Association of dental enamel lead levels with risk factors for environmental exposure

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dc.contributor.authorOlympio, Kelly Polido Kaneshiro
dc.contributor.authorNaozuka, Juliana
dc.contributor.authorOliveira, Pedro Vitoriano
dc.contributor.authorCardoso, Maria Regina Alves
dc.contributor.authorBechara, Etelvino José Henriques [UNIFESP]
dc.contributor.authorGünther, Wanda Maria Risso
dc.contributor.institutionUniversidade de São Paulo (USP)
dc.contributor.institutionUniversidade Federal de São Paulo (UNIFESP)
dc.date.accessioned2016-01-24T14:05:30Z
dc.date.available2016-01-24T14:05:30Z
dc.date.issued2010-10-01
dc.description.abstractOBJECTIVE: To analyze household risk factors associated with high lead levels in surface dental enamel.METHODS: A cross-sectional study was conducted with 160 Brazilian adolescents aged 14-18 years living in poor neighborhoods in the city of Bauru, southeastern Brazil, from August to December 2008. Body lead concentrations were assessed in surface dental enamel acid-etch microbiopsies. Dental enamel lead levels were measured by graphite furnace atomic absorption spectrometry and phosphorus levels were measured by inductively coupled plasma optical emission spectrometry. the parents answered a questionnaire about their children's potential early (0-5 years old) exposure to well-known lead sources. Logistic regression was used to identify associations between dental enamel lead levels and each environmental risk factor studied. Social and familial covariables were included in the models.RESULTS: the results suggest that the adolescents studied were exposed to lead sources during their first years of life. Risk factors associated with high dental enamel lead levels were living in or close to a contaminated area (OR = 4.49; 95% CI: 1.69;11.97); and member of the household worked in the manufacturing of paints, paint pigments, ceramics or batteries (OR = 3.43; 95% CI: 1.31; 9.00). Home-based use of lead-glazed ceramics, low-quality pirated toys, anticorrosive paint on gates and/or sale of used car batteries (OR = 1.31; 95% CI: 0.56;3.03) and smoking (OR = 1.66; 95% CI: 0.52;5.28) were not found to be associated with high dental enamel lead levels.CONCLUSIONS: Surface dental enamel can be used as a marker of past environmental exposure to lead and lead concentrations detected are associated to well-known sources of lead contamination.en
dc.description.affiliationUniv São Paulo, Dept Saude Ambiental, FSP, BR-01246904 São Paulo, Brazil
dc.description.affiliationUniv São Paulo, Dept Quim Analit, Inst Quim, BR-01246904 São Paulo, Brazil
dc.description.affiliationUniv São Paulo, Dept Epidemiol, FSP, BR-01246904 São Paulo, Brazil
dc.description.affiliationUniv São Paulo, Dept Bioquim, IQ, BR-01246904 São Paulo, Brazil
dc.description.affiliationUniversidade Federal de São Paulo, Dept Ciencias Exatas & Terra, Diadema, SP, Brazil
dc.description.affiliationUnifespUniversidade Federal de São Paulo, Dept Ciencias Exatas & Terra, Diadema, SP, Brazil
dc.description.sourceWeb of Science
dc.format.extent851-858
dc.identifierhttp://dx.doi.org/10.1590/S0034-89102010000500010
dc.identifier.citationRevista de Saude Publica. São Paulo: Revista de Saude Publica, v. 44, n. 5, p. 851-858, 2010.
dc.identifier.doi10.1590/S0034-89102010000500010
dc.identifier.fileS0034-89102010000500010.pdf
dc.identifier.issn0034-8910
dc.identifier.scieloS0034-89102010000500010
dc.identifier.urihttp://repositorio.unifesp.br/handle/11600/32930
dc.identifier.wosWOS:000283864700010
dc.language.isoeng
dc.publisherRevista de Saude Publica
dc.relation.ispartofRevista de Saude Publica
dc.rightsinfo:eu-repo/semantics/openAccess
dc.subjectLead Poisoning, diagnosisen
dc.subjectDental Enamelen
dc.subjectEnvironmental Exposureen
dc.subjectAdolescenten
dc.subjectCross-Sectional Studiesen
dc.titleAssociation of dental enamel lead levels with risk factors for environmental exposureen
dc.typeinfo:eu-repo/semantics/article
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