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Impact of air pollution on low birth weight in Spain: An approach to a National Level Study.

Abstract：

BACKGROUND:According to the WHO, low birth weight (<2500 gr) is a primary maternal health indicator as the cause of multiple morbi-mortality in the short and long-term. It is known that air pollution from road traffic (PM10, NO2) and O3 have an important impact on low birth weight (LBW), but there are few studies of this topic in Spain. The objective of this study is to determine the possible exposure windows in the gestational period in which there is greater susceptibility to urban air pollution and to quantify the relative risks (RR) and population attributable risks (PAR) of low birth weight associated with pollutant concentrations in Spain. METHODS:We calculated the weekly average births with low birth weight (ICD-10: P07.0-P07.1) for each Spanish province for the period 2001-2009, using the average weekly concentrations of PM10, NO2 and O3, measured in the capital cities of the provinces. The estimation of RR and PAR were carried out using generalized linear models with link Poisson, controlling for the trend, seasonality and auto-regressive character of the series and for the influence of temperature during periods of heat waves and/or cold. Finally, a meta-analysis was used to estimate the global RR and PAR based on the RR obtained for each of the provinces. RESULTS:The RR for the whole of Spain is 1.104 (CI95%: 1.072, 1.138) for the association between LBW and PM10, and 1.091 (CI95%: 1.059, 1.124) for the association between NO2 and LBW. Our results suggest that 5% of low birth weight births in the case of PM10 and 8% in the case of NO2 could have been avoided with a reduction of 10 μg/m3 in the concentrations of these pollutants. CONCLUSIONS:The impact of the results obtained- with 6105 cases attributable to PM10 and up to 9385 cases attributable to NO2 in a period of 9 study years- suggest the need to design structural and awareness public health measures to reduce air pollution in Spain.

journal_name

Environ Res

journal_title

Environmental research

authors

Arroyo V,Díaz J,Salvador P,Linares C

doi

10.1016/j.envres.2019.01.030

subject

Has Abstract

pub_date

2019-04-01 00:00:00

pages

69-79

eissn

0013-9351

issn

1096-0953

pii

S0013-9351(19)30030-1

journal_volume

171

pub_type

杂志文章

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Impact of air pollution on low birth weight in Spain: An approach to a National Level Study.