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

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Relation of Vitamin D Status with Season, Living Place, Age Gender and Chronic Disease [Erciyes Med J]
Erciyes Med J. Ahead of Print: EMJ-45577 | DOI: 10.14744/etd.2019.45577

Relation of Vitamin D Status with Season, Living Place, Age Gender and Chronic Disease

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

Objective: The aim of the present study was to investigate the variations in 25-OH Vitamin D levels based on age, gender, living place, season and presence of chronic disease.
Methods: Individuals whose 25-OH Vitamin D levels were measured in seven state hospitals in Tokat Province of Turkey during September 2016-August 2017 period were determined using hospital information system and included in this retrospective study.
Results: The study included 22,044 individuals who were 18 years of age and over. Vitamin D deficiency and insufficiency was 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. Average 25-OH Vitamin D level was significantly low in people living in urban areas (15±12.4 ng/ml) compared to ones in rural areas (15.4±11.5 ng/ml) (p=0.03). Average seasonal 25-OH Vitamin D level was lowest in winter (13.4±11.5 ng/ml) and highest in summer season (17±12.1 ng/ml) (p<0.001). 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). Average 25-OH Vitamin D level of subjects who did not have a chronic disease was significantly lower than those who had only hypertension, heart disease or multiple sclerosis diagnosis (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 living place, age, gender and season of the year. 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.

Corresponding Author: Sevil Okan, Türkiye
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