Abstract:
:There are still many uncertainties regarding the risk of adverse pregnancy outcomes associated with exposure to drinking water disinfection by-products. In Montréal, Québec, Canada, we carried out a hospital-based case-control study including 493 cases of intrauterine growth restriction defined as birth weight below the 10th percentile for gestational age and sex, according to Canadian standards. Controls were babies (n = 472) delivered at the same hospital whose birth weight was at or above the 10th percentile, matched for gestational age, race, and sex. Exposure to total and specific trihalomethanes was measured using regulatory data collected by municipalities and the provincial Ministry of Environment. Residential history, water drinking, and shower habits during pregnancy, as well as known risk factors for intrauterine growth restriction, were measured with a face-to-face interview with all mothers. Mothers and newborns were characterized for two genetic polymorphisms, one in the CYP2E1 gene (G1259C), and another in the 5,10-methylenetetrahydrofolate reductase (MTHFR) gene (C677T). Exposure to specific and total trihalomethanes from drinking water, determined for 458 cases and 426 controls, did not result in an increased risk of intrauterine growth restriction. However, significant effect modification was observed between newborns with and without the CYP2E1 variant; among newborns with the variant, the adjusted odds ratio for intrauterine growth restriction associated with exposure to average total trihalomethanes above the 90th percentile (corresponding to 29.4 microg/L) was 13.20 (95% confidence interval, 1.19-146.72). These findings suggest that exposure to trihalomethanes at the highest levels can affect fetal growth but only in genetically susceptible newborns.
journal_name
Environ Health Perspectjournal_title
Environmental health perspectivesauthors
Infante-Rivard Cdoi
10.1289/ehp.7003subject
Has Abstractpub_date
2004-08-01 00:00:00pages
1213-6issue
11eissn
0091-6765issn
1552-9924journal_volume
112pub_type
杂志文章abstract:BACKGROUND:Previous literature suggests an association between organochlorines and behavioral measures in childhood, including inattention. OBJECTIVE:This study was designed to assess whether prenatal organochlorine exposure is associated with measures of attention in early infancy. METHODS:We investigated an associa...
journal_title:Environmental health perspectives
pub_type: 杂志文章
doi:10.1289/ehp.10553
更新日期:2008-05-01 00:00:00
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journal_title:Environmental health perspectives
pub_type: 杂志文章
doi:10.1289/ehp.7475
更新日期:2005-01-01 00:00:00
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journal_title:Environmental health perspectives
pub_type: 杂志文章
doi:10.1289/ehp.7930185
更新日期:1979-06-01 00:00:00
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journal_title:Environmental health perspectives
pub_type: 杂志文章,评审
doi:10.1289/ehp.94102s10155
更新日期:1994-12-01 00:00:00
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journal_title:Environmental health perspectives
pub_type: 杂志文章
doi:10.1289/ehp.75105
更新日期:1975-04-01 00:00:00
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更新日期:2012-04-01 00:00:00
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更新日期:2015-08-01 00:00:00
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更新日期:2003-09-01 00:00:00
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journal_title:Environmental health perspectives
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doi:10.1289/ehp.9086107
更新日期:1990-06-01 00:00:00
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pub_type: 杂志文章,评审
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更新日期:1996-12-01 00:00:00
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pub_type: 杂志文章
doi:10.1289/ehp.845725
更新日期:1984-08-01 00:00:00
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doi:10.1289/ehp.10486
更新日期:2007-12-01 00:00:00
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journal_title:Environmental health perspectives
pub_type: 杂志文章,评审
doi:10.1289/ehp.98106s61513
更新日期:1998-12-01 00:00:00
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journal_title:Environmental health perspectives
pub_type: 杂志文章
doi:10.1289/ehp.00108983
更新日期:2000-10-01 00:00:00
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journal_title:Environmental health perspectives
pub_type: 杂志文章
doi:10.1289/ehp.1002681
更新日期:2011-07-01 00:00:00
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journal_title:Environmental health perspectives
pub_type: 杂志文章
doi:10.1289/ehp.7559
更新日期:2005-04-01 00:00:00
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journal_title:Environmental health perspectives
pub_type: 杂志文章
doi:10.1289/ehp.6336
更新日期:2003-11-01 00:00:00
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journal_title:Environmental health perspectives
pub_type: 杂志文章
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更新日期:2019-10-01 00:00:00
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journal_title:Environmental health perspectives
pub_type: 杂志文章,评审
doi:10.1289/ehp.9084155
更新日期:1990-03-01 00:00:00
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journal_title:Environmental health perspectives
pub_type: 杂志文章
doi:10.1289/ehp.01109915
更新日期:2001-09-01 00:00:00
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journal_title:Environmental health perspectives
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更新日期:1991-05-01 00:00:00
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journal_title:Environmental health perspectives
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更新日期:2012-11-01 00:00:00
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更新日期:2013-03-01 00:00:00
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journal_title:Environmental health perspectives
pub_type: 杂志文章
doi:10.1289/ehp.7823159
更新日期:1978-04-01 00:00:00
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journal_title:Environmental health perspectives
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更新日期:1986-08-01 00:00:00
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journal_title:Environmental health perspectives
pub_type: 杂志文章
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更新日期:2011-06-01 00:00:00
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journal_title:Environmental health perspectives
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更新日期:2007-09-01 00:00:00
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journal_title:Environmental health perspectives
pub_type: 杂志文章
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更新日期:1990-06-01 00:00:00
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pub_type: 杂志文章
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更新日期:2001-05-01 00:00:00
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更新日期:2017-08-01 00:00:00