SABA overuse analyses were of a descriptive nature. The associations between SABA overuse and physician specialty, GINA step (based on prescribed asthma medications), age, and sex were estimated using multivariable regression. Co-diagnoses and co-therapies were also included in the model. ICS/LABA use was not included in the logistic regression because the proportion of patients with ICS/LABA use was a part of the GINA definition, and 95% of patients at GINA steps 3–5 were treated with ICS/LABA. P values < 0.05 were considered statistically significant. All analyses were carried out using SAS version 9.4 (SAS Institute, Cary, NC).

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