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<article 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" xmlns:ali="http://www.niso.org/schemas/ali/1.0/" article-type="research-article" dtd-version="1.2" xml:lang="en"><front><journal-meta><journal-id journal-id-type="publisher-id">Consortium PSYCHIATRICUM</journal-id><journal-title-group><journal-title xml:lang="en">Consortium PSYCHIATRICUM</journal-title><trans-title-group xml:lang="ru"><trans-title>Consortium PSYCHIATRICUM</trans-title></trans-title-group></journal-title-group><issn publication-format="print">2712-7672</issn><issn publication-format="electronic">2713-2919</issn><publisher><publisher-name xml:lang="en">Eco-Vector</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="publisher-id">15730</article-id><article-id pub-id-type="doi">10.17816/CP15730</article-id><article-categories><subj-group subj-group-type="toc-heading" xml:lang="en"><subject>RESEARCH</subject></subj-group><subj-group subj-group-type="toc-heading" xml:lang="ru"><subject>ИССЛЕДОВАНИЕ</subject></subj-group><subj-group subj-group-type="article-type"><subject>Research Article</subject></subj-group></article-categories><title-group><article-title xml:lang="en">Clinical phenotypes of anorexia nervosa: mathematical models based on latent class analysis of psychopathological symptoms</article-title><trans-title-group xml:lang="ru"><trans-title>Клинические фенотипы нервной анорексии: математические модели на основании анализа латентных классов психопатологических симптомов</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-0958-0596</contrib-id><contrib-id contrib-id-type="spin">9600-0688</contrib-id><name-alternatives><name xml:lang="en"><surname>Karpenko</surname><given-names>Olga A.</given-names></name><name xml:lang="ru"><surname>Карпенко</surname><given-names>Ольга Анатольевна</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>MD, Cand.Sci (Med.), Principal Researcher, Scientific and Clinical Center for Neuropsychiatry</p></bio><bio xml:lang="ru"><p>к.м.н., главный научный сотрудник Научно-клинического исследовательского центра нейропсихиатрии</p></bio><email>drkarpenko@gmail.com</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-4334-1601</contrib-id><contrib-id contrib-id-type="researcherid">I-8133-2013</contrib-id><contrib-id contrib-id-type="spin">7629-5309</contrib-id><name-alternatives><name xml:lang="en"><surname>Syunyakov</surname><given-names>Timur S.</given-names></name><name xml:lang="ru"><surname>Сюняков</surname><given-names>Тимур Сергеевич</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>MD, Cand.Sci (Med.), Senior Researcher, Scientific and Clinical Center for Neuropsychiatry</p></bio><bio xml:lang="ru"><p>к.м.н., старший научный сотрудник Научно-клинического исследовательского центра нейропсихиатрии</p></bio><email>drkarpenko@gmail.com</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-5387-4367</contrib-id><contrib-id contrib-id-type="spin">3681-6911</contrib-id><name-alternatives><name xml:lang="en"><surname>Berdalin</surname><given-names>Alexander B.</given-names></name><name xml:lang="ru"><surname>Бердалин</surname><given-names>Александр Берикович</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>MD, Cand. Sci (Med.), Senior Researcher, Scientific and Clinical Center for Neuropsychiatry</p></bio><bio xml:lang="ru"><p>к.м.н., старший научный сотрудник Научно-клинического исследовательского центра нейропсихиатрии</p></bio><email>drkarpenko@gmail.com</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Evlampieva</surname><given-names>Anastasia V.</given-names></name><name xml:lang="ru"><surname>Евлампиева</surname><given-names>Анастасия Валериановна</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>Psychiatrist, Inpatient hospital, Eating Disorders Clinic</p></bio><bio xml:lang="ru"><p>врач-психиатр стационарного отделения Центра терапии расстройств приема пищи «Клиника расстройств пищевого поведения»</p></bio><email>drkarpenko@gmail.com</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0009-0008-0970-4932</contrib-id><name-alternatives><name xml:lang="en"><surname>Andrianova</surname><given-names>Olga V.