Document Detail

Maternal exposure to low levels of ambient air pollution and preterm birth in Brisbane, Australia.
MedLine Citation:
PMID:  16907939     Owner:  NLM     Status:  MEDLINE    
BACKGROUND: [corrected] There is evidence that maternal exposure to ambient air pollution during pregnancy is associated with adverse birth outcomes. OBJECTIVE: To assess preterm birth (PTB) in relation to maternal exposure to ambient air pollution. DESIGN: Retrospective cohort. SETTING: Brisbane, Australia. POPULATION: A total of 28,200 singleton live births for the period of 1 July 2000 to 30 June 2003. METHODS: Average maternal exposure estimates for ambient particulate matter (PM(10) and bsp), ozone (O(3)) and nitrogen dioxide were calculated over the first 3 months after last menstrual period (LMP) and the last 3 months prior to birth (individually and combined as trimesters). MAIN OUTCOME MEASURES: PTB was defined as gestation <37 weeks and odds ratios (OR) were calculated for PTB per interquartile range increase in the maternal exposure estimate for each pollutant. Various covariates were controlled for, including season of birth. RESULTS: Exposure to PM(10) and O(3) during trimester one was associated with an increased risk of PTB (OR = 1.15, 95% CI 1.06-1.25 and OR = 1.26, 95% CI 1.10-1.45, respectively). The PM(10) exposure effect associated with trimester one was strongly related to exposure during the first month post-LMP (PM(10), month one; OR = 1.19, 95% CI 1.13-1.26). CONCLUSION: These results suggest that maternal exposure to low levels of ambient air pollution is associated with PTB.
C Hansen; A Neller; G Williams; R Simpson
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  BJOG : an international journal of obstetrics and gynaecology     Volume:  113     ISSN:  1470-0328     ISO Abbreviation:  BJOG     Publication Date:  2006 Aug 
Date Detail:
Created Date:  2006-08-15     Completed Date:  2006-09-14     Revised Date:  2008-07-16    
Medline Journal Info:
Nlm Unique ID:  100935741     Medline TA:  BJOG     Country:  England    
Other Details:
Languages:  eng     Pagination:  935-41     Citation Subset:  AIM; IM    
Faculty of Science, Health and Education & Institute for Sustainability, Health and Regional Engagement, University of the Sunshine Coast, Maroochydore, Queensland, Australia.
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MeSH Terms
Air Pollutants / toxicity*
Cohort Studies
Maternal Exposure / adverse effects*
Nitrogen Dioxide / toxicity*
Obstetric Labor, Premature / epidemiology*
Ozone / toxicity*
Particle Size
Pregnancy Trimester, First
Queensland / epidemiology
Retrospective Studies
Risk Factors
Reg. No./Substance:
0/Air Pollutants; 10028-15-6/Ozone; 10102-44-0/Nitrogen Dioxide

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

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