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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">ymj</journal-id><journal-title-group><journal-title xml:lang="ru">Якутский медицинский журнал</journal-title><trans-title-group xml:lang="en"><trans-title>Yakut Medical Journal</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">1813-1905</issn><issn pub-type="epub">2312-1017</issn><publisher><publisher-name>ЯНЦ КМП</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.25789/YMJ.2025.91.23</article-id><article-id custom-type="elpub" pub-id-type="custom">ymj-1707</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, САНИТАРИЯ, ЭПИДЕМИОЛОГИЯ И МЕДИЦИНСКАЯ ЭКОЛОГИЯ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>HYGIENE, SANITATION, EPIDEMIOLOGY AND MEDICAL ECOLOGY</subject></subj-group></article-categories><title-group><article-title>Климатические и этнические модификаторы фетометрических показателей: сравнительный региональный анализ</article-title><trans-title-group xml:lang="en"><trans-title>Climatic and ethnic modifiers of fetal biometric parameters: a comparative regional analysis</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-5641-0269</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Иутинский</surname><given-names>Э. М.</given-names></name><name name-style="western" xml:lang="en"><surname>Iutinsky</surname><given-names>E. M.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Иутинский Эдуард Михайлович – к.м.н., доцент.</p><p>610998, Кировская область, г. Киров, улица К. Маркса, 112</p></bio><email xlink:type="simple">iutinskiy@ya.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/0000-0001-8195-0996</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Железнов</surname><given-names>Л. М.</given-names></name><name name-style="western" xml:lang="en"><surname>Zheleznov</surname><given-names>L. M.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Железнов Лев Михайлович – д.м.н., проф., ректор.610998, Кировская область, г. Киров, улица К. Маркса, 112</p></bio><email xlink:type="simple">rector@kirovgma.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/0000-0002-5632-0447</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Дворянский</surname><given-names>С. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Dvoryansky</surname><given-names>S. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Дворянский Сергей Афанасьевич – д.м.н., проф., зав. Кафедрой.</p><p>610998, Кировская область, Киров, улица К. Маркса, 112</p></bio><email xlink:type="simple">Kf1@kirovgma.ru</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff xml:lang="ru" id="aff-1"><institution>ФГБОУ ВО «Кировский государственный медицинский университет» Минздрава России</institution><country>Russian Federation</country></aff><pub-date pub-type="collection"><year>2025</year></pub-date><pub-date pub-type="epub"><day>22</day><month>09</month><year>2025</year></pub-date><volume>0</volume><issue>3</issue><fpage>105</fpage><lpage>109</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Иутинский Э.М., Железнов Л.М., Дворянский С.А., 2025</copyright-statement><copyright-year>2025</copyright-year><copyright-holder xml:lang="ru">Иутинский Э.М., Железнов Л.М., Дворянский С.А.</copyright-holder><copyright-holder xml:lang="en">Iutinsky E.M., Zheleznov L.M., Dvoryansky S.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://ymj.elpub.ru/jour/article/view/1707">https://ymj.elpub.ru/jour/article/view/1707</self-uri><abstract><p>Климатические колебания и этническая неоднородность популяции способны смещать нормативы внутриутробного роста, однако их совместное действие практически не изучено. Температура воздуха, продолжительность светового дня и сезон беременности в сочетании с этнической принадлежностью матери модифицируют фетометрию плода и массу новорожденного. В ретроспективный когортный анализ включены 1 812 одноплодных беременностей, завершившихся в 2018-2024 гг. Фетометрические параметры (БПР, ЛЗР, ОГ, ОЖ, ДБ) определялись по единым протоколам УЗ-скрининга. Климатические данные по триместрам (средняя температура, число солнечных дней, длительность фотопериода) получены из Росгидромета. Этнические группы: русские, татары, марийцы, удмурты. Использованы двухфакторный ANOVA и многоуровневая линейная модель, скорректированные по гестационному возрасту. Третий триместр беременности, протекавший в весенне-летний период (+4 °C к среднегодовой норме) ассоциировался с увеличением окружности живота на 3,1% (p &lt; 0,01) и массы новорожденных на 112 г. Этнический фактор проявлялся с 24-й недели: у финно-угорских групп отмечено достоверное уменьшение длины бедра (-2,4 мм) при одновременном увеличении ОЖ (+6,5 мм). В модели массы новорожденного климатические предикторы объяснили 18% вариации, этнос – 7%, их взаимодействие – 4%. Кроме того, учет этих факторов повысил точность прогнозной модели Estimated Fetal Weight на 9 % по сравнению со стандартной формулой Hadlock. Климатические условия и этнокультурная принадлежность формируют самостоятельные и взаимозависимые траектории внутриутробного роста, суммарно определяя около трети вариации массы при рождении. Полученные данные обосновывают необходимость сезонно-этнических поправок при оценке фетометрии.</p></abstract><trans-abstract xml:lang="en"><p>Climatic fluctuations and the ethnic heterogeneity of the population can shift the standards of intrauterine growth; however, their combined effect has been little studied. Air temperature, day length, and pregnancy season, in combination with the mother's ethnicity, modify fetal biometry and newborn weight. A retrospective cohort analysis included 1,812 singleton pregnancies completed between 2018 and 2024. Fetal biometric parameters (BPD, OFD, HC, AC, FL) were measured according to unified ultrasound screening protocols. Climatic data by trimester (mean temperature, number of sunny days, photoperiod duration) were obtained from Roshydromet. Ethnic groups: Russians, Tatars, Mari, Udmurts. Two-way ANOVA and multilevel linear modeling adjusted for gestational age were used. The third trimester of pregnancy, occurring in the spring–summer period (+4°C above annual average), was associated with a 3.1% increase in abdominal circumference (p &lt; 0.01) and an increase in newborn weight by 112 g. The ethnic factor manifested from week 24: Finno-Ugric groups showed a significant reduction in femur length (–2.4 mm) with a simultaneous increase in AC (+6.5 mm). In the newborn weight model, climatic predictors explained 18% of the variance, ethnicity 7%, and their interaction 4%. Furthermore, accounting for these factors improved the accuracy of the Estimated Fetal Weight prediction model by 9% compared to the standard Hadlock formula. Climatic conditions and ethnocultural background form independent and interdependent trajectories of intrauterine growth, cumulatively accounting for about one-third of the variance in birth weight. These data substantiate the need for seasonal and ethnic adjustments when assessing fetal biometry.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>климатические факторы</kwd><kwd>фетометрия</kwd><kwd>этническая принадлежность</kwd><kwd>сезон беременности</kwd><kwd>масса новорожденного</kwd><kwd>региональные нормы</kwd><kwd>беременность</kwd></kwd-group><kwd-group xml:lang="en"><kwd>climatic factors</kwd><kwd>fetal biometry</kwd><kwd>ethnicity</kwd><kwd>pregnancy season</kwd><kwd>birth weight</kwd><kwd>regional standards</kwd><kwd>pregnancy</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">Ильющенко Н.А. Особенности физического развития новорожденных и детей раннего возраста, проживающих на территории Среднего Приобья: автореферат диссертации ... кандидата медицинских наук: 14.03.01 / Ильющенко, Наталья Александровна. 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