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Dietary iron intake and iron status in adolescents
University West, Department of Health Sciences, Section for nursing - graduate level.ORCID iD: 0000-0001-7328-2190
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1996 (English)In: Acta Paediatrica, ISSN 0803-5253, E-ISSN 1651-2227, Vol. 85, no 9, p. 1033-8Article in journal (Refereed) Published
Abstract [en]

The aim of this study was to evaluate the dietary iron intake of 15-year-old adolescents from two different regions of Sweden, in relation to their iron status. The study comprised 185 boys and 209 girls, randomly selected from the official population register. The iron intake was calculated from a 7-day record, and varied between 7 and 35 and 6 and 27 mg per day for boys and girls, respectively. The daily median intakes in boys and girls were 18.7 and 14.2 mg, respectively. S-ferritin, s-iron, and s-transferrin saturation, measured in all the subjects, did not differ significantly between the two regions. However, the mean serum ferritin concentration was significantly higher in the boys (36.4 micrograms l-1) than in the girls (29.4 micrograms l-1) (p < 0.001). Low s-ferritin levels, defined as s-ferritin < 12 micrograms l-1 were found in seven boys (3.7%) and in 29 girls (13.9%). None of the adolescents had iron deficiency anaemia, defined as Hb < 110 gl-1 in combination with s-ferritin < 12 micrograms l-1. Regression and correlation analyses did not show any significant correlation between dietary iron intake and s-ferritin, or between s-ferritin and haemoglobin (Hb), MCH and MCHC. A significant correlation was found, however, between s-ferritin and transferrin saturation (p < 0.005) in both sexes. When the adolescents who still had s-ferritin < 12 micrograms l-1 at a second blood examination were given a 6 weeks trial with oral iron therapy, all of them showed an increase both in s-ferritin and in blood Hb. The 95% confidence intervals of s-ferritin for 15-year-old Swedish boys and girls were defined as 11-90 and 7-85 micrograms l-1, respectively.

Place, publisher, year, edition, pages
1996. Vol. 85, no 9, p. 1033-8
National Category
Nursing
Research subject
NURSING AND PUBLIC HEALTH SCIENCE, Nursing science
Identifiers
URN: urn:nbn:se:hv:diva-13343PubMedID: 8888913OAI: oai:DiVA.org:hv-13343DiVA, id: diva2:1273777
Note

Professor Gösta Samuelson samlade trycksaker;176

Available from: 2018-12-21 Created: 2018-12-21 Last updated: 2019-04-12Bibliographically approved

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