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Outdoor Air Pollution and COPD Related Emergency Department Visits, Hospital Admissions and Mortality: A Meta-Analysis
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2 2017
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Source: COPD. 14(1):113-121
[PDF-740.62 KB]
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Alternative Title:COPD
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Description:A systematic literature review was performed to identify all peer-reviewed literature quantifying the association between short-term exposures of particulate matter <2.5 microns (PM|), nitrogen dioxide (NO|), and sulfur dioxide (SO|) and COPD-related emergency department (ED) visits, hospital admissions (HA), and mortality. These results were then pooled for each pollutant through meta-analyses with a random effects model. Subgroup meta-analyses were explored to study the effects of selected lag/averaging times and health outcomes. A total of 37 studies satisfied our inclusion criteria, contributing to a total of approximately 1,115,000 COPD-related acute events (950,000 HAs, 80,000 EDs, and 130,000 deaths) to our meta-estimates. An increase in PM| of 10 ug/m| was associated with a 2.5% (95% CI: 1.6-3.4%) increased risk of COPD-related ED and HA, an increase of 10 ug/m| in NO| was associated with a 4.2% (2.5-6.0%) increase, and an increase of 10 ug/m| in SO| was associated with a 2.1% (0.7-3.5%) increase. The strength of these pooled effect estimates, however, varied depending on the selected lag/averaging time between exposure and outcome. Similar pooled effects were estimated for each pollutant and COPD-related mortality. These results suggest an ongoing threat to the health of COPD patients from both outdoor particulates and gaseous pollutants. Ambient outdoor concentrations of PM|, NO|, and SO| were significantly and positively associated with both COPD-related morbidity and mortality.
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Pubmed ID:27564008
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Pubmed Central ID:PMC8994423
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Volume:14
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Issue:1
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