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Ambient air pollutant concentrations during pregnancy and the risk of fetal growth restriction

Journal of epidemiology and community health (1979), 2009-06, Vol.63 (6), p.488-496 [Peer Reviewed Journal]

2009 BMJ Publishing Group ;Copyright © 2009 BMJ Publishing Group ;2009 INIST-CNRS ;Copyright: 2009 2009 BMJ Publishing Group ;ISSN: 0143-005X ;EISSN: 1470-2738 ;DOI: 10.1136/jech.2008.082792 ;PMID: 19359274 ;CODEN: JECHDR

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Title:
Ambient air pollutant concentrations during pregnancy and the risk of fetal growth restriction
Author: Rich, D Q ; Demissie, K ; Lu, S-E ; Kamat, L ; Wartenberg, D ; Rhoads, G G
Subjects: Abruptio placentae ; Adult ; Age ; Air pollutants ; Air Pollutants - analysis ; Air Pollutants - toxicity ; Air pollution ; Biological and medical sciences ; Birth weight ; Births ; Education ; Environment. Living conditions ; Environmental Monitoring - methods ; Environmental protection ; Epidemiologic Methods ; Epidemiological Monitoring ; Female ; Fetal Growth Retardation - epidemiology ; Fetal Growth Retardation - etiology ; First trimester of pregnancy ; General aspects ; Health risk assessment ; Hispanic people ; Humans ; Infant, Newborn ; Infant, Small for Gestational Age ; Infant, Very Low Birth Weight ; Maternal Age ; Maternal Exposure - adverse effects ; Medical sciences ; Menstruation ; Miscellaneous ; Mothers ; New Jersey - epidemiology ; Nitrogen dioxide ; Particulate Matter - analysis ; Particulate Matter - toxicity ; Pollutants ; Population education ; Preeclampsia ; Pregnancy ; Pregnancy complications ; Pregnancy Complications - epidemiology ; Prenatal development ; Public health. Hygiene ; Public health. Hygiene-occupational medicine ; Research reports ; Social Class ; Third trimester of pregnancy ; Urban areas ; Young Adult
Is Part Of: Journal of epidemiology and community health (1979), 2009-06, Vol.63 (6), p.488-496
Description: Background:Previous studies of air pollution and birth outcomes have not evaluated whether complicated pregnancies might be susceptible to the adverse effects of air pollution. It was hypothesised that trimester mean pollutant concentrations could be associated with fetal growth restriction, with larger risks among complicated pregnancies.Methods:A multiyear linked birth certificate and maternal/newborn hospital discharge dataset of singleton, term births to mothers residing in New Jersey at the time of birth, who were white (non-Hispanic), African–American (non-Hispanic) or Hispanic was used. Very small for gestational age (VSGA) was defined as a fetal growth ratio <0.75, small for gestational age (SGA) as ⩾0.75 and <0.85, and ‘reference’ births as ⩾0.85. Using polytomous logistic regression, associations between mean pollutant concentrations during the first, second and third trimesters and the risks of SGA/VSGA were examined, as well as effect modification of these associations by several pregnancy complications.Results:Significantly increased risk of SGA was associated with first and third trimester PM2.5 (particulate matter <2.5 μm in aerodynamic diameter), and increased risk of VSGA associated with first, second and third trimester nitrogen dioxide (NO2) concentrations. Pregnancies complicated by placental abruption and premature rupture of the membrane had ∼two- to fivefold greater excess risks of SGA/VSGA than pregnancies not complicated by these conditions, although these estimates were not statistically significant.Conclusions:These findings suggest that ambient air pollution, perhaps specifically traffic emissions during early and late pregnancy and/or factors associated with residence near a roadway during pregnancy, may affect fetal growth. Further, pregnancy complications may increase susceptibility to these effects in late pregnancy.
Publisher: London: BMJ Publishing Group Ltd
Language: English
Identifier: ISSN: 0143-005X
EISSN: 1470-2738
DOI: 10.1136/jech.2008.082792
PMID: 19359274
CODEN: JECHDR
Source: ProQuest One Psychology
MEDLINE
Alma/SFX Local Collection
ProQuest Central

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Ambient air pollutant concentrations during pregnancy and the risk of fetal growth restriction

2009 BMJ Publishing Group ;Copyright © 2009 BMJ Publishing Group ;2009 INIST-CNRS ;Copyright: 2009 2009 BMJ Publishing Group ;ISSN: 0143-005X ;EISSN: 1470-2738 ;DOI: 10.1136/jech.2008.082792 ;PMID: 19359274 ;CODEN: JECHDR

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