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The effects of iron deficiency on infants' developmental test performance

M Akman1, D Cebeci, V Okur

  • 1Department of Family Medicine, Marmara University, School of Medicine, Istanbul, Turkey. makman4@hotmail.com

Acta Paediatrica (Oslo, Norway : 1992)
|October 27, 2004
PubMed

Insights

Iron deficiency in infants is linked to lower developmental scores. Iron therapy can improve these scores, highlighting the importance of early detection and treatment for infant development.

Area of Science:

  • Pediatrics
  • Nutritional Science
  • Developmental Psychology

Background:

  • Iron deficiency is a prevalent nutritional deficiency in infants worldwide.
  • Impaired cognitive and motor development are potential consequences of iron deficiency in early childhood.
  • Understanding the specific impact of iron status on infant development is crucial for timely intervention.

Purpose of the Study:

  • To evaluate the impact of iron deficiency, including non-anemic iron deficiency (NAID) and iron deficiency anemia (IDA), on infant developmental test scores.
  • To determine if iron supplementation can reverse any observed developmental deficits in infants.
  • To investigate the relationship between iron status and performance on standardized developmental assessments.

Main Methods:

  • A prospective, single-blind, controlled clinical intervention study involving 108 infants aged 6-30 months.
  • Infants were categorized into control, NAID, and IDA groups based on hemoglobin, serum ferritin, and MCV levels.
  • Developmental assessments using the Bayley Scales of Infant Development (BSID-I) and Denver Developmental Screening Test (DDST-II) were conducted before and after a 3-month intervention period involving oral iron for affected groups.

Main Results:

  • Infants with iron deficiency (both NAID and IDA) exhibited significantly lower scores on BSID-I and DDST-II compared to iron-sufficient controls.
  • Following 3 months of oral iron treatment, developmental scores improved, and the deficits observed in the IDA and NAID groups were no longer statistically significant.
  • Post-treatment, no significant differences in DDST-II results were noted between the treated IDA/NAID groups and the control group, suggesting reversibility of effects.

Conclusions:

  • Iron deficiency in infants is associated with impaired mental and motor development.
  • Iron therapy is effective in improving developmental test scores in infants with iron deficiency and iron deficiency anemia.
  • Early diagnosis and treatment of iron deficiency are essential to mitigate adverse effects on infant neurodevelopment.
Abstract

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