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Association between pre-eclampsia and locally derived traffic-related air pollution: a retrospective cohort study.
MedLine Citation:
PMID:  22879639     Owner:  NLM     Status:  Publisher    
BackgroundPre-eclampsia is a common complication of pregnancy and is a major cause of fetal-maternal mortality and morbidity. Despite a number of plausible mechanisms by which air pollutants might contribute to this process, few studies have investigated the association between pre-eclampsia and traffic emissions, a major contributor to air pollution in urban areas.ObjectiveThe authors investigated the association between traffic-related air pollution and risk of pre-eclampsia in a maternal population in the urban centre of Perth, Western Australia.MethodThe authors estimated maternal residential exposure to a marker for traffic-related air pollution (nitrogen dioxide, NO(2)) during pregnancy for 23 452 births using temporally adjusted land-use regression. Logistic regression was used to investigate associations with pre-eclampsia.ResultsEach IQR increase in levels of traffic-related air pollution in whole pregnancy and third trimester was associated with a 12% (1%-25%) and 30% (7%-58%) increased risk of pre-eclampsia, respectively. The largest effect sizes were observed for women aged younger than 20 years or 40 years or older, aboriginal women and women with pre-existing and gestational diabetes, for whom an IQR increase in traffic-related air pollution in whole pregnancy was associated with a 34% (5%-72%), 35% (0%-82%) and 53% (7%-219%) increase in risk of pre-eclampsia, respectively.ConclusionsElevated exposure to traffic-related air pollution in pregnancy was associated with increased risk of pre-eclampsia. Effect sizes were highest for elevated exposures in third trimester and among younger and older women, aboriginal women and women with diabetes.
Gavin Pereira; Fatima Haggar; Antonia W Shand; Carol Bower; Angus Cook; Natasha Nassar
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2012-8-9
Journal Detail:
Title:  Journal of epidemiology and community health     Volume:  -     ISSN:  1470-2738     ISO Abbreviation:  J Epidemiol Community Health     Publication Date:  2012 Aug 
Date Detail:
Created Date:  2012-8-10     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  7909766     Medline TA:  J Epidemiol Community Health     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Centre for Child Health Research, University of Western Australia, Perth, Western Australia, Australia.
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