the relationship between serum 25-hydroxyvitamin d levels and metabolic syndrome in birjand children, east of iran

background: metabolic syndrome (ms) is an important risk factor that is associated with vitamin d deficiency, according to recent studies. this study aimed to evaluate the relationship between serum 25-hydroxyvitamin d level and risk of metabolic syndrome in children in birjand. materials and methods: a case-control study on 6 to 18 years old metabolic syndrome patients, this investigation was performed in birjand university of medical sciences, cardiovascular research center. thirty six children were enrolled in a non-random sampling manner, and the data were analyzed using spss-13 using independent t-test and chi square. results: a total of 36 children entered the study (n=18 per group). the mean serum levels of vitamin d in metabolic and non-metabolic groups was 11.61±3.79 and 14.09±6.41 ng/ml (p>0.05), respectively. the mean serum levels of vitamin d in the group with normal and abnormal triglyceride levels were 11.05±3.80 and 14.65±6.12 ng/ml, respectively (p<0.05). conclusion: the prevalence of vitamin d deficiency and insufficiency among children was high. also, no association was found between vitamin d deficiency and metabolic syndrom. controlled longitudinal studies are needed to better define the relationship between vitamin d status and pediatric metabolic syndrome.