Vitamin D deficiency in the general population

Introduction: Vitamin D has been a subject of significant interest among scientists from various scientific fields in recent decades. Its discovery has led to numerous changes in therapy, diagnostics and the treatment of certain diseases. It is believed that almost every cell in the human body possesses receptors for vitamin D. This article examines vitamin D levels from multiple perspectives. The study is based on patient samples collected from individuals undergoing medical treatment. It integrates hygienic, socio-statistical, and epidemiological public health measures to inform readers about the importance of proper adherence to preventive health guidelines in order to maintain adequate vitamin D levels and mitigate the risk of serious diseases. Numerous studies suggest that a slight lack of vitamin D is connected to certain diseases in every organ system.Aim: The Aim of this study is to provide analysis of vitamin D levels in the blood of 553 patients over a three-year period at a secondary-level healthcare institution, namely Vrbas General Hospital.Material and Method: A retrospective analysis was conducted on data from patients whose blood samples were collected and tested for vitamin D levels between 2018 to 2020 at Vrbas General Hospital. The analysis identified significant parameters related to vitamin D status. In data processing, the following statistical methods were used to confirm the hypothesis: χ2 test, two-factor analysis of variance (ANOVA) and regression analysis.Results: Applying the strictest significance criterion p0.001, a statistically significant difference was observed in the number of respondents across the predefined vitamin D categories, including deficiency and hypervitaminosis.Conclusion: Our findings clearly show that vitamin D levels among patients at Vrbas General Hospital are significantly lower, in percentage terms, compared to those reported in other countries worldwide. Notably, the prevalence of hypervitaminosis was only 0.72% among of the total sample tested.