期刊
PUBLIC HEALTH NUTRITION
卷 10, 期 8, 页码 762-768出版社
CAMBRIDGE UNIV PRESS
DOI: 10.1017/S1368980007246786
关键词
folate; women; pregnancy; neural tube defects; Chinese
Objective: To characterise plasma and red-blood-cell (RBC) folate status among pregnant women in an area with an extremely high prevalence of neural tube defects, and to compare them with those of women from a low prevalence area. Design: A cross-sectional survey conducted in 2003. Setting: One county and one city from each of the high prevalence area and the low prevalence area in China. Subjects: Five hundred and sixty-two women in their first trimester of pregnancy in the high prevalence area and 695 pregnant women in the low prevalence area. Results: Women in the high prevalence area had less than half the plasma and RBC folate concentrations (12.2 and 440.0 nmol1(-1), respectively) of women in the low prevalence area (33.5 and 910.4 nmol1(-1), respectively). in the high prevalence area, 40% of rural women were deficient in RBC folate and 50% were deficient in plasma folate; 20% of urban women were deficient in RBC folate and 30% deficient in plasma folate. in contrast, only 4% (RBC folate) and 6% (plasma folate) of rural women, and 2% (RBC folate) and 1% (plasma folate) of urban women, were folate-deficient in the low prevalence area. Less than 10% of rural and about 26% of urban women in the Folate high prevalence area took folic acid periconceptionally, compared with 70% and 60% Women of women in the low prevalence area. Conclusions: Blood folate deficiency is highly prevalent among pregnant women in an area of China with a very high prevalence of neural tube defects.
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