Prenatal exposure to PM10 and NO2 and children's neurodevelopment from birth to 24 months of age : Mothers and Children's Environmental Health (MOCEH) study
- 주제(키워드) Cognition , Environmental air pollution , Infant neurodevelopment , Nitrogen dioxide , Particulate matters , Prenatal exposure
- 등재 SCIE, SCOPUS
- 발행기관 ELSEVIER SCIENCE BV
- 발행년도 2014
- 총서유형 Journal
- URI http://www.dcollection.net/handler/ewha/000000090950
- 본문언어 영어
- Published As http://dx.doi.org/10.1016/j.scitotenv.2014.01.107
초록/요약
Introduction: Previous studies have suggested adverse effects of maternal exposure to air pollution on neurodevelopment in early childhood. Objectives: We aimed to investigate the association between prenatal exposure to particulates of less than 10 mu m in diameter (PM10) and nitrogen dioxide (NO2) and neurodevelopment in children during the first 24 months of their lives. Methods: The MOCEH study is a prospective birth cohort study in South Korea. Average exposure levels to PM10 and NO2 during the entire pregnancy were estimated using the inverse distance weighting (IDW) method. A total of 520 mother-child pairs who completed neurodevelopmental assessments using the Korean Bayley Scale of Infant Development II (K-BSID-II) more than once at ages of 6, 12 and 24 months were included. Mental developmental index (MDI) and psychomotor developmental index (PDI) from the K-BSID-II were used as outcome variables. Results: There were negative associations between maternal exposure to PM10 and MDI (beta = 2.83; p = 0.003) and PDI (beta = -3.00; p = 0.002) throughout the first 24 months of life as determined by the generalized estimating equation (GEE) model. Maternal NO2 exposure was related with impairment of psychomotor development (beta = -1.30; p = 0.05) but not with cognitive function (beta = -0.84; p = 0.20). In a multiple linear regression model, there were significant effects of prenatal air pollution exposure on MDI (PM10:beta = -4.60; p < 0.001, NO2:beta = -3.12; p < 0.001) and PDI (PM10: beta = -7.24; p < 0.001, NO2:beta = -3.01; p < 0.001) at 6 months, but no significant association was found at 12 and 24 months of age. Conclusions: The findings suggest that exposure to air pollution may result in delayed neurodevelopment in early childhood. (C) 2014 Elsevier B.V. All rights reserved.
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