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HERO ID
3860090
Reference Type
Journal Article
Subtype
Review
Title
Phthalate esters and childhood asthma: A systematic review and congener-specific meta-analysis
Author(s)
Li, MC; Chen, CH; Guo, YL
Year
2017
Is Peer Reviewed?
Yes
Journal
Environmental Pollution
ISSN:
0269-7491
EISSN:
1873-6424
Publisher
ELSEVIER SCI LTD
Location
OXFORD
Volume
229
Page Numbers
655-660
Language
English
PMID
28692937
DOI
10.1016/j.envpol.2017.06.083
Web of Science Id
WOS:000410010200068
URL
https://www.scopus.com/inward/record.uri?eid=2-s2.0-85021733220&doi=10.1016%2fj.envpol.2017.06.083&partnerID=40&md5=373a1376efbda114e99247fb8b23214d
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Abstract
Introduction: Exposure to phthalate esters (PAEs) has been associated with childhood asthma, but the congener-specific effects of PAEs on childhood asthma were unclear. We aimed to systematically review and meta-analyze observational studies on the associations between specific effects of PAEs and the risk of childhood asthma.
Material and methods: Relevant studies were identified by searching three databases up to October 20, 2016. The reference lists of the retrieved articles were also reviewed. We included observational studies that reported risk estimates with 95% confidence intervals (CIs) for the associations between phthalate exposure and the risk of childhood asthma. Fixed-effects models were generally applied to calculate pooled risk estimates. When heterogeneity was present, random-effects models were applied.
Results: A total of nine studies featuring 43 data points were included in our final meta-analyses. Results indicated that the benzyl butyl phthalate (BBzP) exposure had a significant association with the risk of childhood asthma. The Odd Ratios (ORs) were from 1.39 to 1.41 for different combination strategies. Subgroup analyses by different exposure period or samples used showed that prenatal exposure to BBzP had a stronger association with the risk of childhood asthma (OR = 1.38, 95% CI = 1.09–1.75), compared to those with postnatal exposure. Besides, the association was evident when the phthalate exposure was measured from dust samples. The OR for the associations between di-2-ethylhexyl phthalate (DEHP) in dust and childhood asthma was 2.71 (95% CI = 1.39–5.28), and 2.08 (95% CI = 1.10–3.92) for BBzP.
Conclusions: Our study suggested a positive association between DEHP and BBzP exposure and childhood asthma. Future studies are warranted to identify the underlying mechanisms of the association.
Keywords
Phthalate esters; Childhood asthma; Systematic review; Meta-analysis
Tags
IRIS
•
BBP (Butyl benzyl phthalate)
Literature Search
Literature Search: February 2017 - July 2017
Pubmed
•
Dibutyl Phthalate (DBP)
Database Searches
LitSearch Jan 2017 - July 2017
Pubmed
•
Phthalates – Targeted Search for Epidemiological Studies
Source - August 2018 Update
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Reviews
Pubmed
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