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HERO ID
677233
Reference Type
Journal Article
Subtype
Review
Title
Ambient air pollution and risk of congenital anomalies: A systematic review and meta-analysis
Author(s)
Vrijheid, M; Martinez, D; Manzanares, S; Dadvand, P; Schembari, A; Rankin, J; Nieuwenhuijsen, M
Year
2011
Is Peer Reviewed?
Yes
Journal
Environmental Health Perspectives
ISSN:
0091-6765
EISSN:
1552-9924
Volume
119
Issue
5
Page Numbers
598-606
Number of Pages
9
Language
English
PMID
21131253
DOI
10.1289/ehp.1002946
Web of Science Id
WOS:000290089800022
URL
https://ehp.niehs.nih.gov/doi/10.1289/ehp.1002946
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Abstract
Objective: To systematically review epidemiological studies on ambient air pollution and congenital anomalies and conduct meta-analyses for a number of air pollutant-anomaly combinations.
Data sources and extraction: From bibliographic searches we extracted ten original epidemiological studies that examined the association between congenital anomaly risk and concentrations of air pollutants. Meta-analyses were conducted if at least four studies published risk estimates for the same pollutant and anomaly group. Summary risk estimates were calculated for 1) risk at high versus low exposure level in each study, and 2) risk per unit increase in continuous pollutant concentration.
Data synthesis: Each individual study reported statistically significantly increased risks for some combinations of air pollutants and congenital anomalies, among many combinations tested. In meta-analyses, NO2 and SO2 exposures were related to increases in risk of coarctation of the aorta (OR per 10 ppb NO2=1.17, 95%CI 1.00-1.36; OR per 1 ppb SO2=1.07, 95%CI 1.01, 1.13) and tetralogy of Fallot (OR per 10ppb NO2=1.20, 95%CI 1.02, 1.42; OR per 1 ppb SO2=1.03, 95%CI 1.01, 1.05), and PM10 exposure to an increased risk of atrial septal defects (OR per 10 μg/m3=1.14, 95%CI 1.01, 1.28). Meta-analyses found no statistically significant increase in risk of other cardiac anomalies and oral clefts.
Conclusions: We find some evidence for an effect of ambient air pollutants on congenital cardiac anomaly risk. Improvements in the areas of exposure assessment, outcome harmonization, assessment of other congenital anomalies, and mechanistic knowledge are needed to advance this field.
Keywords
AIR pollution;EPIDEMIOLOGY;CONFIDENCE intervals;MEDLINE;META-analysis;PREGNANCY;SYSTEMATIC reviews (Medical research);EVIDENCE-based medicine;DATA analysis
Month
05
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LitSearch-NOx (2024)
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