Short-acting Β2-Agonists (SABA) Overuse in Asthma and Patients' Perceptions for This Behavior.
Respiratory Medicine(2024)
Abstract
Background Short-acting β2-agonists (SABA) overuse is associated with poor asthma control. The Global Initiative for Asthma (GINA) 2019-updated strategy report has therefore taken a paradigm shift in reliever therapy recommendations. Objectives (I) To investigate the status of SABA overuse and medication dispensing patters in asthma in the Netherlands (II) validate dispensing data for SABA overuse identification and (III) understand patients’ perspectives towards this SABA-taking behavior to inform future improvement strategies. Methods An annually repeated cross-sectional study was conducted from 2017 to 2021 using pharmacy dispensing data in a real-world setting, including asthma patients aged 18–45 with ≥1 inhaler. A following qualitative study was performed in identified SABA overusing patients with a questionnaire and semi-structured interviews, supported by theoretical frameworks. Results Dispensing data was available from 87 % of all community pharmacies (n = 1994) in 2017 and 95 % (n = 2005) in 2021. SABA overuse prevalence was constant for the five study-years with 20.6 % (±0.5 %). Increased ICS-formoterol and decreased SABA dispenses were observed in starters of inhalation therapy in 2021. 53 asthma patients completed the questionnaire of whom 43 patients confirmed SABA overuse, generating a positive predictive value of 81 %. Key behavioral drivers covered 7 themes regarding capability (knowledge; skills; memory, attention and decision process) motivation (emotion; beliefs about-capabilities; consequences) and opportunity (environmental context). Conclusion SABA overuse remains in one-fifth of asthma patients across the Netherlands, requiring careful attention from healthcare professionals. Dispensing data is a valid measure for SABA overuse in a clinical setting, facilitating patient selection. To meet patients’ varied supporting needs, integration of tailored behavioral interventions is essential.
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Key words
Asthma,Short-acting β2-agonists (SABA),Reliever therapy,Pharmacy dispensing data,Self-management,Primary care
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