ABSTRACT.
Objective: to study the concentration of vitamin D in the blood serum of primary school-age children living in Khanty-Mansiysk. A total of 144 primary school students from Khanty-Mansiysk were examined. Of these, 53 (36,8%) were boys and 91 (63,2%) were girls, with an average age of 8,7±1,3 years. The concentration of vitamin D in the blood serum was determined using the enzyme-linked immunosorbent assay. The average values of vitamin D concentration were below the minimum limit of physiologically optimal values: 18 (12,5%) primary school students were adequately provided with this vitamin, its deficiency was established in 61 (42,4%) of observations, deficiency was detected in 57 (39,6%), and severe deficiency characterized the vitamin D status of 8 (5,5%) northern children. To improve health and prevent the development of pathological conditions associated with vitamin D deficiency, it is necessary to improve diet, take vitamin D-containing dietary supplements, and optimize physical activity.
KEYWORDS: primary school children, North, blood serum, vitamin D, calcium.
For citation: Kozlovsky I.V. Vitamin D access in primary schoolchildren Khanty-Mansiysk. Trace elemets in medicine. 2025;26(4):41-46. DOI: 10.19112/2413-6174-2025-26-4-41-46
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Information about the author:
Ilya V. Kozlovsky – Post-graduate Student, Department of Physiology and Sports Medicine
E-mail: info@ra-kurs.ru; http://orcid.org/0000-0001-8683-7319
Поступила 21 октября 2025 года
Принята к публикации 2 декабря 2025 года