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Objectives:  The aim was to examine the use of antibiotics to treat asthma patients in U.S. emergency departments (EDs). The authors sought to investigate inappropriate antibiotic prescriptions by identifying the frequency and predictors of antibiotics prescribed for asthma exacerbations using data from two sources, the National Hospital Ambulatory Medical Care Survey (NHAMCS) and the National Emergency Department Safety Study (NEDSS).

Methods:  The authors used data from NHAMCS and NEDSS to identify the proportion of ED visits for asthma exacerbations that resulted in the prescription of an antibiotic. NHAMCS provided national data from 1993 through 2004, while NEDSS provided data from 63 primarily academic EDs from 2003 through 2006. Univariate analysis and multivariate logistic regression modeling were used to identify variables associated with antibiotic administration.

Results …