In utero exposure to background levels of polychlorinated biphenyls and cognitive functioning among school-age children.

@article{Gray2005InUE,
  title={In utero exposure to background levels of polychlorinated biphenyls and cognitive functioning among school-age children.},
  author={Kimberly A. Gray and Mark A Klebanoff and John W Brock and Haibo Zhou and Rebecca Darden and Larry L Grandjean Needham and Matthew Paul Longnecker},
  journal={American journal of epidemiology},
  year={2005},
  volume={162 1},
  pages={17-26}
}
Polychlorinated biphenyls (PCBs) are ubiquitous environmental contaminants. In utero exposure to background levels of PCBs has been associated with intellectual impairment among children in most, but not all, studies. The authors evaluated prenatal PCB exposure in relation to cognitive test (intelligence quotient (IQ)) scores on the Wechsler Intelligence Scale for Children at age 7 years. Pregnant women were recruited from 12 US study centers from 1959 to 1965, and their children were followed… CONTINUE READING

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