Research Article

SEASONAL VARIATION OF VITAMIN-D LEVELS IN THE ADULT POPULATION IN ISTANBUL/TURKEY: A POPULATION-BASED STUDY

Volume: 6 Number: 3 October 24, 2023
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SEASONAL VARIATION OF VITAMIN-D LEVELS IN THE ADULT POPULATION IN ISTANBUL/TURKEY: A POPULATION-BASED STUDY

Abstract

Objective: The current research examined if there is a variance in the frequency of vitamin D deficiency or insufficiency among adults visiting the hospital for medical problems in winter and summer, and whether comorbidities have an impact on this. Material and Method: A total of 1155 patients (771 women, 384 men, mean age:48±15 years) who were admitted to the outpatient clinics of Istanbul Medeniyet University Goztepe Training and Research Hospital in August and February were tested for 25(OH)D levels for any reason were included. A 25(OH)D level of<20 ng/ml was stated as inadequacte, and 20–29 ng/ml was defined as insufficient. The two groups were examined in contrast in terms of vitamin D deficiency and insufficiency and the frequency of comorbidities. Results: 25(OH)D levels were inferior in the winter compared to the summer (16.1±12.5 ng/ml versus 22.2±15.8 ng/ml, p<0.001). Vitamin D deficiency was detected in 769 (66.6%) patients, and vitamin D insufficiency was detected in 226 (19.6%). Furthermore, 51.9% and 78.6% of patients had vitamin D deficiency (p< 0.001) and 27.3% and 13.1% had vitamin D insufficiency (p<0.001) during summer and winter, respectively. Prevalence rates of diabetes (60.1% and 39.9%, respectively, p=0.04) and hypertension (62.7% and 37.3%, accordingly, p<0.01) were more common in the winter compared to the summer. Conclusion: The findings of this research show that vitamin D insufficiency and deficiency are well-known health issues in Turkey, and although there has been some improvement, the problem persists even during the sunny seasons.

Keywords

References

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Details

Primary Language

English

Subjects

Clinical Sciences (Other)

Journal Section

Research Article

Publication Date

October 24, 2023

Submission Date

May 6, 2023

Acceptance Date

June 12, 2023

Published in Issue

Year 2023 Volume: 6 Number: 3

APA
Eken, E., Uzunlulu, M., Köstek, O., İşman, F., & Oğuz, A. (2023). SEASONAL VARIATION OF VITAMIN-D LEVELS IN THE ADULT POPULATION IN ISTANBUL/TURKEY: A POPULATION-BASED STUDY. Journal of Advanced Research in Health Sciences, 6(3), 270-275. https://doi.org/10.26650/JARHS2023-1293558
AMA
1.Eken E, Uzunlulu M, Köstek O, İşman F, Oğuz A. SEASONAL VARIATION OF VITAMIN-D LEVELS IN THE ADULT POPULATION IN ISTANBUL/TURKEY: A POPULATION-BASED STUDY. Journal of Advanced Research in Health Sciences. 2023;6(3):270-275. doi:10.26650/JARHS2023-1293558
Chicago
Eken, Erhan, Mehmet Uzunlulu, Osman Köstek, Ferruh İşman, and Aytekin Oğuz. 2023. “SEASONAL VARIATION OF VITAMIN-D LEVELS IN THE ADULT POPULATION IN ISTANBUL TURKEY: A POPULATION-BASED STUDY”. Journal of Advanced Research in Health Sciences 6 (3): 270-75. https://doi.org/10.26650/JARHS2023-1293558.
EndNote
Eken E, Uzunlulu M, Köstek O, İşman F, Oğuz A (October 1, 2023) SEASONAL VARIATION OF VITAMIN-D LEVELS IN THE ADULT POPULATION IN ISTANBUL/TURKEY: A POPULATION-BASED STUDY. Journal of Advanced Research in Health Sciences 6 3 270–275.
IEEE
[1]E. Eken, M. Uzunlulu, O. Köstek, F. İşman, and A. Oğuz, “SEASONAL VARIATION OF VITAMIN-D LEVELS IN THE ADULT POPULATION IN ISTANBUL/TURKEY: A POPULATION-BASED STUDY”, Journal of Advanced Research in Health Sciences, vol. 6, no. 3, pp. 270–275, Oct. 2023, doi: 10.26650/JARHS2023-1293558.
ISNAD
Eken, Erhan - Uzunlulu, Mehmet - Köstek, Osman - İşman, Ferruh - Oğuz, Aytekin. “SEASONAL VARIATION OF VITAMIN-D LEVELS IN THE ADULT POPULATION IN ISTANBUL TURKEY: A POPULATION-BASED STUDY”. Journal of Advanced Research in Health Sciences 6/3 (October 1, 2023): 270-275. https://doi.org/10.26650/JARHS2023-1293558.
JAMA
1.Eken E, Uzunlulu M, Köstek O, İşman F, Oğuz A. SEASONAL VARIATION OF VITAMIN-D LEVELS IN THE ADULT POPULATION IN ISTANBUL/TURKEY: A POPULATION-BASED STUDY. Journal of Advanced Research in Health Sciences. 2023;6:270–275.
MLA
Eken, Erhan, et al. “SEASONAL VARIATION OF VITAMIN-D LEVELS IN THE ADULT POPULATION IN ISTANBUL TURKEY: A POPULATION-BASED STUDY”. Journal of Advanced Research in Health Sciences, vol. 6, no. 3, Oct. 2023, pp. 270-5, doi:10.26650/JARHS2023-1293558.
Vancouver
1.Erhan Eken, Mehmet Uzunlulu, Osman Köstek, Ferruh İşman, Aytekin Oğuz. SEASONAL VARIATION OF VITAMIN-D LEVELS IN THE ADULT POPULATION IN ISTANBUL/TURKEY: A POPULATION-BASED STUDY. Journal of Advanced Research in Health Sciences. 2023 Oct. 1;6(3):270-5. doi:10.26650/JARHS2023-1293558