ArticleMaternal & child nutrition2019
Folate of pregnant women after a nationwide folic acid supplementation in China.
Article in Maternal & child nutrition, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers, 1 of them a synthesis that pooled it.
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
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Who cites it
10 citing papers in PubMed, 1 synthesis or guideline pooled it, 17 citations in OpenAlex.
- Evaluation of the association between maternal folic acid supplementation and the risk of congenital heart disease: a systematic review and meta-analysis.Nutrition journal · 2022Pooled it
- Correlation between folic acid and hemoglobin in pregnant women: cross-sectional study from 2017 to 2019.Revista brasileira de enfermagem · 2026Article
- Distribution of Methylene Tetrahydrofolate Reductase Gene Polymorphisms in Women of Childbearing Age in Tai'an.International journal of genomics · 2025Article
- Methylenetetrahydrofolate reductase (MTHFR) polymorphisms in andrology-a narrative review.Translational andrology and urology · 2024Review
- Periconceptional Supplementation with Folic Acid or Multiple Micronutrients Containing Folic Acid and the Risk for Hypertensive Disorders in Pregnancy.Medical principles and practice : international journal of the Kuwait University, Health Science Centre · 2024Article
- Article
- Orofacial Clefts in High Prevalence Area of Birth Defects - Five Counties, Shanxi Province, China, 2000-2020.China CDC weekly · 2021Article
- Periconceptional folic acid supplementation and risk of parent-reported asthma in children at 4-6 years of age.ERJ open research · 2020Article
- Folate of pregnant women after a nationwide folic acid supplementation in China.Maternal & child nutrition · 2019Article
- Medication Use During Pregnancy in Mainland China: A Cross-Sectional Analysis of a National Health Insurance Database.Clinical epidemiology · 2019Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
8 authors at 3 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Folate insufficiency during the periconceptional period increases the risk of neural tube defects (NTDs) in offspring, and folic acid supplementation substantially reduces the risk. Widespread large-scale folic acid supplementation (0.4-mg folic acid tablet) has been adopted as a main strategy to prevent NTDs in China since 2009. We examined folate concentrations in plasma and red blood cells (RBCs) of pregnant women and the factors associated with blood folate concentrations in a population with a high prevalence of NTDs in northern China. A cross-sectional survey was conducted in 2014, and 1,107 pregnant women were recruited from 11 county or city maternal and child health centres across Shanxi province. Microbiological assays were used to determine folate concentrations. Factors associated with blood folate insufficiency were identified. The median (25th and 75th percentiles) folate concentrations were 28.4 (17.6, 45.2) nmol L
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Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.