Adult asthma exacerbations and environmental triggers: a retrospective review of ED visits using an electronic medical record

摘要: Abstract Background Despite familiarity with triggers for asthma, there is little recent study on the association of emergency department (ED) presentation adult asthma exacerbation. Methods Retrospective electronic chart review patients treated in an urban teaching hospital ED chief complaint and diagnostic coding related to upper respiratory tract infection (URI) was conducted. Monthly aeroallergen data environmental conditions were obtained from a local allergen extract laboratory government sources. Data analysis performed using Newey-West time series regression modeling adjustment autocorrelation or ordinary least squares linear outcome variables visits admissions. Results There 56 747 visits, 554 1 514 URI visits. Asthma (R2 = 0.631) positively correlated tree pollen counts (correlation coefficient 0.458 [0.152-0.765]) average humidity 1.528 [0.296-2.760]). admissions 0.480) negatively temperature −0.557 [−1.052 −0.061]) when adjusting confounding by fine particulate matter. Conclusions The acute exacerbation humidity, whereas need admission associated dropping temperatures. These results reinforce vigilance during periods increased risk perhaps focused preventative strategies.