Evidence map›Paper›PMID 32162412›Full record

ArticleMaternal & child nutrition2020

Iodine status of breastfed infants and their mothers' breast milk iodine concentration.

Erna Petersen, Birna Thorisdottir, Inga Thorsdottir, Geir Gunnlaugsson, Petra Arohonka, Iris Erlund, Ingibjörg Gunnarsdottir

Open access · goldAbstract read
In one paragraph

Article in Maternal & child nutrition, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
9citing papers in PubMed, 2 pooled it
1.1field-weighted citation impact, top 21% 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

9 citing papers in PubMed, 2 syntheses or guidelines pooled it, 10 citations in OpenAlex.

  1. Pooled it
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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 2 countries.

Erna PetersenDepartment of Clinical Nutrition, Landspitali University Hospital, Reykjavik, Iceland.
Birna ThorisdottirUnit for Nutrition Research, Faculty of Food Science and Nutrition, Landspitali University Hospital, University of Iceland, Reykjavik, Iceland.ORCID 0000-0001-7320-0116
Inga ThorsdottirSchool of Health Sciences, University of Iceland, Reykjavik, Iceland.ORCID 0000-0002-2946-287X
Geir GunnlaugssonFaculty of Sociology, Anthropology and Folkloristics, School of Social Sciences, University of Iceland, Reykjavik, Iceland.ORCID 0000-0002-6674-2862
Petra ArohonkaForensic Toxicology Unit, Biochemistry Laboratory, Finnish Institute for Health and Welfare (THL), Helsinki, Finland.
Iris ErlundForensic Toxicology Unit, Biochemistry Laboratory, Finnish Institute for Health and Welfare (THL), Helsinki, Finland.ORCID 0000-0002-0083-1256
Ingibjörg GunnarsdottirDepartment of Clinical Nutrition, Landspitali University Hospital, Reykjavik, Iceland.ORCID 0000-0001-9447-8627
Reykjavík University · ISFinnish Institute for Health and Welfare · FIUniversity of Iceland · IS

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Iodine is an essential nutrient for growth and development during infancy. Data on iodine status of exclusively (EBF) and partially breastfed (PBF) infants as well as breast milk iodine concentration (BMIC) are scarce. We aimed to assess (a) infant iodine nutrition at the age of 5.5 months by measuring urinary iodine concentration (UIC) in EBF (n = 32) and PBF (n = 28) infants and (b) mothers' breast milk iodine concentration (n = 57). Sixty mother-infant pairs from three primary health care centres in Reykjavik and vicinities provided urine and breast milk samples for iodine analysis and information on mothers' habitual diet. The mother-infant pairs were participants of the IceAge2 study, which focuses on factors contributing to infant growth and development, including body composition and breast-milk energy content. The median (25th-75th percentiles) UIC was 152 (79-239) μg/L, with no significant difference between EBF and PBF infants. The estimated median iodine intake ranged from 52 to 86 μg/day, based on urinary data (assuming an average urine volume of 300-500 ml/day and UIC from the present study). The median (25th-75th percentiles) BMIC was 84 (48-114) μg/L. It is difficult to conclude whether iodine status is adequate in the present study, as no ranges for median UIC reflecting optimal iodine nutrition exist for infants. However, the results add important information to the relatively sparse literature on UIC, BMIC, and iodine intake of breastfed infants.

Indexed as

Nutritional StatusAdultBreast FeedingCohort StudiesFemaleHumansIcelandInfantInfant Nutritional Physiological PhenomenaIodineMilk, HumanProspective StudiesIodinediethumaninfantiodinelactationmilk

Identifiers

PMID32162412
PMCPMC7296790
OpenAlexW3010781202

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.