ArticlePublic health nutrition2017
Urinary iodine concentration identifies pregnant women as iodine deficient yet school-aged children as iodine sufficient in rural Niger.
Article in Public health nutrition, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT01832688 (Assessment of the Nutritional Status of Pregnant Women in Zinder, Niger and Optimization of Prenatal Care Services), which is not on this map. Cited by 16 papers, 2 of them syntheses that pooled it.
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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.
Assessment of the Nutritional Status of Pregnant Women in Zinder, Niger and Optimization of Prenatal Care Services
Who cites it
16 citing papers in PubMed, 2 syntheses or guidelines pooled it, 21 citations in OpenAlex.
- The prevalence of insufficient iodine intake in pregnancy in Africa: a systematic review and meta-analysis.Systematic reviews · 2022Pooled it
- Prevalence of insufficient iodine intake in pregnancy worldwide: a systematic review and meta-analysis.European journal of clinical nutrition · 2022Pooled it
- Trial
- Nationwide survey on iodine nutritional status and thyroid function in Japanese adults.Endocrine journal · 2026Observational
- Global, regional, and national burden of iodine deficiency for women of reproductive age, 1990-2021: a systematic analysis based on the Global Burden of Disease Study 2021.Frontiers in nutrition · 2025Article
- Pregnant women at risk for iodine deficiency but adequate iodine intake in school-aged children of Zhejiang Province, China.Environmental geochemistry and health · 2024Article
- Serum Iodine as a Potential Individual Iodine Status Biomarker: A Cohort Study of Mild Iodine Deficient Pregnant Women in China.Nutrients · 2023Article
- Chip-Based Spectrofluorimetric Determination of Iodine in a Multi-Syringe Flow Platform with and without In-Line Digestion-Application to Salt, Pharmaceuticals, and Algae Samples.Molecules (Basel, Switzerland) · 2022Article
- Association of Salt Iodization and Urine Iodine Concentration in Schoolchildren from Public Schools in Northeast of Brazil.Biological trace element research · 2021Article
- Assessment of Iodine and Selenium Nutritional Status in Women of Reproductive Age in Latvia.Medicina (Kaunas, Lithuania) · 2021Article
- Current iodine nutrition status in Poland (2017): is the Polish model of obligatory iodine prophylaxis able to eliminate iodine deficiency in the population?Public health nutrition · 2020Article
- The mixed effects of a package of multilevel interventions on the health and care of pregnant women in Zinder, Niger.BMJ global health · 2019Article
- Iodine Deficiency in Zhejiang Pregnant Women in the Context of Universal Salt Iodization Programme.Scientific reports · 2018Article
- Using formative research to promote antenatal care attendance and iron folic acid supplementation in Zinder, Niger.Maternal & child nutrition · 2018Article
- Micronutrient Status among Pregnant Women in Zinder, Niger and Risk Factors Associated with Deficiency.Nutrients · 2017Article
- Article
Corrections and comments
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Authors and funding
7 authors at 4 institutions in 3 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
objectiveTo assess iodine status among pregnant women in rural Zinder, Niger and to compare their status with the iodine status of school-aged children from the same households.
designSeventy-three villages in the catchment area of sixteen health centres were randomly selected to participate in the cross-sectional survey.
settingSalt iodization is mandatory in Niger, requiring 20-60 ppm iodine at the retail level. SUBJECTS: A spot urine sample was collected from randomly selected pregnant women (n 662) and one school-aged child from the same household (n 373). Urinary iodine concentration (UIC) was assessed as an indicator of iodine status in both groups. Dried blood spots (DBS) were collected from venous blood samples of pregnant women and thyroglobulin (Tg), thyroid-stimulating hormone and total thyroxine were measured. Iodine content of household salt samples (n 108) was assessed by titration.
resultsMedian iodine content of salt samples was 5·5 ppm (range 0-41 ppm), 98 % had an iodine content 40 µg/l.
conclusionsIn this region of Niger, most salt is inadequately iodized. UIC in pregnant women indicated iodine deficiency, whereas UIC of school-aged children indicated marginally adequate iodine status. Thus, estimating population iodine status based solely on monitoring of UIC among school-aged children may underestimate the risk of iodine deficiency in pregnant women.
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Registered trials
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