Evidence map›Paper›PMID 35754987›Full record

ArticleJournal of nutritional science2022

Prevalence of postpartum anaemia and iron deficiency by serum ferritin, soluble transferrin receptor and total body iron, and associations with ethnicity and clinical factors: a Norwegian population-based cohort study.

Marthe-Lise Næss-Andresen, Anne Karen Jenum, Jens Petter Berg, Ragnhild Sørum Falk, Line Sletner

Open access · goldAbstract read
In one paragraph

Article in Journal of nutritional science, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
7citing papers in PubMed, 1 pooled it
1.3field-weighted citation impact, top 19% 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

7 citing papers in PubMed, 1 synthesis or guideline pooled it, 8 citations in OpenAlex.

  1. Pooled it
  2. Trial
  3. Article
  4. Article
  5. Article
  6. Review
  7. Article
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

5 authors at 2 institutions in 1 country.

Marthe-Lise Næss-AndresenDepartment of General Practice, Institute of Health and Society, University of Oslo, Oslo, Norway.ORCID 0000-0001-8149-6383
Anne Karen JenumGeneral Practice Research Unit, Department of General Practice, Institute of Health and Society, University of Oslo, Oslo, Norway.
Jens Petter BergDepartment of Medical Biochemistry, Institute of Clinical Medicine, University of Oslo, Oslo, Norway.
Ragnhild Sørum FalkOslo Centre for Biostatistics and Epidemiology, Oslo University Hospital, Oslo, Norway.
Line SletnerDepartment of Paediatric and Adolescents Medicine, Akershus University Hospital, Lørenskog, Norway.
University of Oslo · NOOslo University Hospital · NO

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Worldwide, there are limited data on the prevalence of postpartum anaemia and iron status. The aims of the present study were to assess the prevalence of anaemia and iron deficiency (ID) by three iron indicators 14 weeks postpartum, their relations to haemoglobin (Hb) and associations with ethnicity and clinical factors in a multi-ethnic population. We conducted a population-based cohort study of 573 women followed from early pregnancy. The prevalence of postpartum anaemia (Hb <12·0 g/dl) was 25 %. ID prevalence varied from 39 % by serum ferritin (SF <15 μg/l), to 19 % by soluble transferrin receptor (sTfR >4·4 mg/l) and 22 % by total body iron (TBI < 0 mg/kg). The mean Hb concentration was 12·8 g/dl in women with no ID, 12·6 g/dl in those with ID by SF only and 11·6 g/dl in those with ID by SF, sTfR and TBI. ID by sTfR and TBI defined by the current threshold values probably identified a more severe iron-deficient population compared with ID assessed by SF. Compared with Western Europeans, the prevalence of anaemia was at least the double in ethnic minorities (26-40 %

Indexed as

AnemiaAnemia, Iron-DeficiencyIron DeficienciesCohort StudiesCross-Sectional StudiesEthnicityFemaleFerritinsHemoglobinsHumansIronNorwayPostpartum PeriodPregnancyPrevalenceReceptors, TransferrinFerritinsHemoglobinsIronReceptors, TransferrinAnaemiaCohortEthnic minoritiesIron deficiencyPostpartum iron status

Identifiers

PMID35754987
PMCPMC9201879
OpenAlexW4285214020

What OpenQuestion holds

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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.