RT Journal Article SR Electronic T1 Use of short-acting ß2-agonists in patients with adult-onset asthma during 12-years JF European Respiratory Journal JO Eur Respir J FD European Respiratory Society SP PA3395 DO 10.1183/13993003.congress-2021.PA3395 VO 58 IS suppl 65 A1 Vähätalo, Iida A1 Kankaanranta, Hannu A1 Tuomisto, Leena E A1 Niemelä, Onni A1 Lehtimäki, Lauri A1 Ilmarinen, Pinja YR 2021 UL http://erj.ersjournals.com/content/58/suppl_65/PA3395.abstract AB Background: Short-term studies have associated high use of short-acting β2-agonists (SABA) with increased risk of exacerbations, emergency visits and asthma-related costs. However, no studies exist on long-term SABA use, adherence to inhaled corticosteroids (ICS) and disease control.Aims and objectives: To evaluate the relation of SABA and ICS usages during 12 years and whether high SABA use exists in patients with new-onset adult asthma.Methods: In Seinäjoki Adult Asthma Study (SAAS) a total of 203 patients with adult-onset asthma were followed for 12 years. Information on dispensed SABA and ICS during the 12 years were obtained from the Finnish Social Insurance Institution. High SABA use was defined as ≥36 canisters in 12 years corresponding to on average ≥3 dispensed canisters per year.Results: Patients with adult-onset asthma dispensed median 6 canisters (interquartile range 3-16) of SABA and 48 (18-67) canisters of ICS during 12 years, corresponding to 1 (1-4) and 11 (5-16) puffs/week, respectively. Only 21 (10%) of the patients used high amounts of SABA during the 12-year follow-up period. Obesity (BMI ≥30) and higher AQ20 symptom scores at baseline predicted higher SABA use during the follow-up (IRR 1.53 (1.01-2.3) and 1.04 (1.0-1.08), respectively). High SABA users had higher 12-year adherence to ICS, higher number of blood neutrophils and comorbidities and used more oral corticosteroid and antibiotic courses vs. those using less SABA.Conclusions: High use of SABA was rare in patients with confirmed adult-onset asthma. However, as high SABA use indicated more severe asthma, the patients should be recognized in clinical practice. Weight loss should be prioritized shortly after asthma diagnosis.FootnotesCite this article as: European Respiratory Journal 2021; 58: Suppl. 65, PA3395.This abstract was presented at the 2021 ERS International Congress, in session “Prediction of exacerbations in patients with COPD”.This is an ERS International Congress abstract. No full-text version is available. Further material to accompany this abstract may be available at www.ers-education.org (ERS member access only).