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Maternal exposure to short-to medium-term outdoor air pollution and obstetric and neonatal outcomes: a systematic review

Citation

Melody, SM and Ford, J and Wills, K and Venn, A and Johnston, FH, Maternal exposure to short-to medium-term outdoor air pollution and obstetric and neonatal outcomes: a systematic review, Environmental Pollution, 244 pp. 915-925. ISSN 0269-7491 (2019) [Refereed Article]

Copyright Statement

Copyright 2018 Elsevier Ltd.

DOI: doi:10.1016/j.envpol.2018.10.086

Abstract

Background: Little is known about the impacts of maternal exposure to acute episodes of outdoor air pollution, such as that resulting from wildfires, on obstetric and neonatal outcomes. This systematic review aims to synthesise the existing literature exploring the relationship between maternal exposure to short-to medium-term changes in outdoor air quality and obstetric and neonatal outcomes.

Methods: A systematic search of peer-reviewed articles using PubMed, Cochrane Library, EMBASE, ScienceDirect, Web of Science, ProQuest, GreenFILE and Scopus was conducted in January 2018 using selected search terms. Quality of included studies were assessed using the Newcastle Ottawa Scale.

Results: Eleven studies were included; eight assessed the impact of maternal exposure to air pollution exacerbation events, such as wildfires, oil well fires and volcanic eruptions, and three assessed the impact of improvement events, such as the 2018 Beijing Olympics and closure of industrial activities, on obstetric and neonatal outcomes. Studies were highly heterogenous in methodology. Six studies found a significant association between acute changes in air quality and markers of fetal growth restriction, while two did not. Three studies found an adverse association between acute changes in air quality and markers of gestational maturity, and one did not.

Conclusion: Overall, there is some evidence that maternal exposure to acute changes in air quality of short-to medium-term duration increases the risk of fetal growth restriction and preterm birth. The relationship for other adverse obstetric or neonatal outcomes is less clear.

Item Details

Item Type:Refereed Article
Keywords:air pollution, fetal growth restriction, maternal exposure, pregnancy, premature birth
Research Division:Medical and Health Sciences
Research Group:Paediatrics and Reproductive Medicine
Research Field:Foetal Development and Medicine
Objective Division:Health
Objective Group:Public Health (excl. Specific Population Health)
Objective Field:Environmental Health
UTAS Author:Melody, SM (Dr Shannon Melody)
UTAS Author:Wills, K (Dr Karen Wills)
UTAS Author:Venn, A (Professor Alison Venn)
UTAS Author:Johnston, FH (Associate Professor Fay Johnston)
ID Code:131598
Year Published:2019
Web of Science® Times Cited:5
Deposited By:Menzies Institute for Medical Research
Deposited On:2019-03-26
Last Modified:2019-04-03
Downloads:0

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