Data were available for 97 women in the first trimester, 78 women in the second trimester and 61 women in the third trimester. Results: Out of 97 patients, 8 patients dropped out from the study for several reasons, and 19 patients had pregnancy loss. Umbilical cords vitamin D levels were determined at birth.
The same tests were repeated at each trimester. Other multivitamins supplementations were allowed during pregnancy. Weekly oral vitamin D (50,000 IU) were prescribed after an initial testing for serum level of 25-hydroxyvitamin D, parathyroid hormone, calcium, phosphorus, total protein and albumin. Patients and Methods: Ninety seven pregnant women were recruited in their first trimester between December 2007 and March 2010. Setting and design: Prospective study at Hamad Medical Corporation outpatient unit and delivery room. We conducted this study to determine the prevalence of vitamin D deficiency among pregnant women and to evaluate the effectiveness and level of weekly oral 50,000 IU of vitamin D supplementation for the mother and the newborn. The current guidelines for vitamin D intake during pregnancy of 200–400 IU has little scientific support and has been recently challenged. Deficiencies have been prevalent even in studies where over 90% of the women took prenatal vitamins.
Background and objectives: Vitamin D deficiency is very common in pregnant women.
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