en پژوهشي اصیل Original Research <p><strong>Background and Objective</strong><strong>:</strong> There has been a resurgence of nutritional rickets in children in many developing countries. Furthermore, Vitamin D deficiency is one of the major health problems and unexpectedly has a high prevalence in sunny countries (e.g. Middle East). In order to find out the association between vitamin D deficiencies in mothers and their neonates, we designed this study.</p> <p><strong>Methods</strong><strong>:&nbsp;</strong>In a cross-sectional study, 49 pregnant women were recruited from Ali-Asghar children&rsquo;s hospital in Tehran, in 2015. All blood samples were assayed for 25-hydroxyvitamin D3, calcium, phosphorus, parathyroid hormone, alkaline phosphatase and creatinine. Vitamin D deficiency defined as levels of 25(OH) D < 20 ng/ml for mothers and newborns.</p> <p><strong>Results</strong><strong>:&nbsp;</strong>The mean&plusmn;SD 25OHD levels of the mothers and their neonates were 26.1&plusmn;8.44 ng/mL and 17.23 &plusmn;10.36 ng/Ml, respectively. Serum 25OHD of the mothers and their neonates were significantly correlated (r = 0.446, P< 0.001).</p> <p><strong>Conclusion</strong><strong>:&nbsp;</strong>We found a significant correlation between vitamin D deficiency in mothers and their neonates. We think it is necessary to reconsider the recommendation of vitamin D supplementation for women during pregnancy.</p> Vitamin D, Neonate, Mother, Iran 14 17 http://ijca.iums.ac.ir/browse.php?a_code=A-10-1-25&slc_lang=en&sid=1 Nastaran khosravi khosravi@yahoo.com 1003194753284600154 1003194753284600154 Yes Niloofar Khosravi 1003194753284600155 1003194753284600155 No Shahin Entekhabi 1003194753284600156 1003194753284600156 No