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Acute exacerbation of COPD (AECOPD) is among the most frequent causes for hospital admission, causing morbidity and mortality. Infection is the most frequent cause, and studies on pollution have shown higher hospital admission and mortality with inconsistent results. The objective was to identify if there is a change in levels of particulate matter (PM) during the days leading up to the symptom onset.

international journal of chronic obstructive pulmonary disease/international journal of copd

&lt;p&gt;Effects of air pollution on acute exacerbation of chronic obstructive pulmonary disease: a descriptive retrospective study (pol-AECOPD)&lt;/p&gt;