</given-names></name><name xml:lang="ru"><surname>Андрианова</surname><given-names>Ольга Владиславовна</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>Psychiatrist, Inpatient hospital, Eating Disorders Clinic</p></bio><bio xml:lang="ru"><p>врач-психиатр стационарного отделения Центра терапии расстройств приема пищи «Клиника расстройств пищевого поведения»</p></bio><email>drkarpenko@gmail.com</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0009-0007-7785-4353</contrib-id><contrib-id contrib-id-type="spin">9830-0729</contrib-id><name-alternatives><name xml:lang="en"><surname>Gilmutdinova</surname><given-names>Laura E.</given-names></name><name xml:lang="ru"><surname>Гильмутдинова</surname><given-names>Лаура Эдуардовна</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>Psychiatrist, Day hospital, Eating Disorders Clinic</p></bio><bio xml:lang="ru"><p>врач-психиатр дневного стационара Центра терапии расстройств приема пищи «Клиника расстройств пищевого поведения»</p></bio><email>drkarpenko@gmail.com</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Novichkova</surname><given-names>Alla V.</given-names></name><name xml:lang="ru"><surname>Новичкова</surname><given-names>Алла Владимировна</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>Psychiatrist, Day hospital, Eating Disorders Clinic</p></bio><bio xml:lang="ru"><p>врач-психиатр дневного стационара Центра терапии расстройств приема пищи «Клиника расстройств пищевого поведения»</p></bio><email>drkarpenko@gmail.com</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0009-0006-0060-0374</contrib-id><contrib-id contrib-id-type="spin">4036-4901</contrib-id><name-alternatives><name xml:lang="en"><surname>Aleksanian</surname><given-names>Andrey K.</given-names></name><name xml:lang="ru"><surname>Алексанян</surname><given-names>Андрей Корюнович</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>Psychiatrist, Dispensary department, Eating Disorders Clinic</p></bio><bio xml:lang="ru"><p>врач-психиатр диспансерного отделения Центра терапии расстройств приема пищи «Клиника расстройств пищевого поведения»</p></bio><email>drkarpenko@gmail.com</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0009-0009-3001-1505</contrib-id><contrib-id contrib-id-type="spin">8326-5404</contrib-id><name-alternatives><name xml:lang="en"><surname>Nikolkina</surname><given-names>Julia A.</given-names></name><name xml:lang="ru"><surname>Николкина</surname><given-names>Юлия Аркадьевна</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>Psychiatrist, Dispensary department, Eating Disorders Clinic</p></bio><bio xml:lang="ru"><p>врач-психиатр диспансерного отделения Центра терапии расстройств приема пищи «Клиника расстройств пищевого поведения»</p></bio><email>drkarpenko@gmail.com</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-7158-9041</contrib-id><contrib-id contrib-id-type="spin">2462-4952</contrib-id><name-alternatives><name xml:lang="en"><surname>Mazurova</surname><given-names>Evgeniya V.</given-names></name><name xml:lang="ru"><surname>Мазурова</surname><given-names>Евгения Владимировна</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>Psychiatrist, Head of the Day hospital, Eating Disorders Clinic</p></bio><bio xml:lang="ru"><p>врач-психиатр, заведующая дневным стационаром Центра терапии расстройств приема пищи «Клиника расстройств пищевого поведения»</p></bio><email>drkarpenko@gmail.com</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-5911-9992</contrib-id><contrib-id contrib-id-type="spin">3929-8440</contrib-id><name-alternatives><name xml:lang="en"><surname>Shafarenko</surname><given-names>Aleksey A.</given-names></name><name xml:lang="ru"><surname>Шафаренко</surname><given-names>Алексей Александрович</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>Psychiatrist, Head of the Inpatient department, Eating Disorders Clinic</p></bio><bio xml:lang="ru"><p>врач-психиатр, заведующий стационарным отделением Центра терапии расстройств приема пищи «Клиника расстройств пищевого поведения»</p></bio><email>drkarpenko@gmail.com</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0009-0007-2510-3128</contrib-id><contrib-id contrib-id-type="spin">6859-8834</contrib-id><name-alternatives><name xml:lang="en"><surname>Satyanova</surname><given-names>Lyudmila S.</given-names></name><name xml:lang="ru"><surname>Сатьянова</surname><given-names>Людмила Степановна</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>MD, Cand. Sci (Med.), Head of the Eating Disorders Clinic</p></bio><bio xml:lang="ru"><p>к.м.