SynthesisEuropean journal of clinical nutrition2022
Prevalence of insufficient iodine intake in pregnancy worldwide: a systematic review and meta-analysis.
Synthesis in European journal of clinical nutrition, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 21 papers, 2 of them syntheses 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.
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Who cites it
21 citing papers in PubMed, 2 syntheses or guidelines pooled it, 29 citations in OpenAlex.
- Dairy Intake and Iodine Status in Pregnant and Lactating Women: A Systematic Review and Meta-Analysis.Nutrients · 2025Pooled it
- Global prevalence of congenital hypothyroidism among neonates from 1969 to 2020: a systematic review and meta-analysis.European journal of pediatrics · 2023Pooled it
- Association between serum iodine and thyroid function in Malagasy adults: a cross-sectional study in a tertiary-level hospital in Antananarivo, Madagascar.The Libyan journal of medicine · 2026Article
- Temporal impact of hypothyroidism on porcine fetal growth and skeletal development.Physiological reports · 2026Article
- Enhancing iodine health awareness among adolescents: a study protocol for a multi-country intervention study in educational settings across the UK, Slovenia, Cyprus, Bangladesh, Germany and Pakistan.BMC public health · 2026Article
- Article
- Cross-sectional study of maternal iodine nutrition and salt iodization in Kyrgyzstan: urban-rural and socioeconomic factors.International health · 2026Article
- Iodine Supplementation Before, During and After Pregnancy.Geburtshilfe und Frauenheilkunde · 2026Article
- Should iodine supplementation be universally recommended for pregnant women in Brazil? A position statement from the Thyroid Department of the Brazilian Society of Endocrinology and Metabolism (SBEM).Archives of endocrinology and metabolism · 2025Review
- Effect of Iodine Nutrition During Pregnancy and Lactation on Child Cognitive Outcomes: A Review.Nutrients · 2025Review
- Newborn screening for congenital hypothyroidism: worldwide coverage 50 years after its start.European thyroid journal · 2025Review
- Micro-nutrient sufficiency in mothers and babies: management of deficiencies while avoiding overload during pregnancy.Frontiers in nutrition · 2025Review
- Inadequate iodine status among women of childbearing age in Northern Norway: a cross-sectional study.Food & nutrition research · 2025Article
- Global, Regional, and National Burden of Iodine Deficiency in Reproductive Women From 1990 to 2019, and Projections to 2035: A Systematic Analysis for the Global Burden of Disease Study in 2019.International journal of women's health · 2025Article
- Iodine status and knowledge among pregnant and lactating women in Large City in Northern China after nearly 30 years of the universal salt iodization.European journal of nutrition · 2024Article
- Maternal Thyroid Dysfunction During Pregnancy as an Etiologic Factor in Autism Spectrum Disorder: Challenges and Opportunities for Research.Thyroid : official journal of the American Thyroid Association · 2024Review
- Maternal Urinary Iodine Concentration during Pregnancy and Its Impact on Child Growth and Neurodevelopment: An 11-Year Follow-Up Study.Nutrients · 2023Article
- Midwives and public health nurses' knowledge and clinical practice in securing sufficient iodine status in relation to pregnancy: A cross-sectional study.Nursing open · 2023Article
- A Scoping Review of Iodine and Fluoride in Pregnancy in Relation to Maternal Thyroid Function and Offspring Neurodevelopment.Advances in nutrition (Bethesda, Md.) · 2023Article
- Can Mild-to-Moderate Iodine Deficiency during Pregnancy Alter Thyroid Function? Lessons from a Mother-Newborn Cohort.Nutrients · 2022Article
Corrections and comments
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Authors and funding
6 authors at 3 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
BACKGROUND/
objectivesIodine deficiency in pregnant women is related to impaired foetal growth and development. The objective of this study was to estimate the prevalence of insufficient iodine intake in pregnant women from different regions of the world. SUBJECTS/
methodsUsing the Preferred Reporting Items for Systematic Reviews and Meta-Analysis (PRISMA) guidelines, five electronic databases and Google Scholar grey literature were searched until 10 April 2021. Two reviewers independently conducted article selection, data extraction, and assessment of the risk of bias. Meta-analyses with random effects, subgroup analyses, and meta-regressions were performed.
resultsIn total, 4639 observational articles were found, with 61 eligible for inclusion. The population consisted of 163,021 pregnant women adults and adolescents, and the overall prevalence of insufficient iodine intake was 53% (95% confidence interval [CI]: 47-60; I
conclusionDespite the progress in iodine fortification policies and periodic monitoring of the iodine nutritional status of the population worldwide, salt iodination alone may not be sufficient to provide adequate iodine status to pregnant women. Thus, other actions may be necessary to improve the nutritional clinical care of pregnant group.
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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.