As the respiratory viral season enters into fill swing, children with underlying asthma are at an increased risk for exacerbation and hospitalization. Researchers from University of Texas Southwestern in Dallas examined a large cohort of hospitalized children with asthma exacerbation to assess for factors associated with length of stay (LOS) in this population.

This was a retrospective cohort study of patients aged 2 to 17 years discharged with a primary diagnosis of asthma in 2011. Using the Public Health Information System database of 42 contributing hospitals, demographic data, time of year of admission, and medical comorbidities were examined for association with hospital LOS. In total, 25 900 children with a discharge diagnosis of asthma were identified in the cohort. Multivariate logistic regression was used to examine the association between multiple variables and LOS, after adjusting for severity of illness.

In 25 900 children included for analysis, the mean LOS was...

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