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Population-attributable risk of low birthweight related to PM10 pollution in seven Korean cities

Population-attributable risk of low birthweight related to PM10 pollution in seven Korean cities
Seo J.-H.Leem J.-H.Ha E.-H.Kim O.-J.Kim B.-M.Lee J.-Y.Park H.-S.Kim H.-C.Hong Y.-C.Kim Y.-J.
Ewha Authors
하은희scopus; 김영주scopus; 박혜숙scopus; 김병미scopus
Issue Date
Journal Title
Paediatric and Perinatal Epidemiology
0269-5022JCR Link
vol. 24, no. 2, pp. 140 - 148
To understand the preventable fraction of low birthweight (LBW) deliveries due to maternal exposure to air pollution during pregnancy in Korea, it is important to quantify the population-attributable risk (PAR). Thus, we investigated the association between maternal exposure to air pollution during pregnancy and LBW, and calculated the PAR for air pollution and LBW in seven Korean cities. We used birth records from the Korean National Birth Register for 2004. A geographic information system and kriging methods were used to construct exposure models. Associations between air pollution and LBW were evaluated using univariable and multivariable logistic regression, and the PAR for LBW due to air pollution was calculated. Of 177 660 full-term singleton births, 1.4% were LBW. When only spatial variation of air pollution was considered in each city, the adjusted odds ratios unit of particulate matter <10 μm in diameter (PM10) for LBW were 1.08 95% confidence interval CI 0.99, 1.18 in Seoul, 1.24 95% CI 1.02, 1.52 in Pusan, 1.19 95% CI 1.04, 1.37 in Daegu, 1.12 95% CI 0.98, 1.28 in Incheon, 1.22 95% CI 0.98, 1.52 in Kwangju, 1.05 95% CI 1.00, 1.11 in Daejeon and 1.19 95% CI 1.03, 1.38 in Ulsan. The PARs for LBW attributable to maternal PM10 exposure during pregnancy were 7%, 19%, 16%, 11%, 18%, 5% and 16% respectively. Because a large proportion of pregnant women in Korea are exposed to PM10 - which is associated with LBW - a substantial proportion of LBW could be prevented in Korea if air pollution was reduced. © 2010 Blackwell Publishing Ltd.
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