RESUMO
Background: Several studies have shown an association between 25-hydroxyvitamin D (Vitamin D) levels and multiple sclerosis (MS). This study aimed to evaluate association between age at onset of Multiple Sclerosis and vitamin D level in Saudi population.Methods: This cross-sectional study was performed in the Neurology Department king Fahd Military Hospital Jeddah in the Kingdom of Saudi Arabia (KSA) included 75 patients with MS and 99 healthy controls group matched for gender and age. Comparing vitamin D measurement in multiple sclerosis patients at the time of diagnosis with healthy controls group.Results: We found no significant association between age at onset of multiple sclerosis and vitamin D level in Saudi population p value (0.723). However we also found that 74.66% of the sample Members who had MS and has a deficient of vitamin D and 83.83% people of the sample members didn’t have MS, but vitamin D was deficient with them.Conclusions: Study has revealed a high rate of vitamin D deficiency in patients with MS and in the controls group, as well Therese no clear relation to MS, Thus Therese no significant association between age at onset of multiple sclerosis and vitamin D level in Saudi population.