To the Editor: Periconceptional supplementation with multivitaminsincluding folic acid or with folic acid alone can reduce boththe first occurrence and the recurrence of neural-tube defects1,2,3.We examined the effect of such supplementation on multiple births.
The Hungarian trial of periconceptional multivitamin supplementationwas stopped in 1992, and the outcomes of the pregnancies wereevaluated one year later1. The multivitamin supplement contained12 vitamins, including 0.8 mg of folic acid, four minerals,and three trace elements; a control supplement contained threetrace elements. Pregnancy was confirmed in 5502 women, and outcomecould be evaluated in 5453. The . . . [Full Text of this Article]
References
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