Relation between cord blood mercury levels and early child development in a World Trade Center cohort
2009

Cord Blood Mercury and Early Child Development

publication Evidence: moderate

Author Information

Author(s): José G. Dórea

Primary Institution: Universidade de Brasilia

Hypothesis

How does prenatal mercury exposure from the World Trade Center disaster affect child development?

Conclusion

The study suggests that prenatal mercury exposure may impact neurodevelopment, but important confounding factors were not included in the analysis.

Supporting Evidence

  • Prenatal mercury exposure may affect neurodevelopmental outcomes.
  • Breastfeeding and thimerosal exposure were not included in the study's analysis.
  • Children born prematurely are at higher risk for lower neurocognitive achievement.

Takeaway

This study looks at how mercury from the World Trade Center disaster might affect how children develop, but it missed some important details.

Methodology

The study assessed psychomotor and intelligence scores in children exposed to mercury during pregnancy.

Potential Biases

Potential bias due to missing important variables like breastfeeding and thimerosal exposure.

Limitations

The study did not account for early thimerosal exposure and feeding methods, which could influence outcomes.

Participant Demographics

Children delivered at term in Lower Manhattan after September 11, 2001.

Digital Object Identifier (DOI)

10.1289/ehp.0800155

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