Improvements in the Status of Folate and ... - Semantic Scholar
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Improvements in the Status of Folate and ... - Semantic Scholar
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RESEARCH
Improvements in the Status of Folate and Cobalamin in Pregnant Newfoundland Women Are Consistent with Observed Reductions in the Incidence of Neural Tube Defects James D. House, PhD1,2 Sandra B. March, MSc3 Sam Ratnam, PhD3
Marilyn Crowley, MD4 James K. Friel, PhD2
ABSTRACT Background: Historically, the province of Newfoundland and Labrador had one of the highest rates of neural tube defects (NTDs) in North America (1976-1991: 3.2/1000 births), which could be partially explained by the sub-optimal status of folate and cobalamin in this population. In order to gain evidence of the impact of folate fortification programs, as well as prenatal education programs, a cross-sectional study was conducted to obtain data on the folate and cobalamin status of pregnant Newfoundland women in the post-folate fortification era. Additionally, the rates of NTDs were determined. Methods: Blood samples were collected during the first prenatal clinic (at approximately 16 weeks gestation) from 365 pregnant women in Newfoundland in 2002. Samples were analyzed for serum folate, cobalamin and homocysteine. In addition, rates of neural tube defects were calculated from data collected from the Provincial Medical Genetics Program, Newfoundland. Data were compared to historical data from a similar population of pregnant women in Newfoundland. Results: The status of both folate and cobalamin has significantly improved (p
