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Micronutrient intakes affect early growth in extremely preterm infants : preliminary results from a Swedish cohort

Stoltz Sjöström, E., Szymlek-Gay, E. A., Öhlund, I., Ahlsson, F., Norman, M., Engström, E., Hellström, A., Fellman, V., Olhager, E. and Domellöf, M. 2011, Micronutrient intakes affect early growth in extremely preterm infants : preliminary results from a Swedish cohort, Pediatric research, vol. 70, pp. 70-70, doi: 10.1038/pr.2011.295.

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Title Micronutrient intakes affect early growth in extremely preterm infants : preliminary results from a Swedish cohort
Author(s) Stoltz Sjöström, E.
Szymlek-Gay, E. A.ORCID iD for Szymlek-Gay, E. A. orcid.org/0000-0002-6533-7945
Öhlund, I.
Ahlsson, F.
Norman, M.
Engström, E.
Hellström, A.
Fellman, V.
Olhager, E.
Domellöf, M.
Journal name Pediatric research
Volume number 70
Start page 70
End page 70
Total pages 1
Publisher Nature Publishing Group
Place of publication New York, N. Y.
Publication date 2011
ISSN 0031-3998
1530-0447
Keyword(s) extremely preterm infants
postnatal growth failure
micronutrient intake
growth
macronutrient intake
Summary Background: Extremely preterm infants generally experience postnatal growth failure. It is still unclear if this is related to micronutrient intakes.

Aim: To investigate the effect of micronutrient intakes (calcium, zinc, iron, phosphorus, sodium, potassium, chloride, magnesium, vitamin A, vitamin D, vitamin E, folate and vitamin B12) on growth during the first 28 days of life in extremely preterm infants.

Method: From the EXPRESS cohort (all infants born < 27 gestational weeks between 2004-2007 in Sweden), those who survived the first 28 days were included (n=524). Daily parenteral and enteral intakes and anthropometric measurements were retrieved from hospital records.

Results: Preliminary analyses of data from 333 infants (mean±SD gestational age 25.2±1.0 weeks, birth weight 753±168g) showed that macronutrient intakes were lower than recommended (energy 98±13kcal/kg/day, protein 2.9±0.4g/kg/day). Infants showed postnatal growth failure: mean standard deviation scores decreased by 2.2 for weight, 2.3 for length and 1.4 for head circumference. Intakes of micronutrients were generally low, e.g. adjusted enteral intakes of calcium were 66.6±21.4 mg/kg/day. The exception was iron, with a high parenteral intake of 2.7±1.6 mg/kg/day, mainly from blood transfusions. Adjusting for protein intake and other confounders, calcium intakes were positively correlated with head growth (r=+0.19, p=0.006) and iron intakes were negatively correlated with length gain (r=-0.18, p=0.009).

Conclusions: Low calcium intakes and high iron intakes were associated with poor growth with regard to head circumference and length, respectively. If these results are confirmed, optimized micronutrient intakes may improve early growth in extremely preterm infants.
Notes Reproduced with the kind permission of the copyright owner.
Language eng
DOI 10.1038/pr.2011.295
Field of Research 119999 Medical and Health Sciences not elsewhere classified
Socio Economic Objective 970111 Expanding Knowledge in the Medical and Health Sciences
HERDC Research category C2.1 Other contribution to refereed journal
Copyright notice ©2011, Nature Publishing Group
Free to Read? Yes
Persistent URL http://hdl.handle.net/10536/DRO/DU:30045249

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Every reasonable effort has been made to ensure that permission has been obtained for items included in DRO. If you believe that your rights have been infringed by this repository, please contact drosupport@deakin.edu.au.