Vitamin D Deficiency and Associated Factors; An Observational Retrospective Study of 35,620 Vitamin D Levels

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dc.authoridkilic saglam, Mukaddes/0000-0002-7231-5461
dc.contributor.authorSaglam, Mukaddes Kilic
dc.contributor.authorYanasoglu, Emine
dc.date.accessioned2025-10-11T20:48:37Z
dc.date.available2025-10-11T20:48:37Z
dc.date.issued2025
dc.departmentDüzce Üniversitesien_US
dc.description.abstractObjectiveVitamin D deficiency represents a significant public health issue worldwide. In this study, the aim of this study was contribute to the existing literature on vitamin D prophylaxis practices by determining the prevalence of vitamin D deficiency among children and identifying the associated risk factors.MethodsThe 25-hydroxyvitamin D (25(OH)D) levels of 35,620 healthy children aged 0-18 years, who applied to the Pediatric Outpatient Clinic of D & uuml;zce University Faculty of Medicine, were retrospectively analyzed based on age groups, gender, seasons, and years.ResultsThe mean serum 25(OH)D level was 21 +/- 12.37 ng/mL (range: 3-99.8 ng/mL; median: 18.8 ng/mL). Serum 25(OH)D levels were <= 20 ng/mL in 19,484 patients (54.7%). Among these, 8099 patients (22.7%) were classified as having vitamin D deficiency, while 11,385 patients (32%) had vitamin D insufficiency. No statistically significant association was found between 25(OH)D levels or the prevalence of vitamin D deficiency and season, age groups, gender, or years.ConclusionOur study demonstrates that vitamin D deficiency is highly prevalent among children. To prevent this deficiency, it is essential to promote the consumption of foods containing vitamin D, ensure adequate and appropriate sunlight exposure, and implement routine prophylactic vitamin D supplementation for all children aged 0-18 years.en_US
dc.description.sponsorshipScientific and Technological Research Council of Turkiye (TUBITAK)en_US
dc.description.sponsorshipOpen access funding provided by the Scientific and Technological Research Council of Turkiye (TUBITAK)en_US
dc.identifier.doi10.1007/s44411-025-00248-9
dc.identifier.endpage2736en_US
dc.identifier.issn0006-9248
dc.identifier.issn1336-0345
dc.identifier.issue10en_US
dc.identifier.scopus2-s2.0-105009473364en_US
dc.identifier.scopusqualityQ2en_US
dc.identifier.startpage2728en_US
dc.identifier.urihttps://doi.org/10.1007/s44411-025-00248-9
dc.identifier.urihttps://hdl.handle.net/20.500.12684/22024
dc.identifier.volume126en_US
dc.identifier.wosWOS:001520025300001en_US
dc.identifier.wosqualityQ2en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.language.isoenen_US
dc.publisherSpringernatureen_US
dc.relation.ispartofBratislava Medical Journalen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/openAccessen_US
dc.snmzKA_WOS_20250911
dc.subjectChilden_US
dc.subjectVitamin Den_US
dc.subjectVitamin D deficiencyen_US
dc.subjectVitamin D prophylaxisen_US
dc.titleVitamin D Deficiency and Associated Factors; An Observational Retrospective Study of 35,620 Vitamin D Levelsen_US
dc.typeArticleen_US

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