Abstract:
BACKGROUND:A growing body of evidence indicates a relationship between household indoor air pollution from cooking fires and adverse neonatal outcomes, such as low birth weight (LBW), in resource-poor countries. OBJECTIVE:We examined the effect of reduced wood smoke exposure in pregnancy on LBW of Guatemalan infants in RESPIRE (Randomized Exposure Study of Pollution Indoors and Respiratory Effects). METHODS:Pregnant women (n = 266) either received a chimney stove (intervention) or continued to cook over an open fire (control). Between October 2002 and December 2004 we weighed 174 eligible infants (69 to mothers who used a chimney stove and 105 to mothers who used an open fire during pregnancy) within 48 hr of birth. Multivariate linear regression and adjusted odds ratios (ORs) were used to estimate differences in birth weight and LBW (< 2,500 g) associated with chimney-stove versus open-fire use during pregnancy. RESULTS:Pregnant women using chimney stoves had a 39% reduction in mean exposure to carbon monoxide compared with those using open fires. LBW prevalence was high at 22.4%. On average, infants born to mothers who used a stove weighed 89 g more [95% confidence interval (CI), -27 to 204 g] than infants whose mothers used open fires after adjusting for maternal height, diastolic blood pressure, gravidity, and season of birth. The adjusted OR for LBW was 0.74 (95% CI, 0.33-1.66) among infants of stove users compared with open-fire users. Average birth weight was 296 g higher (95% CI, 109-482 g) in infants born during the cold season (after harvest) than in other infants; this unanticipated finding may reflect the role of maternal nutrition on birth weight in an impoverished region. CONCLUSIONS:A chimney stove reduced wood smoke exposures and was associated with reduced LBW occurrence. Although not statistically significant, the estimated effect was consistent with previous studies.
journal_name
Environ Health Perspectjournal_title
Environmental health perspectivesauthors
Thompson LM,Bruce N,Eskenazi B,Diaz A,Pope D,Smith KRdoi
10.1289/ehp.1002928subject
Has Abstractpub_date
2011-10-01 00:00:00pages
1489-94issue
10eissn
0091-6765issn
1552-9924journal_volume
119pub_type
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journal_title:Environmental health perspectives
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journal_title:Environmental health perspectives
pub_type: 杂志文章,评审
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pub_type: 杂志文章
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journal_title:Environmental health perspectives
pub_type: 杂志文章
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journal_title:Environmental health perspectives
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journal_title:Environmental health perspectives
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journal_title:Environmental health perspectives
pub_type: 杂志文章,评审
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更新日期:1996-10-01 00:00:00
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journal_title:Environmental health perspectives
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journal_title:Environmental health perspectives
pub_type: 杂志文章
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更新日期:2000-11-01 00:00:00
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journal_title:Environmental health perspectives
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journal_title:Environmental health perspectives
pub_type: 杂志文章
doi:10.1289/ehp.96104858
更新日期:1996-08-01 00:00:00
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journal_title:Environmental health perspectives
pub_type: 杂志文章
doi:10.1289/ehp.95103s113
更新日期:1995-02-01 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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更新日期:2011-06-01 00:00:00
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pub_type: 杂志文章
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journal_title:Environmental health perspectives
pub_type: 杂志文章
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更新日期:1997-06-01 00:00:00
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journal_title:Environmental health perspectives
pub_type: 杂志文章,评审
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更新日期:1996-04-01 00:00:00
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journal_title:Environmental health perspectives
pub_type: 杂志文章,评审
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更新日期:1993-04-01 00:00:00
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pub_type: 杂志文章,评审
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更新日期:2014-11-01 00:00:00
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journal_title:Environmental health perspectives
pub_type: 杂志文章
doi:10.1289/ehp.793167
更新日期:1979-08-01 00:00:00
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journal_title:Environmental health perspectives
pub_type: 杂志文章,评审
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更新日期:1995-09-01 00:00:00
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journal_title:Environmental health perspectives
pub_type: 杂志文章
doi:10.1289/ehp.929777
更新日期:1992-07-01 00:00:00