Evidence map›Paper›PMID 24292818›Full record

Observational studyEuropean journal of nutrition2014

Iron deficiency and anemia in iron-fortified formula and human milk-fed preterm infants until 6 months post-term.

Monique van de Lagemaat, Eline M Amesz, Anne Schaafsma, Harrie N Lafeber

Abstract readObservational Study
PubMed Publisher
In one paragraph

Observational study in European journal of nutrition, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
12citing papers in PubMed, 1 pooled it
2.1field-weighted citation impact, top 15% 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

12 citing papers in PubMed, 1 synthesis or guideline pooled it, 22 citations in OpenAlex.

  1. Pooled it
  2. Review
  3. Observational
  4. Article
  5. Review
  6. A Retrospective Case-Control Study of the Determinants of Iron Deficiency Anemia in Infants in an Urban Community in Shanghai, China Between 2010-2015.Medical science monitor : international medical journal of experimental and clinical research · 2020
    Article
  7. [Research advances in the relationship between iron deficiency and neurodevelopment in preterm infants].Zhongguo dang dai er ke za zhi = Chinese journal of contemporary pediatrics · 2018
    Article
  8. Article
  9. Article
  10. Review
  11. Article
  12. Review
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

4 authors at 2 institutions in 1 country.

Monique van de LagemaatDepartment of Pediatrics, VU University Medical Center, PO Box 7057, 1007 MB, Amsterdam, The Netherlands, m.vandelagemaat@vumc.nl.
Eline M Amesz
Anne Schaafsma
Harrie N Lafeber
Amsterdam UMC Location VUmc · NLFrieslandCampina (Netherlands) · NL

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeAn iron intake of >2 mg/kg/d is recommended for preterm infants. We hypothesized that human milk (HM)-fed preterm infants require iron supplementation after discharge, whereas iron-fortified formulae (IFF; 0.8-1.0 mg iron/100 ml) may provide sufficient dietary iron until 6 months post-term.

methodsAt term age, 3 and 6 months post-term, ferritin (μg/l) was measured in 92 IFF-fed infants (gestational age (median (interquartile range)) 30.7 (1.4) weeks, birth weight 1,375 (338) gram) and 46 HM-fed infants (gestational age 30.0 (1.7) weeks, birth weight 1,400 (571) gram). Iron intake (mg/kg/d) between term age and 6 months post-term was calculated.

resultsIron was supplemented to 71.7% of HM-fed and 83.7% of IFF-fed infants between term age and 3 months post-term and to 13% of HM-fed and 0% of IFF-fed infants between 3 and 6 months post-term. IFF-fed infants had an iron intake from supplements and formula of 2.66 (1.22) mg/kg/d between term age and 3 months post-term and 1.19 (0.32) mg/kg/d between 3 and 6 months post-term. At 3 and 6 months post-term, the incidence of ferritin <12 μg/l was higher in HM-fed compared to IFF-fed infants (23.8 vs. 7.8% and 26.3 vs. 9.5%, P < 0.02).

conclusionThis observational study demonstrates that ferritin <12 μg/l is more prevalent in HM-fed infants until 6 months post-term. This may be due to early cessation of additional iron supplementation. We speculate that additional iron supplementation is not necessary in preterm infants fed IFF (0.8-1.0 mg iron/100 ml), as they achieve ferritin ≥12 μg/l without additional iron supplements between 3 and 6 months post-term.

Indexed as

Food, FortifiedAnemia, Iron-DeficiencyBirth WeightBody CompositionBody HeightBody WeightDietary SupplementsFemaleFerritinsHumansIncidenceInfantInfant FormulaInfant, PrematureIron, DietaryMaleFerritinsIron, Dietary

Identifiers

PMID24292818
OpenAlexW2015953689

What OpenQuestion holds

Textmetadata
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.