Vitamin d deficiency and its association with thyroid disease

Introduction:The evidence is increasingly pointing towards vitamin D significant role in reducing the incidence of autoimmune diseases. In this study we aimed to examine the relationship between hypothyroidism and vitamin D deficiency. Method:This research is done in Istanbul Sisli Hamidiye Etfal Training and Research Hospital Family Medicine Policlinics, among patients aged 65 years, by evaluating retrospectively serum vitamin D,and its relation with TSH levels. The study was conducted between November, December 2015 and January 2016. In SPSS 20.0 program we used frequency, chi-square for analysis. Results:There were 322 patients tested for serum 25(OH)D and TSH levels. 61.2% (n=197) patients had low vitamin D levels. Of the study group 75.5%(n=243) were women, 24.5%(n=79) were men. Vitamin D deficiency were 58%(n=141) in women and 70.9%(n=56) in men (p=0.042) that meant.Patients who had vitamin D treatment 45.3%(n=146), 74%(n=108) were women and 26%(n=38) were men (p>0.571). 67.9%(n=38) of the patients who were given vitamin D treatment were also had levothyroxin replacement treatment (p<0.005). By other means patients who were given hypothyroidism treatment 26%(n=38) were also given vitamin D treatment(p<0.005). Conclusion:Our results indicated that vitamin D deficiency was very common in our population and it is related with hypothyroidism. So all health staff especially who work in primary health care centers should pay attention to screen patients who had serum vitamin D level for also TSH levels and it is also useful for reverse conditions.