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No difference in iron status between children with low and moderate lead exposure
J R Serwint1, A I Damokosh, O G Berger
1Department of Pediatrics, Johns Hopkins University, Baltimore, Maryland, USA.
Insights
Children with moderately elevated blood lead levels (20-44 microg/dL) showed no differences in iron status compared to those with lower levels (<10 microg/dL). Testing or treating iron deficiency solely based on these lead levels is not recommended.
Area of Science:
- Environmental Health
- Pediatrics
- Nutritional Science
Background:
- Lead exposure is a significant public health concern in children.
- Iron deficiency is common in young children and can affect development.
- The relationship between moderate lead exposure and iron status requires clarification.
Purpose of the Study:
- To compare the iron status of children with moderately elevated blood lead levels to those with lower levels.
- To determine if moderate lead exposure impacts iron status in toddlers and young children.
Main Methods:
- A comparative study involving children aged 11 to 33 months.
- Group 1: Confirmed blood lead levels of 20 to 44 microg/dL.
- Group 2: Demographically similar children with blood lead levels <10 microg/dL.
Main Results:
- No significant differences in iron status were observed between the two groups.
- Iron status parameters did not correlate with blood lead levels in the range studied.
Conclusions:
- Moderately elevated blood lead levels alone do not warrant laboratory investigation or empirical treatment for iron deficiency.
- Clinical decisions regarding iron status should not be based solely on blood lead levels between 20-44 microg/dL.
Abstract:
We compared the iron status between children 11 to 33 months old with confirmed blood lead levels of 20 to 44 microg/dL and demographically similar children with blood lead levels of <10 microg/dL. There were no differences. Laboratory investigation or empirical treatment for iron deficiency is not justified on the basis of moderately elevated blood lead levels alone.
