Blood lead secular trend in a cohort of children in Mexico City (1987-2002)

Environmental Health Perspectives
Lourdes SchnaasE Perroni

Abstract

We determined the secular trend in blood lead levels in a cohort of 321 children born in Mexico City between 1987 and 1992. Blood lead level was measured every 6 months during a 10-year period. We modeled the effect of yearly air lead concentration nested within the calendar year in which the child was born, family use of lead-glazed pottery, socioeconomic status, year in which the child was born, age of the child at the time of blood lead measurement, place of residence, and an indicator variable for subjects with complete or incomplete blood lead values. The yearly mean of air lead of the Valley of Mexico decreased from its highest level of 2.80 microg/m3 in 1987 to 0.07 microg/m3 in 2002. The contribution of air lead to blood lead according to year of birth was strongest for subjects born in 1987 and fell to nearly zero for children born in 1992. The geometric mean of the entire cohort rose from 8.4 microg/dL in the first year of life to 10.1 microg/dL in the second and decreased thereafter until it reached 6.4 microg/dL at 10 years of age. Children of families who used lead-glazed ceramics had blood lead levels 18.5% higher than did children of nonusing families. Children who belonged to the lowest socioeconomic levels had ...Continue Reading

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Citations

May 6, 2006·Environmental Health Perspectives·Lourdes SchnaasEstela Perroni
Jun 27, 2008·Environmental Health : a Global Access Science Source·R SmoldersG Schoeters
Apr 26, 2011·Environmental Health and Preventive Medicine·Jun YoshinagaMasayuki Kaji
Dec 11, 2014·International Journal of Environmental Research and Public Health·Paulina FaríasHoracio Riojas-Rodríguez
Dec 31, 2015·Environmental Health : a Global Access Science Source·Alejandra CantoralAdrienne S Ettinger
Mar 15, 2016·Environmental Research·Marcela Tamayo y OrtizHéctor Lamadrid-Figueroa
Jun 15, 2016·Nutritional Neuroscience·Araceli Diaz-RuizSergio Montes
Feb 6, 2017·Environment International·Kelly Polido Kaneshiro OlympioEtelvino José Henriques Bechara
Jun 4, 2015·International Journal of Environmental Research and Public Health·Sinye LimHo-Jang Kwon
Dec 3, 2014·Annals of Global Health·Jack CaravanosRichard Fuller
Oct 3, 2018·International Journal of Environmental Research and Public Health·Ivan PanticMartha María Téllez-Rojo
Apr 1, 2010·Community Dentistry and Oral Epidemiology·Wei-Hsiang ChangTrong-Neng Wu
Oct 6, 2010·International Journal of Developmental Neuroscience : the Official Journal of the International Society for Developmental Neuroscience·Devon L GrahamMichael T Williams
Feb 1, 2013·International Journal of Pediatrics·Lindsey M HortonPaula Burgess
Mar 21, 2007·Environmental Health Perspectives·Mary Jean BrownHoward Frumkin
Oct 23, 2008·Environmental Science & Technology·Ryan C MoffetKimberly A Prather

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Methods Mentioned

BETA
atomic absorption spectrometry

Software Mentioned

StatXact
SPSS
Cytel

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