Birth Defects in Farmworkers' Infants Linked to Pesticide Exposure
Author Information
Author(s): Geoffrey M. Calvert, Walter A. Alarcon, Ann Chelminski, Mark S. Crowley, Rosanna Barrett, Adolfo Correa, Sheila Higgins, Hugo L. Leon, Jane Correia, Alan Becker, Ruth H. Allen, Elizabeth Evans
Primary Institution: National Institute for Occupational Safety and Health, Centers for Disease Control and Prevention
Hypothesis
Is there a link between pesticide exposure during pregnancy and birth defects in infants born to farmworkers?
Conclusion
The study found suggestive evidence of a potential link between pesticide exposure and birth defects, but could not establish a causal relationship.
Supporting Evidence
- Three infants with congenital anomalies were born within 8 weeks to mothers working for the same tomato grower.
- All three mothers worked during the critical period of organogenesis in fields treated with pesticides.
- Regulatory inspections revealed numerous violations at the farms where the mothers worked.
Takeaway
Three mothers who worked on farms with pesticide exposure had babies with serious birth defects, which raises concerns about pesticide safety for pregnant workers.
Methodology
The study involved case reports and pesticide exposure histories collected from mothers and health departments.
Potential Biases
Information on pesticide exposure was based on company records, which may be inaccurate.
Limitations
The study could not fully characterize the birth defect risk due to incomplete data on the grower's employees and potential undetected birth defects.
Participant Demographics
All three mothers were Mexican, undocumented immigrants, and sought late prenatal care.
Digital Object Identifier (DOI)
Want to read the original?
Access the complete publication on the publisher's website