Climate extremes and the length of gestation
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- dc.contributor.author Dadvand, Payamca
- dc.contributor.author Basagaña Flores, Xavierca
- dc.contributor.author Sartini, Claudioca
- dc.contributor.author Figueras, Francescca
- dc.contributor.author Vrijheid, Martineca
- dc.contributor.author De Nazelle, Audreyca
- dc.contributor.author Sunyer Deu, Jordica
- dc.contributor.author Nieuwenhuijsen, Mark J.ca
- dc.date.accessioned 2015-04-08T10:14:54Z
- dc.date.available 2015-04-08T10:14:54Z
- dc.date.issued 2011ca
- dc.description.abstract Background: Although future climate is predicted to have more extreme heat conditions, the available evidence on the impact of these conditions on pregnancy length is very scarce and inconclusive. Objectives: We investigated the impact of maternal short-term exposure to extreme ambient heat on the length of pregnancy. Methods: This study was based on a cohort of births that occurred in a major university hospital in Barcelona during 2001–2005. Three indicators of extreme heat conditions based on 1-day exposure to an unusually high heat–humidity index were applied. Each mother was assigned the measures made by the meteorological station closest to maternal residential postcodes. A two-stage analysis was developed to quantify the change in pregnancy length after maternal exposure to extreme heat conditions adjusted for a range of covariates. The second step was repeated for lags 0 (delivery date) to 6 days. Results: We included data from 7,585 pregnant women in our analysis. We estimated a 5-day reduction in average gestational age at delivery after an unusually high heat–humidity index on the day before delivery. Conclusion: Extreme heat was associated with a reduction in the average gestational age of children delivered the next day, suggesting an immediate effect of this exposure on pregnant women. Further studies are required to confirm our findings in different settings.en
- dc.description.sponsorship P.D. is funded by a Juan de la Cierva fellowship (JCI-2011-09937) from the Spanish Ministry of Science and Innovationen
- dc.format.mimetype application/pdfca
- dc.identifier.citation Dadvand P, Basagana X, Sartini C, Figueras F, Vrijheid M, de Nazelle A et al. Climate extremes and the length of gestation. Environmental Health Perspectives. 2011;119(10):1449-53. DOI: 10.1289/ehp.1003241ca
- dc.identifier.doi http://dx.doi.org/10.1289/ehp.1003241
- dc.identifier.issn 0091-6765ca
- dc.identifier.uri http://hdl.handle.net/10230/23356
- dc.language.iso engca
- dc.publisher National Institute of Environmental Health Sciences (NIEHS)ca
- dc.relation.ispartof Environmental Health Perspectives. 2011;119(10):1449-53
- dc.relation.projectID info:eu-repo/grantAgreement/ES/3PN/JCI2011-09937
- dc.rights Reproduced with permission from Environmental Health Perspectivesca
- dc.rights.accessRights info:eu-repo/semantics/openAccessca
- dc.subject.keyword Climateen
- dc.subject.keyword Climate changeen
- dc.subject.keyword Gestational ageen
- dc.subject.keyword Global warmingen
- dc.subject.keyword Hot temperatureen
- dc.subject.keyword Perinatal mortalityen
- dc.subject.keyword Pregnancy outcomeen
- dc.subject.keyword Preterm birthen
- dc.subject.other Infeccions respiratòries en els infantsca
- dc.subject.other Salut ambientalca
- dc.subject.other Contaminació -- Aspectes ambientalsca
- dc.title Climate extremes and the length of gestationen
- dc.type info:eu-repo/semantics/articleca
- dc.type.version info:eu-repo/semantics/publishedVersionca