ArticleNutrients2019
Preconception Folic Acid Supplement Use in Immigrant Women (1999-2016).
Article in Nutrients, 2019. 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.
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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
9 citing papers in PubMed, 1 synthesis or guideline pooled it.
- A comprehensive assessment of preconception health needs and interventions regarding women of childbearing age: a systematic review.Journal of preventive medicine and hygiene · 2022Pooled it
- Primary care providers' perspectives on barriers and enablers influencing preconception care provision for African migrant and refugee women: qualitative interviews.Health promotion international · 2026Article
- Trends, disparities, and socioeconomic inequalities in periconceptional folic acid supplementation in China: a nationwide survey analysis.BMC pregnancy and childbirth · 2026Observational
- Childhood cancer incidence by migrant background in Sweden (1991-2021): a nationwide cohort study.The Lancet regional health. Europe · 2026Article
- Proximity of Maternal Time of Immigration to Child's Birth Is Associated With Autism Spectrum Disorder With Early Learning Delay Among Immigrant Populations in the United States: Findings From the Study to Explore Early Development.Autism research : official journal of the International Society for Autism Research · 2025Article
- Preconception health among migrant women in England: A cross-sectional analysis of maternity services data 2018-2019.Journal of migration and health · 2024Article
- Investigating continuation of folic acid supplementation during peri-conceptional period: a community-based cross-sectional study.Reproductive health · 2023Article
- Adjusting for outcome risk factors in immigrant datasets: total or direct effects?BMC medical research methodology · 2023Article
- Article
Corrections and comments
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Authors and funding
9 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
This study examines how preconception folic acid supplement use varied in immigrant women compared with non-immigrant women. We analyzed national population-based data from Norway from 1999-2016, including 1,055,886 pregnancies, of which 202,234 and 7,965 were to 1st and 2nd generation immigrant women, respectively. Folic acid supplement use was examined in relation to generational immigrant category, maternal country of birth, and length of residence. Folic acid supplement use was lower overall in 1st and 2nd generation immigrant women (21% and 26%, respectively) compared with Norwegian-born women (29%). The lowest use among 1st generation immigrant women was seen in those from Eritrea, Ethiopia, Morocco, and Somalia (around 10%). The highest use was seen in immigrant women from the United States, the Netherlands, Denmark, and Iceland (>30%). Folic acid supplement use increased with increasing length of residence in immigrant women from most countries, but the overall prevalence was lower compared with Norwegian-born women even after 20 years of residence (adjusted odds ratio: 0.63; 95% confidence interval: 0.60-0.67). This study suggests that immigrant women from a number of countries are less likely to use preconception folic acid supplements than non-immigrant women, even many years after settlement.
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