AI Article Synopsis
- The study investigates the link between air pollution and asthma hospital admissions in children under 18 in Beijing from 2013 to 2016.
- Higher levels of pollutants like particulate matter, sulfur dioxide, and nitrogen dioxide were associated with increased asthma admissions, with nitrogen dioxide having the strongest impact.
- The effects varied by age and season, showing preschool children were particularly vulnerable, especially to sulfur dioxide in winter, emphasizing the need for better air quality to reduce asthma-related hospital visits.
Article Abstract
Previous studies suggested that exposure to air pollution could increase risk of asthma attacks in children. The aim of this study is to investigate the short-term effects of exposure to ambient air pollution on asthma hospital admissions in children in Beijing, a city with serious air pollution and high-quality medical care at the same time. We collected hospital admission data of asthma patients aged ≤ 18 years old from 56 hospitals from 2013 to 2016 in Beijing, China. Time-stratified case-crossover design and conditional Poisson regression were applied to explore the association between risk of asthma admission in children and the daily concentration of six air pollutants [particulate matter ≤ 2.5 μm (PM), particulate matter ≤ 10 μm (PM), sulfur dioxide (SO), nitrogen dioxide (NO), carbon monoxide (CO), and ozone (O)], adjusting for meteorological factors and other pollutants. Additionally, stratified analyses were performed by age, gender, and season. In the single-pollutant models, higher levels of PM, SO, and NO were significantly associated with increased risk of hospital admission for asthma in children. The strongest effect was observed in NO at lag06 ( = 1.25, 95%CI: 1.06-1.48), followed by SO at lag05 ( = 1.17, 95%CI: 1.05-1.31). The robustness of effects of SO and NO were shown in two-pollutant models. Stratified analyses further indicated that pre-school children (aged ≤ 6 years) were more susceptible to SO. The effects of SO were stronger in the cold season, while the effects of NO were stronger in the warm season. No significant sex-specific differences were observed. These results suggested that high levels of air pollution had an adverse effect on childhood asthma, even in a region with high-quality healthcare. Therefore, it will be significant to decrease hospital admissions for asthma in children by controlling air pollution emission and avoiding exposure to air pollution.
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| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC8718688 | PMC |
| http://dx.doi.org/10.3389/fpubh.2021.798746 | DOI Listing |
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