ISSN: 2149-2247 | E-ISSN: 2149-2549

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Relationship Between the Vitamin D Status and the Season, Place of Living, Age, Gender, and Chronic Disease [Erciyes Med J]
Erciyes Med J. 2020; 42(1): 78-83 | DOI: 10.14744/etd.2019.45577

Relationship Between the Vitamin D Status and the Season, Place of Living, Age, Gender, and Chronic Disease

Sevil Okan1, Fatih Okan2, Osman Demir3
1Department of Physical Treatment and Rehabilitation, Tokat State Hospital, Tokat, Turkey
2Department of Public Health Nursing, Gaziosmanpaşa University Faculty of Health Sciences, Tokat, Turkey
3Department of Biostatistic, Gaziosmanpaşa University Faculty of Health Medicine, Tokat, Turkey

Objective: The aim of the present study was to investigate the variations in 25-OH Vitamin D levels considering age, gender, the place of living, season, and presence of chronic disease.
Materials and Methods: Individuals whose 25-OH Vitamin D levels were measured in seven state hospitals in the Tokat Province, Turkey, between September 2016 and August 2017 were selected using the hospital information system and included in this retrospective study.
Results: The study included a total of 22,044 individuals aged ≥18 years. Vitamin D deficiency and insufficiency were observed in 89.4% of the individuals surveyed. Of all participants, 78.7% (n=17.328) were female, and 74.3% (n=16.377) were living in urban areas. An average 25-OH Vitamin D level was significantly low in people living in urban areas (15±12.4 ng/ml) compared to those living in rural areas (15.4±11.5 ng/ml; p=0.03). An average seasonal 25-OH Vitamin D level was the lowest in the winter (13.4±11.5 ng/ml) and the highest in the summer season (17±12.1 ng/ml; p<0.001). An average 25-OH Vitamin D level was 15.1±12.2 ng/ml, which was significantly higher in men (17.6±9.9 ng/ml) than in women (14.4±12.6 ng/ml) (p<0.001). The average 25-OH Vitamin D level of subjects who did not have a chronic disease was significantly lower than in those who had only hypertension, heart disease, or multiple sclerosis (14.40±11.73, 15.67±12.72, 17.42±13.13, and 19.50±14.88, respectively; p<0.005).
Conclusion: It was found that Vitamin D deficiency was associated with the place of living, age, gender, and season of the year. An average 25-OH Vitamin D level was significantly higher in individuals with hypertension, heart disease, and multiple sclerosis.

Keywords: Vitamin D, season, living place, gender.

Sevil Okan, Fatih Okan, Osman Demir. Relationship Between the Vitamin D Status and the Season, Place of Living, Age, Gender, and Chronic Disease. Erciyes Med J. 2020; 42(1): 78-83

Corresponding Author: Sevil Okan, Türkiye
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