Prevention of congenital malformations and other adverse pregnancy outcomes with 4.0 mg of folic acid: community-based randomized clinical trial in Italy and the Netherlands.

BMC Pregnancy Childbirth · 2014 · PMC4045958 · PMID 24884885

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did not reach statistical significanceno p-value reported

While the number of miscarriages increased in the group receiving supplements containing FA, the difference between groups did not reach statistical significance (RR = 1.10, 95% CI 0.97-1.26).

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