health named after F.F. Erisman, I.M. Sechenov First Moscow State Medical University (Sechenov University), Moscow, 119991, Russian Federation</p><p>e-mail: laponova_e_d@staff.sechenov.ru</p></bio><email xlink:type="simple">laponova_e_d@staff.sechenov.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/0000-0001-7780-8081</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Нарышкина</surname><given-names>Елена Вячеславовна</given-names></name><name name-style="western" xml:lang="en"><surname>Naryshkina</surname><given-names>Elena V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Канд. мед. наук, доцент каф. гигиены детей и подростков ИОЗ Первого МГМУ им. И.М. Сеченова (Сеченовский Университет), 109991, Москва, Россия</p><p>e-mail: elena.v.nar21@gmail.com</p></bio><bio xml:lang="en"><p>PhD (Medicine), associate professor of the Department of hygiene of children and adolescents, the Institute of Public Health named after F.F. Erisman, I.M. Sechenov First Moscow State Medical University (Sechenov University), Moscow, 119991, Russian Federation</p><p>e-mail: narishkina_e_v@staff.sechenov.ru</p></bio><email xlink:type="simple">elena.v.nar21@gmail.com</email><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-4587-4791</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Чубаровский</surname><given-names>Владимир Владимирович</given-names></name><name name-style="western" xml:lang="en"><surname>Chubarovsky</surname><given-names>Vladimir V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Доктор мед. наук, профессор каф. гигиены детей и подростков ИОЗ Первого МГМУ им. И.М. Сеченова (Сеченовский Университет), 109991, Москва, Россия</p><p>e-mail: chubarovskiy_v_v@staff.sechenov.ru</p></bio><bio xml:lang="en"><p>DSc (Medicine), professor, Department of hygiene of children and adolescents, Institute of Public Health named after F.F. Erisman, I.M. Sechenov First Moscow State Medical University (Sechenov University), Moscow, 119991, Russian Federation</p><p>e-mail: chubarovskiy_v_v@staff.sechenov.ru</p></bio><email xlink:type="simple">chubarovskiy_v_v@staff.sechenov.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/0000-0002-8386-911X</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Демина</surname><given-names>Надежда Николаевна</given-names></name><name name-style="western" xml:lang="en"><surname>Demina</surname><given-names>Nadezhda N.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Ассистент каф. гигиены детей и подростков ИОЗ Первого МГМУ им. И.М. Сеченова (Сеченовский Университет), 109991, Москва, Россия</p><p>e-mail: demina_n_n@staff.sechenov.ru</p></bio><bio xml:lang="en"><p>Assistant professor of the Department of hygiene of children and adolescents, Institute of Public Health named after F.F. Erisman, I.M. Sechenov First Moscow State Medical University (Sechenov University), Moscow, 119991, Russian Federation</p><p>e-mail: demina_n_n@staff.sechenov.ru</p></bio><email xlink:type="simple">demina_n_n@staff.sechenov.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/0009-0008-6975-9134</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Лещёва</surname><given-names>Мария Алексеевна</given-names></name><name name-style="western" xml:lang="en"><surname>Leshcheva</surname><given-names>Maria A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Студент 6-го курса ИОЗ Первого МГМУ им. И.М. Сеченова (Сеченовский Университет), 109991, Москва, Россия</p><p>e-mail: lesevamaria57@gmail.com</p></bio><bio xml:lang="en"><p>6th year student of the I.M. Sechenov First Moscow State Medical University (Sechenov University), Moscow, 119991, Russian Federation</p><p>e-mail: lesevamaria57@gmail.com</p></bio><email xlink:type="simple">lesevamaria57@gmail.com</email><xref ref-type="aff" rid="aff-2"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>ФГАОУ ВО Первый Московский государственный медицинский университет имени И.М. Сеченова Министерства здравоохранения Российской Федерации (Сеченовский Университет); ФБУН «Федеральный научный центр гигиены имени Ф.Ф. Эрисмана» Роспотребнадзора</institution><country>Россия</country></aff><aff xml:lang="en"><institution>I.M. Sechenov First Moscow State Medical University (Sechenov University); Federal Scientific Center of Hygiene named after F.F. Erisman</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru"><institution>ФГАОУ ВО Первый Московский государственный медицинский университет имени И.