Maternal Exposure to Particulate Matter during Pregnancy and Adverse Birth Outcomes in the Republic of Korea

International Journal of Environmental Research and Public Health
Yu Jin KimChong-Woo Bae

Abstract

Air pollution has become a global concern due to its association with numerous health effects. We aimed to assess associations between birth outcomes in Korea, such as preterm births and birth weight in term infants, and particulate matter < 10 µm (PM10). Records from 1,742,183 single births in 2010⁻2013 were evaluated. Mean PM10 concentrations during pregnancy were calculated and matched to birth data by registered regions. We analyzed the frequency of birth outcomes between groups using WHO criteria for PM10 concentrations with effect sizes estimated using multivariate logistic regression. Women exposed to PM10 > 70 µg/m³ during pregnancy had a higher rate of preterm births than women exposed to PM10 ≤ 70 µg/m³ (7.4% vs. 4.7%, P < 0.001; adjusted odds ratio (aOR) 1.570; 95% confidence interval (CI): 1.487⁻1.656). The rate of low birth weight in term infants increased when women were exposed to PM10 > 70 µg/m³ (1.9% vs. 1.7%, P = 0.278), but this difference was not statistically significant (aOR 1.060, 95% CI: 0.953⁻1.178). In conclusion, PM10 exposure > 70 µg/m³ was associated with preterm births. Further studies are needed to explore the pathophysiologic mechanisms and guide policy development to prevent future adverse effec...Continue Reading

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Citations

Jun 15, 2019·International Journal of Environmental Research and Public Health·Eric Amster, Clara Lew Levy
Jul 29, 2020·International Journal of Environmental Research and Public Health·Meiman Maggie ChenSu-Er Guo
Sep 28, 2020·Environmental Research·Miatta A BuxtonKaren E Peterson

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