Vitamin D levels of outpatients admitted to a university hospital in the marmara region of Turkey over 3 years

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Sezgin G., Ozturk G., Turkal R., Caykara B.

Journal of Medical Biochemistry, cilt.38, sa.2, ss.181-187, 2019 (Scopus)

Özet

Background Vitamin D regulates calcium and phosphorus metabolism, and it is essential for bone formation. Several factors can affect Vitamin D levels in plasma. In present study we compare Vitamin D levels of outpatients, who admit to Maltepe University Hospital between 2011 and 2013 and had Vitamin D measurements regarding gender, age, and season. Methods Hospital records were evaluated to identify the outpatients with Vitamin D levels and their gender, age, and Vitamin D levels and the seasons of measurements were recorded. Results Data of 4860 subjects (74% female) were analyzed and 69.2% were between 18-64 years old. Vitamin D levels were as follows: 43.1% ≤ 10 ng/mL, 31.9% between 10 ng/mL and 20 ng/mL, 16.1% between 20 ng/mL and 30 ng/mL, and only 8.9% ≥ 30 ng/mL. The number of females with Vitamin D levels < 10 ng/mL was significantly higher than that of males, while the number of males with Vitamin D levels between 10 ng/mL and 20 ng/mL was significantly higher than that of females (P = 0.001) for each of the individuals, 6.2% and 11.1% had sufficient levels in winter and summer, respectively. Overall, it was observed that 6.6% of individuals between 18-44 years old, 8.2% of individuals between 45-64 years old and 10.3% of individuals over 65 years old had Vitamin D levels > 30 ng/mL. Conclusions The prevalence of Vitamin D deficiency in outpatients of Maltepe University Hospital in Marmara region was 75% (< 20 ng/mL).