Observational studyPublic health nutrition2017
Duration of periconceptional folic acid supplementation in women booking for antenatal care.
Observational study in Public health nutrition, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers, 1 of them a synthesis that pooled it.
What it found
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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.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
9 citing papers in PubMed, 1 synthesis or guideline pooled it, 18 citations in OpenAlex.
- Does previous pregnancy experience improve folic acid supplementation uptake? A systematic review and meta-analysis.BMJ open · 2026Pooled it
- The effectiveness of daily supplementation with 400 or 800 µg/day folate in reaching protective red blood folate concentrations in non-pregnant women: a randomized trial.European journal of nutrition · 2018Trial
- Investigating continuation of folic acid supplementation during peri-conceptional period: a community-based cross-sectional study.Reproductive health · 2023Article
- Food Supplement Use Differs from the Recommendations in Pregnant Women: A Multinational Survey.Nutrients · 2022Article
- Vitamin Supplementation in Pre-Pregnancy and Pregnancy among Women-Effects and Influencing Factors in Romania.International journal of environmental research and public health · 2022Article
- The compliance of free folic acid supplements among pregnant women in rural areas of Northwestern China: The role of related knowledge.Frontiers in public health · 2022Article
- The determinants of maternal homocysteine in pregnancy: findings from the Ottawa and Kingston Birth Cohort.Public health nutrition · 2020Article
- Periconceptional folic acid usage and its associated factors in eastern Sudan: A cross-sectional study.Women's health (London, England)Article
- Folic acid utilization and associated factors among pregnant women who attended public health facilities of illuababor zone, Southwest Ethiopia.Women's health (London, England)Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
6 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
objectiveTo provide accurate estimates of the commencement time, duration and dosage of folic acid (FA) supplementation taken by Irish women in the periconceptional period. The study also aimed to establish the factors associated with optimal FA supplementation practices.
designCross-sectional observational study. Women's clinical and sociodemographic details were computerised. Maternal weight and height were measured before calculating BMI. Detailed FA supplementation questionnaires were completed under the supervision of a trained researcher.
settingA large university maternity hospital, Republic of Ireland, January 2014-April 2016. SUBJECTS: Women (n 856) recruited at their convenience in the first trimester.
resultsWhile almost all of the women (97 %) were taking FA at enrolment, only one in four women took FA for at least 12 weeks preconceptionally (n 208). Among the 44 % of women who were supplementing with FA preconceptionally, 44 % (162/370) reported taking FA for less than the 12 weeks required to achieve optimal red-blood-cell folate levels for prevention of neural tube defects. On multivariate analysis, only planned pregnancy and nulliparity were associated with taking FA for at least 12 weeks preconceptionally. Among women who only took FA postconceptionally, almost two-thirds commenced it after day 28 of their pregnancy when the neural tube had already closed.
conclusionsAs the timing of FA was suboptimal both before and after conception, we recommend that current national FA guidelines need to be reviewed.
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