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Secular trend in blood lead levels in a cohort of Mexico City children.

Auteur
ROTHENBERG (S.J.) MEX. Center for Research in Population Health. National Institute of Public Health. Cuernavaca Morelos.; SCHNAAS (L.); PERRONI (E.); HERNANDEZ (R.M.); KARCHMER (S.)
Collectivité auteur
Department of Developmental Neurobiology. National Institute of Perinatology. Mexico City. MEX
Source
ARCHIVES OF ENVIRONMENTAL HEALTH, Vol 53, N° 3, 1998, pages 231-235, 22 réf.
Type de document
ARTICLE
Langue
Anglais
Résumé
We determined the secular trend in blood lead levels in a cohort of 104 children born in Mexico City between 1987 and 1993. We grouped children by the calendar year in which they reached 6 mo of age and measured blood lead levels every 6 mo until they attained 36 mo of age. The overall geometric mean blood lead level was 9.6 mug/dl (range=1.5-59.5 mug/dl). A repeated measures analysis of variance revealed a highly significant linear trend in blood lead level with year (p<. 001) ; there was a maximum decrease of 7.6 mug/dl between 1989 and 1993. There was a highly significant quadratic age effect (p<. 001) ; blood lead levels rose between 6 and 18 mo of age and decreased thereafter. There was a marginally significant interaction between age of the child and year. Family use of lead-glazed pottery significantly elevated blood lead levels (p=028). The downward trend in blood lead levels during the time period of study corresponded to the reduction in various sources of lead exposure.
Mots-clés BDSP
Plomb Polluant Environnement Epidémiologie Taux Sang Enfant Homme Milieu urbain Mexique Amérique centrale Amérique Tendance séculaire
Mots-clés Pascal
Plomb Métal lourd Polluant Environnement Relation temps réponse Epidémiologie Taux Sang Enfant Homme Milieu urbain Mexique Amérique Centrale Amérique Etude longitudinale Tendance
Mots-clés Pascal anglais
Lead Heavy metal Pollutant Environment Time response relation Epidemiology Rate Blood Child Human Urban environment Mexico Central America America Follow up study Trend
Provenance

Inist-CNRS - Institut de l'Information Scientifique et Technique

Identifiant BDSP
168979
Création de la notice
1998-11-27
Dernière mise à jour
1998-11-27

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