Maternal exposure to benzene and toluene and preterm birth. A longitudinal study
São Paulo med. j
; 137(6): 486-490, Nov.-Dec. 2019. tab
Article
em En
| LILACS
| ID: biblio-1094524
Biblioteca responsável:
BR1.1
ABSTRACT
ABSTRACT BACKGROUND:
Exposure to air pollutants has several effects on human health, including during pregnancy.OBJECTIVE:
To identify whether exposure to benzene and toluene among pregnant women contributes to preterm delivery. DESIGN ANDSETTING:
Longitudinal study using data on newborns from mothers living in São José dos Campos (SP) in 2016, who had been exposed to benzene and toluene.METHODS:
A logistic regression model with three hierarchical levels was constructed using maternal variables relating to newborns, and using benzene and toluene concentrations in quartiles. Occurrences of cesarean births, twins or malformations were excluded. Maternal exposure windows of 5, 10, 15, 30, 60 and 90 days prior to delivery were considered.RESULTS:
Out of the 9,562 live births, 3,671 newborns were included and 343 newborns were born at less than 37 weeks of gestation (9.3%). The average birth weight was 3,167.2 g. Exposure to benzene and toluene was significantly associated (P = 0.04) with preterm delivery in the five-day window. There was no association in any of the other exposure windows.CONCLUSIONS:
It was possible to identify that maternal exposure to benzene and toluene has an acute effect on preterm delivery.Palavras-chave
Texto completo:
1
Índice:
LILACS
Assunto principal:
Tolueno
/
Benzeno
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Exposição Materna
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Nascimento Prematuro
Tipo de estudo:
Etiology_studies
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Observational_studies
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Prognostic_studies
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Risk_factors_studies
Limite:
Adult
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Female
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Humans
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Male
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Newborn
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Pregnancy
Idioma:
En
Revista:
São Paulo med. j
Assunto da revista:
Cirurgia Geral
/
Cincia
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Ginecologia
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MEDICINA
/
Medicina Interna
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Obstetr¡cia
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Pediatria
/
Sa£de Mental
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Sa£de P£blica
Ano de publicação:
2019
Tipo de documento:
Article