М. Сеченова Министерства здравоохранения Российской Федерации (Сеченовский Университет)</institution><country>Россия</country></aff><aff xml:lang="en"><institution>I.M. Sechenov First Moscow State Medical University (Sechenov University)</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2025</year></pub-date><pub-date pub-type="epub"><day>21</day><month>10</month><year>2025</year></pub-date><volume>104</volume><issue>9</issue><fpage>1158</fpage><lpage>1164</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Кучма В.Р., Ямщикова Н.Л., Макарова А.Ю., Бражников А.Ю., Лапонова Е.Д., Нарышкина Е.В., Чубаровский В.В., Демина Н.Н., Лещёва М.А., 2025</copyright-statement><copyright-year>2025</copyright-year><copyright-holder xml:lang="ru">Кучма В.Р., Ямщикова Н.Л., Макарова А.Ю., Бражников А.Ю., Лапонова Е.Д., Нарышкина Е.В., Чубаровский В.В., Демина Н.Н., Лещёва М.А.</copyright-holder><copyright-holder xml:lang="en">Kuchma V.R., Yamshchikova N.L., Makarova A.Y., Brazhnikov A.Y., Laponova E.D., Naryshkina E.V., Chubarovsky V.V., Demina N.N., Leshcheva M.A.</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.rjhas.ru/jour/article/view/5155">https://www.rjhas.ru/jour/article/view/5155</self-uri><abstract><sec><title>Введение</title><p>Введение. Широкое использование Интернета в работе, общественной жизни, досуге и общении вызывает как оптимизм, так и обеспокоенность. Вспыхнувшая в 2019 г. пандемия COVID-19 привела к чрезмерному использованию Интернета, а снятие карантина позволило вернуться к привычному его применению для учёбы и работы.</p><p>Цель исследования – сравнительный анализ использования Интернета студентами медицинского вуза до, во время и после пандемии COVID-19.</p></sec><sec><title>Материалы и методы</title><p>Материалы и методы. В исследовании студентам было предложено оценить, как они чувствовали и вели себя в отношении использования Интернета за последние шесть месяцев. Была использована анкета «Проблемное и рискованное использование Интернета» (PRIUSS) в бумажном варианте и в формате Гугл-опроса. Участниками первого опроса были 230 студентов, через год, в период самоизоляции, в опросе приняли участие 90 человек, а через два года – 344.</p></sec><sec><title>Результаты</title><p>Результаты. При первом опросе установлено, что 25,2% опрошенных имели риски, связанные с использованием Интернета. Во втором опросе доля опрошенных с проблемами возросла до 93,3%, в третьем опросе проблемы испытывали 20,9% студентов.</p></sec><sec><title>Ограничения исследования</title><p>Ограничения исследования. Выборка студентов, обучающихся в медицинских вузах Москвы, ограничивает возможность генерализации результатов на другие регионы и типы образовательных организаций.</p></sec><sec><title>Заключение</title><p>Заключение. Использование Интернета, сопряжённое с определёнными проблемами, резко возросло в период самоизоляции и вернулось к исходному уровню через два года после пандемии. Полученные результаты свидетельствуют о том, что проблемное использование Интернета и профилактика зависимости от него должны быть важным направлением снижения рисков опасного для здоровья поведения детей и молодёжи.</p><p>Соблюдение этических стандартов. Исследование проводилось в соответствии с этическими нормами, изложенными в Хельсинкской декларации Всемирной медицинской ассоциации (8/19EC). Все участники дали информированное добровольное письменное согласие на участие в исследовании.</p></sec><sec><title>Участие авторов</title><p>Участие авторов: Кучма В.Р. – концепция, редактирование, утверждение окончательного варианта статьи, ответственность за целостность всех её частей; Ямщикова Н.Л., Нарышкина Е.В. – концепция и дизайн исследования, сбор материала, обработка данных, написание текста; Макарова А.Ю. – концепция и дизайн исследования, сбор материала, обработка данных; Бражников А.Ю. – концепция и дизайн исследования, обработка данных, написание текста; Лапонова Е.Д., Чубаровский В.В. – концепция и дизайн исследования; Лещёва М.А. – обработка данных; Демина Н.Н. – сбор материала, обработка данных.</p></sec><sec><title>Конфликт интересов</title><p>Конфликт интересов. Авторы декларируют отсутствие явных и потенциальных конфликтов интересов в связи с публикацией данной статьи.</p></sec><sec><title>Финансирование</title><p>Финансирование. Исследование не имело финансовой поддержки.