All available EMRs were searched to document the details of any type or combination of airway directed inhaled pharmacotherapy prescribed, more specifically—SABA (salbutamol); SAMA (ipratropium); LABA (formaterol, indacaterol, olodaterol, salmeterol, vilanterol); LAMA (aclidinium, glycopyronium, tiotropium, umeclidinium) and ICS (beclomethasone, budesonide, fluticasone). If the patients were identified to have been prescribed multiple/change in similar class of inhaled pharmacotherapy during the study period, the most recent/last prescribed type of therapy was included in the analysis. Patients inhaled pharmacotherapy use was defined as: