Abstract:
:Preterm premature rupture of membranes (PROM) is the leading identifiable predisposing factor for preterm birth. Although maternal exposure to air pollution can potentially have an impact on preterm PROM, there is no available evidence on such an impact. In this study, based on 5,555 singleton births occurring in Barcelona, Spain (2002-2005), we investigated the associations of maternal exposure to nitrogen dioxide, nitrogen oxides, and particulate matter with aerodynamic diameters of ≤2.5 µm (PM2.5), 2.5 µm-10 µm, and ≤10 µm and PM2.5 light absorption with preterm PROM and gestational age at the rupture of membranes (ROM). We utilized temporally adjusted land-use regression models to predict pollutant levels at each subject's home address during each week of her pregnancy. We conducted matched (according to the length of exposure) case-control analyses to estimate the preterm PROM risk associated with 1 interquartile-range increase in exposure levels during the entire pregnancy and during the last 3 months prior to ROM. We found an increase in preterm PROM risk of up to 50% (95% confidence interval: 4, 116) and a 1.3-day (95% confidence interval: -1.9, -0.6) reduction in gestational age at ROM associated with PM2.5 absorbance, nitrogen dioxide exposure, and nitrogen oxide exposure during the entire pregnancy and the last 3 months prior to ROM.
journal_name
Am J Epidemioljournal_title
American journal of epidemiologyauthors
Dadvand P,Basagaña X,Figueras F,Martinez D,Beelen R,Cirach M,de Nazelle A,Hoek G,Ostro B,Nieuwenhuijsen MJdoi
10.1093/aje/kwt240subject
Has Abstractpub_date
2014-01-15 00:00:00pages
200-7issue
2eissn
0002-9262issn
1476-6256pii
kwt240journal_volume
179pub_type
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