Organophosphate Pesticide Exposure and Neurodevelopment in Young Mexican-American Children
Author Information
Author(s): Brenda Eskenazi, Amy R. Marks, Asa Bradman, Kim Harley, Dana B. Barr, Caroline Johnson, Norma Morga, Nicholas P. Jewell
Primary Institution: Center for Children’s Environmental Health Research, School of Public Health, University of California, Berkeley
Hypothesis
What is the relationship between prenatal and child organophosphate urinary metabolite levels and children's neurodevelopment?
Conclusion
Prenatal exposure to organophosphate pesticides is associated with negative impacts on mental development and increased risk of pervasive developmental problems in children at 24 months of age.
Supporting Evidence
- Pregnancy DAP levels were negatively associated with mental development indices.
- Child DAP levels were positively associated with mental development indices.
- At 24 months, 50% of children scored below the normal range for mental development.
Takeaway
Kids whose moms were exposed to certain pesticides while pregnant might have trouble with thinking and development when they grow up.
Methodology
The study measured urinary metabolites of organophosphate pesticides in mothers and children and assessed neurodevelopment using the Bayley Scales of Infant Development.
Potential Biases
Potential biases may arise from self-reported data and the specific demographic characteristics of the study population.
Limitations
The study did not adjust for multiple comparisons and may have limited generalizability due to its specific population.
Participant Demographics
Participants were primarily Latino farm-worker families in California, with most mothers born in Mexico and a significant portion living below the poverty threshold.
Statistical Information
P-Value
0.05
Confidence Interval
95% CI, −6.6 to −0.5
Statistical Significance
p<0.05
Digital Object Identifier (DOI)
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