Last data update: Jul 01, 2024. (Total: 47134 publications since 2009)
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Query Trace: Connor EM [original query] |
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The association between air pollution and childhood asthma: United States, 2010-2015
Connor EM , Zablotsky B . J Asthma 2021 59 (10) 1-16 Objective: The current population-based study examines the association between county-level ambient air pollution and childhood asthma.Methods: Data from the nationally representative 2010-2015 National Health Interview Survey were linked to nationwide fine particulate matter (PM(2.5)) air pollution data at the county-level from the National Environmental Public Health Tracking Network which utilizes air quality monitoring stations and modeled PM(2.5) measurements (Downscaler model data) and adjusted by county-level socioeconomic characteristics data from the 2010-2015 American Community Survey. Multilevel modeling techniques were used to assess the association between PM(2.5) annual concentrations (quartiles <8.11, 8.11-9.50, 9.51-10.59, ≥ 10.60 µg/m(3)) and current childhood asthma along with two asthma outcomes (episode in the past year, emergency room (ER) visit due to asthma).Results: From 2010-2015, there were significant declines in PM(2.5) concentrations and asthma outcomes. In unadjusted models, children living in areas with higher PM(2.5) concentrations were more likely to have current asthma, ≥1 asthma episode in the past year, and ≥1 ER visit due to asthma compared with children living in areas with the lowest quartile (< 8.11 µg/m(3)). After adjusting for characteristics at the county, geographic, and child and family-level, significant associations remained for asthma episode, and ER visit among children living in areas with PM(2.5) annual concentrations between 9.51-10.59 µg/m(3) (3rd quartile) compared with children living in areas with the lowest quartile.Conclusions: This study adds to the limited literature by incorporating nationally representative county-, child-, and family-level data to provide a multi-level analysis of the associations between air pollution and childhood asthma in the U.S. |
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