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Iron supplementation of breast-fed Honduran and Swedish infants from 4 to 9 months of age.
Umeå University, Faculty of Medicine, Department of Clinical Sciences, Paediatrics.
Umeå University, Faculty of Medicine, Department of Clinical Sciences, Paediatrics.
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2001 (English)In: Journal of Pediatrics, ISSN 0022-3476, E-ISSN 1097-6833, Vol. 138, no 5, 679-687 p.Article in journal (Refereed) Published
Abstract [en]

OBJECTIVE: The objective was to study the effects of iron supplementation on hemoglobin and iron status in 2 different populations. Study design: In a randomized, placebo-controlled, masked clinical trial, we assigned term Swedish (n = 101) and Honduran (n = 131) infants to 3 groups at 4 months of age: (1) iron supplements, 1 mg/kg/d, from 4 to 9 months, (2) placebo, 4 to 6 months and iron, 6 to 9 months, and (3) placebo, 4 to 9 months. All infants were breast-fed exclusively to 6 months and partially to 9 months. RESULTS: From 4 to 6 months, the effect of iron (group 1 vs 2 + 3) was significant and similar in both populations for hemoglobin, ferritin, and zinc protoporphyrin. From 6 to 9 months, the effect (group 2 vs group 3) was significant and similar at both sites for all iron status variables except hemoglobin, for which there was a significant effect only in Honduras. In Honduras, the prevalence of iron deficiency anemia at 9 months was 29% in the placebo group and 9% in the supplemented groups. In Sweden, iron supplements caused no reduction in the already low prevalence of iron deficiency anemia at 9 months (<3%). CONCLUSION: Iron supplementation from 4 to 9 months or 6 to 9 months significantly reduced iron deficiency anemia in Honduran breast-fed infants. The unexpected hemoglobin response at 4 to 6 months in both populations suggests that regulation of hemoglobin synthesis is immature at this age.

Place, publisher, year, edition, pages
Elsevier, 2001. Vol. 138, no 5, 679-687 p.
National Category
Pediatrics
Research subject
Pediatrics
Identifiers
URN: urn:nbn:se:umu:diva-35040DOI: 10.1067/mpd.2001.112895PubMedID: 11343043OAI: oai:DiVA.org:umu-35040DiVA: diva2:328373
Available from: 2010-07-02 Created: 2010-07-02 Last updated: 2015-01-22Bibliographically approved
In thesis
1. Iron requirements of term, breast-fed infants: a study in Sweden and Honduras
Open this publication in new window or tab >>Iron requirements of term, breast-fed infants: a study in Sweden and Honduras
2001 (English)Doctoral thesis, comprehensive summary (Other academic)
Place, publisher, year, edition, pages
Umeå: Umeå Universitet, 2001. 55 p.
Series
Umeå University medical dissertations, ISSN 0346-6612 ; 759
National Category
Pediatrics
Identifiers
urn:nbn:se:umu:diva-96893 (URN)91-7305-129-2 (ISBN)
Public defence
2001-11-30, Tandläkarhögskolan Umeå, sal B, 9 tr., Umeå universitet, Umeå, 09:00
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digitalisering@umu
Note

Diss. (sammanfattning) Umeå : Umeå universitet, 2001

Available from: 2015-01-22 Created: 2014-12-05 Last updated: 2015-04-08Bibliographically approved

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Domellöf, MagnusHernell, Olle

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Citation style
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