</p></sec><sec><title>Поступила</title><p>Поступила: 03.06.2025 / Принята к печати: 19.09.2025 / Опубликована: 20.10.2025</p></sec></abstract><trans-abstract xml:lang="en"><sec><title>Introduction</title><p>Introduction. Since the Internet has made fundamental changes in work, social life, leisure, and communication, it has caused both optimism and concern. It is difficult for some people to limit its use, which adversely affects their lives, especially when it comes to children, adolescents, and young people. This has sparked a wide range of research ranging from psychology, sociology, and neuroscience. Several terms have been used to describe the problem, including Internet addiction, gaming disorder, and problematic Internet use. The COVID-19 pandemic that broke out in 2019 significantly affected the quality of life and led to Internet abuse. The lifting of quarantine allowed returning to the usual rhythm of life and, accordingly, the use of the Internet for study and work, as it was before self-isolation. </p></sec><sec><title>The purpose of the study</title><p>The purpose of the study. To compare the use of the Internet before, on time, and after COVID-19 in medical university students.</p></sec><sec><title>Materials and methods</title><p>Materials and methods. The study asked students to rate their feelings and behaviors regarding internet use over the past six months. The “Problematic and Risky Internet Use Survey” (PRIUSS) was administered in both paper and Google Query formats. Participants in the first survey included two hundred thirty students; a year later, during the self-isolation period, 90 students participated; and two years later, 344 students participated.</p></sec><sec><title>Results</title><p>Results. The first survey found that 25.2% of respondents reported risks associated with internet use. In the second survey, the proportion of respondents with problems increased to 93.3%, and in the third survey, 20.9% of students experienced problems.</p></sec><sec><title>Limitations</title><p>Limitations. The sample of students studying at Medical universities in Moscow limits the possibility of generalizing the results to other regions and types of educational institutions.</p></sec><sec><title>Conclusion</title><p>Conclusion. Problematic internet use increased sharply during the lockdown and returned to baseline levels two years after the pandemic. These findings suggest that problematic internet use and addiction prevention should be an important focus for reducing the risk of health-threatening behavior in children and young people.</p><p>Compliance with ethical standards. Compliance with ethical standards. The study was conducted in accordance with the ethical standards set forth in the World Medical Association Declaration of Helsinki (8/19EC). All participants gave informed voluntary written consent to participate in the study.</p></sec><sec><title>Contribution</title><p>Contribution: Kuchma V.R. – concept, editing the article, approval of the final version of the article, responsibility for the integrity of all parts of the article; Yamshchikova N.L., Naryshkina E.V. – study concept and design, data collection, data processing, writing the text; Makarova A.Yu. – study concept and design, data collection, data processing; Brazhnikov A.Yu. – study concept and design, data processing, writing the text; Laponova E.D., Chubarovsky V.V. – study concept and design; Leshcheva M.A. – data processing; Demina N.N. – data collection, data processing.</p></sec><sec><title>Conflict of interest</title><p>Conflict of interest. The authors declare no conflict of interest.</p></sec><sec><title>Funding</title><p>Funding. The study had no sponsorship.</p></sec><sec><title>Received</title><p>Received: June 3, 2025 / Accepted: September 19, 2025 / Published: October 20, 2025</p></sec></trans-abstract><kwd-group xml:lang="ru"><kwd>образ жизни</kwd><kwd>общественная профилактика</kwd><kwd>риски использования Интернета</kwd><kwd>пандемия COVID-19</kwd><kwd>студенты</kwd><kwd>скрининг использования Интернета</kwd><kwd>дистанционное обучение</kwd></kwd-group><kwd-group xml:lang="en"><kwd>lifestyle</kwd><kwd>public prevention</kwd><kwd>Internet usage risks</kwd><kwd>COVID-19 pandemic</kwd><kwd>students</kwd><kwd>Internet usage screening</kwd><kwd>distance 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">Hoehe M.R., Thibaut F. Going digital: how technology use may influence human brains and behavior. Dialogues Clin. 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