н., заведующая Центром терапии расстройств приема пищи «Клиника расстройств пищевого поведения»</p></bio><email>drkarpenko@gmail.com</email><xref ref-type="aff" rid="aff1"/></contrib></contrib-group><aff-alternatives id="aff1"><aff><institution xml:lang="en">Mental-health clinic No. 1 named after N.A. Alexeev</institution></aff><aff><institution xml:lang="ru">ГБУЗ «Психиатрическая клиническая больница № 1 им. Н.А. Алексеева Департамента здравоохранения города Москвы»</institution></aff></aff-alternatives><pub-date date-type="pub" iso-8601-date="2025-12-18" publication-format="electronic"><day>18</day><month>12</month><year>2025</year></pub-date><volume>6</volume><issue>4</issue><issue-title xml:lang="en"/><issue-title xml:lang="ru"/><fpage>5</fpage><lpage>22</lpage><history><date date-type="received" iso-8601-date="2025-07-28"><day>28</day><month>07</month><year>2025</year></date><date date-type="accepted" iso-8601-date="2025-12-18"><day>18</day><month>12</month><year>2025</year></date></history><permissions><copyright-statement xml:lang="en">Copyright ©; 2025, Karpenko O.A., Syunyakov T.S., Berdalin A.B., Evlampieva A.V., Andrianova O.V., Gilmutdinova L.E., Novichkova A.V., Aleksanian A.K., Nikolkina J.A., Mazurova E.V., Shafarenko A.A., Satyanova L.S.</copyright-statement><copyright-statement xml:lang="ru">Copyright ©; 2025, Карпенко О.А., Сюняков Т.С., Бердалин А.Б., Евлампиева А.В., Андрианова О.В., Гильмутдинова Л.Э., Новичкова А.В., Алексанян А.К., Николкина Ю.А., Мазурова Е.В., Шафаренко А.А., Сатьянова Л.С.</copyright-statement><copyright-year>2025</copyright-year><copyright-holder xml:lang="en">Karpenko O.A., Syunyakov T.S., Berdalin A.B., Evlampieva A.V., Andrianova O.V., Gilmutdinova L.E., Novichkova A.V., Aleksanian A.K., Nikolkina J.A., Mazurova E.V., Shafarenko A.A., Satyanova L.S.</copyright-holder><copyright-holder xml:lang="ru">Карпенко О.А., Сюняков Т.С., Бердалин А.Б., Евлампиева А.В., Андрианова О.В., Гильмутдинова Л.Э., Новичкова А.В., Алексанян А.К., Николкина Ю.А., Мазурова Е.В., Шафаренко А.А., Сатьянова Л.С.</copyright-holder><ali:free_to_read xmlns:ali="http://www.niso.org/schemas/ali/1.0/"/><license><ali:license_ref xmlns:ali="http://www.niso.org/schemas/ali/1.0/">https://creativecommons.org/licenses/by-nc-nd/4.0</ali:license_ref></license></permissions><self-uri xlink:href="https://consortium-psy.com/jour/article/view/15730">https://consortium-psy.com/jour/article/view/15730</self-uri><abstract xml:lang="en"><p><bold>BACKGROUND:</bold> Anorexia nervosa (AN) is characterized by heterogeneous clinical manifestations, which complicates diagnosis and treatment. It is important to define the clinical variants and therapeutic targets for AN.</p> <p><bold>AIM:</bold> To identify empirical patient phenotypes within the AN diagnostic category using Latent Class Analysis (LCA) of clinically assessed psychopathological symptoms.</p> <p><bold>METHODS:</bold> Psychiatrists clinically assessed psychopathological symptoms of AN using an original checklist (57 symptoms in total) and the Mini-International Neuropsychiatric Interview (M.I.N.I.) was used to identify mental disorders. Patients completed the Symptom Check List-90-Revised questionnaire (SCL-90-R) to self-assess psychopathological symptoms and distress. Clinically homogeneous patient subgroups were identified using LCA.</p> <p><bold>RESULTS:</bold> A total of 115 patients with AN were examined. Based on the LCA, four patient groups (C1–C4) were identified, with high classification certainty (R²=0.908), model significance (<italic>p</italic>&lt;0.001), and clear separation of the latent groups (class separation index = 0.957). ED-related symptoms were key determinants of class formation only in 68 patients (59%) — those in C1 and C3. No statistically significant differences were found between classes on any SCL-90-R subscales or most M.I.N.I. diagnoses. In C1 (<italic>n</italic>=41), core ED symptoms dominated: dysmorphophobia, fears related to eating, weight gain, loss of control. In C2, low frequencies are observed for core ED symptoms; this group was characterized by a high incidence of sleep disturbances, anxiety, apathy, melancholy, and anhedonia. C3 represents a polymorphic clinical profile with a combination of core ED symptoms, affective symptoms, thought disorders, cognitive impairments, and sleep disturbances. C4 was defined by the presence of hypochondriacal concerns, somatoform autonomic symptoms, and apathy; none of the core ED symptoms were typical for C4.