Thyroid Diseases with Vitamin D Deficiency in Erbil city


  • Aso Omar Department of Biology, Faculty of Science, Van Yüzüncü Yıl University, Van-TURKEY.
  • Muhammed Sherwan Qadir Department of Pathological Analysis, Faculty of Science, Knowledge University, Erbil, Kurdistan Region –IRAQ.
  • Gulstan Mudhafar Mokhtar Department of Biology, Faculty of Science and Health, Koya University, Koya, Kurdistan Region –IRAQ.
  • Bnar Mudhafar Mokhtar Department of Biology, Faculty of Science and Health, Koya University, Koya, Kurdistan Region –IRAQ.


Vitamin D, Thyroid disease, FT3, FT4, TSH


Vitamin D is essential for the proper growth and development of a child and is associated with numerous public health issues. Our study aimed to examine the relationship between vitamin D deficiency and thyroid diseases. Vitamin D sufficiency is defined in terms of the serum level of the prohormone 25(OH)D which is 30 ng/mL. Vitamin D level less than of it is considered as vitamin D deficiency. A total of 100 subjects were included in the present study who visited the Central Laboratory in Erbil for health examination between the beginning of September to the beginning of December 2020. The findings of the present study show a high prevalence of vitamin D deficiency (79%) among Erbil population. There was a negative correlation between Vitamin D serum levels and TSH levels (r = - 0.154) with a positive correlation between vitamin D serum levels and FT3 levels (r = 0.168) and FT4 levels (r = 0.122). The results showed that patients with vitamin D deficiency suffered from hypothyroidism. Additionally, the positive significant correlation between thyroid hormones with vitamin D and that negative significant correlation with TSH levels, suggested that low vitamin D levels are significantly associated with the severity of hypothyroidism which encourages the advisability of vitamin D supplementation.


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How to Cite

Omar, A., Qadir, M. S., Mokhtar, G. M., & Mokhtar, B. M. (2021). Thyroid Diseases with Vitamin D Deficiency in Erbil city. Advances in BioScience, 12(1), 10–13. Retrieved from




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