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Ambient air pollution and congenital heart defects in Lanzhou, China
Congenital heart defects are the most prevalent type of birth defects. The association of air pollution with congenital heart defects is not well understood. We investigated a cohort of 8969 singleton live births in Lanzhou, China during 2010–2012. Using inverse distance weighting, maternal exposures to particulate matter with diameters ≤10 μm (PM _10 ), nitrogen dioxide (NO _2 ), and sulfur dioxide (SO _2 ) were estimated as a combination of monitoring station levels for time spent at home and in a work location. We used logistic regression to estimate the associations, adjusting for maternal age, education, income, BMI, disease, folic acid intake and therapeutic drug use, and smoking; season of conception, fuel used for cooking and temperature. We found significant positive associations of Patent Ductus Arteriosus (PDA) with PM _10 during the 1st trimester, 2nd trimester and the entire pregnancy (OR _1st trimester = 3.96, 95% confidence interval (CI): 1.36, 11.53; OR _2nd trimester = 3.59, 95% CI: 1.57, 8.22; OR _entire pregnancy = 2.09, 95% CI: 1.21, 3.62, per interquartile range (IQR) increment for PM _10 (IQR = 71.2, 61.6, and 27.4 μ g m ^−3 , respectively)), and associations with NO _2 during 2nd trimester and the entire pregnancy (OR _2nd trimester = 1.92, 95% CI: 1.11, 3.34; OR _entire pregnancy = 2.32, 95% Cl: 1.14, 4.71, per IQR increment for NO _2 (IQR = 13.4 and 10.9 μ g m ^−3 , respectively)). The associations for congenital malformations of the great arteries and pooled cases showed consistent patterns. We also found positive associations for congenital malformations of cardiac septa with PM _10 exposures in the 2nd trimester and the entire pregnancy, and SO _2 exposures in the entire pregnancy. Results indicate a health burden from maternal exposures to air pollution, with increased risk of congenital heart defects.
Ambient air pollution and congenital heart defects in Lanzhou, China
Congenital heart defects are the most prevalent type of birth defects. The association of air pollution with congenital heart defects is not well understood. We investigated a cohort of 8969 singleton live births in Lanzhou, China during 2010–2012. Using inverse distance weighting, maternal exposures to particulate matter with diameters ≤10 μm (PM _10 ), nitrogen dioxide (NO _2 ), and sulfur dioxide (SO _2 ) were estimated as a combination of monitoring station levels for time spent at home and in a work location. We used logistic regression to estimate the associations, adjusting for maternal age, education, income, BMI, disease, folic acid intake and therapeutic drug use, and smoking; season of conception, fuel used for cooking and temperature. We found significant positive associations of Patent Ductus Arteriosus (PDA) with PM _10 during the 1st trimester, 2nd trimester and the entire pregnancy (OR _1st trimester = 3.96, 95% confidence interval (CI): 1.36, 11.53; OR _2nd trimester = 3.59, 95% CI: 1.57, 8.22; OR _entire pregnancy = 2.09, 95% CI: 1.21, 3.62, per interquartile range (IQR) increment for PM _10 (IQR = 71.2, 61.6, and 27.4 μ g m ^−3 , respectively)), and associations with NO _2 during 2nd trimester and the entire pregnancy (OR _2nd trimester = 1.92, 95% CI: 1.11, 3.34; OR _entire pregnancy = 2.32, 95% Cl: 1.14, 4.71, per IQR increment for NO _2 (IQR = 13.4 and 10.9 μ g m ^−3 , respectively)). The associations for congenital malformations of the great arteries and pooled cases showed consistent patterns. We also found positive associations for congenital malformations of cardiac septa with PM _10 exposures in the 2nd trimester and the entire pregnancy, and SO _2 exposures in the entire pregnancy. Results indicate a health burden from maternal exposures to air pollution, with increased risk of congenital heart defects.
Ambient air pollution and congenital heart defects in Lanzhou, China
Lan Jin (author) / Jie Qiu (author) / Yaqun Zhang (author) / Weitao Qiu (author) / Xiaochun He (author) / Yixuan Wang (author) / Qingmei Sun (author) / Min Li (author) / Nan Zhao (author) / Hongmei Cui (author)
2015
Article (Journal)
Electronic Resource
Unknown
Metadata by DOAJ is licensed under CC BY-SA 1.0
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