</p> <p><bold>CONCLUSION:</bold> Four empirically derived clinical phenotypes of AN were identified, each characterized by a distinct symptomatic profile. Each phenotype was defined by specific combinations of core ED symptoms and general psychopathological manifestations.</p></abstract><trans-abstract xml:lang="ru"><p><bold>ВВЕДЕНИЕ: </bold>Нервная анорексия (НА) характеризуется гетерогенными клиническими проявлениями, что затрудняет ее диагностику и лечение. Описание клинических вариантов и мишеней терапии НА является актуальной задачей.</p> <p><bold>ЦЕЛЬ:</bold> Изучение наличия эмпирических фенотипов пациентов внутри диагностической категории «нервная анорексия» с применением анализа латентных классов (LCA) психопатологических симптомов, выявленных в результате клинической оценки психического состояния врачами-психиатрами.</p> <p><bold>МЕТОДЫ:</bold> Психопатологические симптомы НА были клинически оценены психиатрами с использованием оригинального чек-листа (всего 57 симптомов), для выявления психических расстройств применялся опросник Mini-International Neuropsychiatric Interview (M.I.N.I.). Для самооценки психопатологических симптомов и дистресса пациенты использовали опросник Symptom Check List-90-Revised (SCL-90-R). Клинически гомогенные подгруппы пациентов были выделены с помощью LCA.</p> <p><bold>РЕЗУЛЬТАТЫ</bold>: Обследовано 115 пациентов с НА. По результатам LCA выделены 4 группы пациентов (К1–К4) с высокой определенностью классификации (R²=0,908), значимостью модели (<italic>p</italic>&lt;0,001) и четким разделением латентных групп (индекс несходства классов = 0,957). Симптомы расстройства пищевого поведения (РПП) являлись ключевыми для формирования кластера только у 68 (59%) — в группах К1 и К3. Статистически значимых различий между классами по субшкалам SCL-90-R или большинству диагнозов M.I.N.I. выявлено не было. В группе К1 (<italic>n</italic>=41) доминировали ключевые симптомы РПП: дисморфофобия, страхи, связанные с едой, набором веса, потерей контроля. В группе К2 наблюдалась низкая частота ключевых симптомов РПП, для этой группы была характерна высокая распространенность нарушений сна, тревоги, апатии, тоски и ангедонии. Группа К3 представляет полиморфный клинический профиль с сочетанием ключевых симптомов РПП, аффективных симптомов, расстройств мышления, когнитивных нарушений и нарушений сна. Группа К4 определялась наличием ипохондрических опасений, соматоформных вегетативных симптомов и апатии; ни один из ключевых симптомов РПП не был типичен для К4.</p> <p><bold>ЗАКЛЮЧЕНИЕ: </bold>Выделены 4 эмпирических клинических фенотипа НА, каждый из которых отличался уникальным симптоматическим профилем. Были определены специфичные для каждой группы симптомы, которые включали ключевые симптомы расстройства пищевого поведения и общие психопатологические проявления.</p></trans-abstract><kwd-group xml:lang="en"><kwd>anorexia nervosa</kwd><kwd>latent class analysis</kwd><kwd>psychopathology</kwd><kwd>phenomenology</kwd></kwd-group><kwd-group xml:lang="ru"><kwd>нервная анорексия</kwd><kwd>анализ латентных классов</kwd><kwd>психопатология</kwd><kwd>феноменология</kwd></kwd-group><funding-group><award-group><funding-source><institution-wrap><institution xml:lang="en">Moscow Department of Healthcare</institution></institution-wrap><institution-wrap><institution xml:lang="ru">Департамент здравоохранения города Москвы</institution></institution-wrap></funding-source><award-id>1196</award-id></award-group><funding-statement xml:lang="en">The study was conducted under a state-funded research project on the “Comprehensive Treatment of Patients with Severe Adult Anorexia Nervosa” (registration number in the Information System for Accounting of ScientificResearch, ExperimentalDesign, and Technological Studies No. 123031600073-0).</funding-statement><funding-statement xml:lang="ru">Работа выполнена по государственному заданию «Комплексное лечение больных с тяжелыми формами анорексии у взрослых» (ЕГИСУ НИОКТР регистрационный № 123031600073-0).</funding-statement></funding-group></article-meta></front><body></body><back><ref-list><ref id="B1"><label>1.</label><mixed-citation>6B80 Anorexia Nervosa [Internet]. 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