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IJE Advance Access published online on April 10, 2006

International Journal of Epidemiology, doi:10.1093/ije/dyl067
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Published by Oxford University Press on behalf of the International Epidemiological Association © The Author 2006; all rights reserved.
Accepted March 14, 2006

Original paper

Prenatal exposure to 1,1-dichloro-2,2-bis (p-chlorophenyl)ethylene (p,p'-DDE) in relation to child growth

Núria Ribas-Fitó 1 *, Beth C. Gladen 2, John W. Brock 3, Mark A. Klebanoff 4, and Matthew P. Longnecker 2

1 Department of Health and Human Services, National Institute of Environmental Health Sciences, National Institutes of Health, USA; Respiratory and Environmental Health Research Unit, Institut Municipal d'Investigació Mèdica, Barcelona, Spain
2 Department of Health and Human Services, National Institute of Environmental Health Sciences, National Institutes of Health, USA
3 Department of Health and Human Services, National Center for Environmental Health, Centers for Disease Control and Prevention, USA
4 Department of Health and Human Services, National Institute of Child Health and Human Development, National Institutes of Health, USA

* To whom correspondence should be addressed.
Núria Ribas-Fitó, E-mail: nribas{at}imim.es


   Abstract

Objective To examine the relation between prenatal 1,1-dichloro-2,2-bis(p-chlorophenyl) ethylene (p,p'-DDE) exposure (a metabolite of the insecticide DDT) and child growth during the first 7 years of life.

Design Prospective cohort study.

Participants 1712 children born between 1959 and 1966 with measured p,p'-DDE concentrations in their mother's serum samples from pregnancy.

Setting Multicenter US Collaborative Perinatal Project (CPP).

Results The highest prenatal concentrations of p,p'-DDE (≥60 µg/l), as compared with the lowest (<15 µg/l), were associated with decreased height at age 1 year [adjusted coefficient (SE) = -0.72 cm (0.37), n = 1540], 4 years [-1.14 cm (0.56), n = 1289], and 7 years [-2.19 (0.46), n = 1371]. Among subjects in lower categories of exposure no association was observed.

Conclusions The findings suggest that high prenatal exposure to p,p'-DDE decreases height in children. Impaired growth may be a general indicator of toxicity and suggests that specific organ systems (e.g. endocrine) could be affected.

Keywords: p,p'-DDE; growth; children; cohort.
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