Evidence map›Paper›PMID 28640217›Full record

ArticleNutrients2017

Suboptimal Iodine Concentration in Breastmilk and Inadequate Iodine Intake among Lactating Women in Norway.

Sigrun Henjum, Anne Marie Lilleengen, Inger Aakre, Anna Dudareva, Elin Lovise Folven Gjengedal, Helle Margrete Meltzer, Anne Lise Brantsæter

Open access · goldAbstract read
In one paragraph

Article in Nutrients, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 40 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
40citing papers in PubMed, 3 pooled it
4.8field-weighted citation impact, top 4% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

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.

2 · The registry

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.

3 · Its place in the literature

Who cites it

40 citing papers in PubMed, 3 syntheses or guidelines pooled it, 59 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. Pooled it
  4. Trial
  5. Article
  6. Article
  7. Nutrient Intake Among Lactating Women With Overweight and Obesity in Norway: A Comparison With the Nordic Nutrition Recommendations 2023.Journal of human nutrition and dietetics : the official journal of the British Dietetic Association · 2025
    Article
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  10. Review
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  12. Article
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  15. Adequate vitamin BThe British journal of nutrition · 2023
    Article
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  18. Article
  19. Review
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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

7 authors at 3 institutions in 1 country.

Sigrun HenjumDepartment of Nursing and Health Promotion, Faculty of Health Sciences, Oslo and Akershus University, College of Applied Sciences, Oslo 0310, Norway. sigrun.henjum@hioa.no.
Anne Marie LilleengenDepartment of Nursing and Health Promotion, Faculty of Health Sciences, Oslo and Akershus University, College of Applied Sciences, Oslo 0310, Norway. anne.marie.lilleengen@hioa.no.
Inger AakreDepartment of Nursing and Health Promotion, Faculty of Health Sciences, Oslo and Akershus University, College of Applied Sciences, Oslo 0310, Norway. inger.aakre@hioa.no.
Anna DudarevaDepartment of Nursing and Health Promotion, Faculty of Health Sciences, Oslo and Akershus University, College of Applied Sciences, Oslo 0310, Norway. annamoguciha@mail.com.
Elin Lovise Folven GjengedalFaculty of Environmental Sciences and Natural Resource Management, Norwegian University of Life Sciences, Aas 1433, Norway. elin.gjengedal@nmbu.no.
Helle Margrete MeltzerDivision of Infection Control and Environmental Health, Norwegian Institute of Public Health, Oslo 0403, Norway. hellemargrete.meltzer@fhi.no.
Anne Lise BrantsæterDivision of Infection Control and Environmental Health, Norwegian Institute of Public Health, Oslo 0403, Norway. annelise.brantsaeter@fhi.no.
OsloMet – Oslo Metropolitan University · NONorwegian Institute of Public Health · NONorwegian University of Life Sciences · NO

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Breastfed infants depend on sufficient maternal iodine intake for optimal growth and neurological development. Despite this, few studies have assessed iodine concentrations in human milk and there is currently no published data on iodine status among lactating women in Norway. The aim of this study was to assess iodine concentrations in breast milk (BMIC) in lactating women and estimate iodine intake. Five Mother and Child Health Centres in Oslo were randomly selected during 2016, and 175 lactating women between 2nd and 28th weeks postpartum participated. Each of the women provided four breastmilk samples which were pooled and analysed for iodine concentrations. Participants also provided information on iodine intake from food and supplements covering the last 24 h and the habitual iodine intake (food frequency questionnaire). The median (p25, p75 percentiles) BMIC was 68 (45, 98) µg/L and 76% had BMIC <100 µg/L. Only 19% had taken an iodine-containing supplement during the last 24 h. The median 24 h iodine intake from food (p25, p75) was 121 (82, 162) µg/day and the total intake (food and supplements) was 134 (95, 222) µg/day. The majority of lactating women had suboptimal BMIC and inadequate intake of iodine from food and supplements.

Indexed as

AdultBreast FeedingDietary SupplementsFemaleHumansInfantInfant, NewbornIodineLactationMilk, HumanMothersNorwayIodinebreastmilk iodine concentrationiodine intakeiodine statuslactating womenNorwayurinary iodine concentration

Identifiers

PMID28640217
PMCPMC5537763
OpenAlexW2711081019

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

Registered trials

None linked

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.