TY - JOUR
T1 - Iron supplementation of iron-replete Indonesian infants is associated with reduced weight-for-age
AU - Lind, Torbjörn
AU - Seswandhana, Rosadi
AU - Persson, Lars Åke
AU - Lönnerdal, Bo
PY - 2008/6
Y1 - 2008/6
N2 - Background: General iron supplementation to prevent iron deficiency in infants who are iron sufficient when starting supplementation may adversely affect their health. Objective: A secondary analysis to explore the effect of iron supplementation on iron-replete (IR; Hb ≥113 g/L and S-ferritin ≥33 μg/L) or non-iron-replete 6-month-old Indonesian infants participating in a large, randomized trial on iron and zinc supplementation. Results: Among the iron-supplemented IR (Fe-IR, n = 80) infants S-ferritin was, compared to non-iron-supplemented (NS) IR infants (NS-IR, n = 74), significantly higher (47.5 vs. 20.7 μg/L, p = 0.04), and S-zinc significantly lower (9.7 vs. 10.5 μmol/L, p = 0.04). Haemoglobin concentration (Hb) did not differ between the Fe-IR and NS-IR groups. Change in weight-for-age z-score (WAZ) from 6 to 12 months and mean WAZ at 12 months was lower in the Fe-IR group compared to the NS-IR group (-1.45 vs. -1.03, p < 0.001 and -1.97 vs. -1.60, p < 0.001, respectively). There was no difference in morbidity between groups. Iron supplementation of non-iron-replete infants increased Hb and S-ferritin, but did not affect S-zinc or anthropometrical indices. Conclusion: In our study, iron supplementation of IR infants affected WAZ adversely, whereas iron supplementation to non-iron-replete infants did not affect growth. These results support a cautious approach to iron supplementation of IR infants.
AB - Background: General iron supplementation to prevent iron deficiency in infants who are iron sufficient when starting supplementation may adversely affect their health. Objective: A secondary analysis to explore the effect of iron supplementation on iron-replete (IR; Hb ≥113 g/L and S-ferritin ≥33 μg/L) or non-iron-replete 6-month-old Indonesian infants participating in a large, randomized trial on iron and zinc supplementation. Results: Among the iron-supplemented IR (Fe-IR, n = 80) infants S-ferritin was, compared to non-iron-supplemented (NS) IR infants (NS-IR, n = 74), significantly higher (47.5 vs. 20.7 μg/L, p = 0.04), and S-zinc significantly lower (9.7 vs. 10.5 μmol/L, p = 0.04). Haemoglobin concentration (Hb) did not differ between the Fe-IR and NS-IR groups. Change in weight-for-age z-score (WAZ) from 6 to 12 months and mean WAZ at 12 months was lower in the Fe-IR group compared to the NS-IR group (-1.45 vs. -1.03, p < 0.001 and -1.97 vs. -1.60, p < 0.001, respectively). There was no difference in morbidity between groups. Iron supplementation of non-iron-replete infants increased Hb and S-ferritin, but did not affect S-zinc or anthropometrical indices. Conclusion: In our study, iron supplementation of IR infants affected WAZ adversely, whereas iron supplementation to non-iron-replete infants did not affect growth. These results support a cautious approach to iron supplementation of IR infants.
KW - Growth
KW - Infant
KW - Iron replete
KW - Iron supplementation
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U2 - 10.1111/j.1651-2227.2008.00773.x
DO - 10.1111/j.1651-2227.2008.00773.x
M3 - Article
C2 - 18422809
AN - SCOPUS:43249112702
VL - 97
SP - 770
EP - 775
JO - Acta Paediatrica, International Journal of Paediatrics
JF - Acta Paediatrica, International Journal of Paediatrics
SN - 0803-5253
IS - 6
ER -