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Severe and non-severe asthma in the community: A large electronic database analysis.

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BACKGROUND A large electronic database analysis was conducted in a community of 351,799 people, ages 20-70 years to determine the prevalence and clinical characteristics of severe asthma, according to 2014… Click to show full abstract

BACKGROUND A large electronic database analysis was conducted in a community of 351,799 people, ages 20-70 years to determine the prevalence and clinical characteristics of severe asthma, according to 2014 international guidelines and healthcare utilization. METHODS Severe asthmatics were grouped into controlled severe-asthma and uncontrolled severe-asthma and additional subgroups of uncontrolled severe asthma on the basis of medications dispensed. Non-asthmatic population at the same ages served as controls. RESULTS A total of 19,991 (5.68%) were diagnosed as asthmatic, of which 4.65% had severe asthma. Of these, one-third was uncontrolled severe-asthma. Controlled severe-asthma group was similar to non-severe asthma and non-asthmatics in the rate of emergency room visits (21.5%, 22%, and 20%, respectively) and to all cause hospitalizations (7.4%, 7.4%, and 6.4%, respectively). Uncontrolled severe-asthmatics had significantly more hospitalizations (RR = 2.9) than controlled severe-asthmatics. Only 19.2% of uncontrolled-severe asthmatics had IgE testing and 3.6% were dispensed omalizumab. CONCLUSIONS The prevalence of severe asthma is slightly less than 5% of all asthmatics. Controlling severe asthma is crucial to reducing healthcare utilization. A simple electronic database analysis, based on dispensed medications, can help healthcare providers identify subgroups of uncontrolled severe asthmatics that require focused efforts. CLINICAL TRIAL REGISTRATION NCT01961258. Ethics Committee approval: 032/2013C.

Keywords: severe asthma; electronic database; uncontrolled severe; severe asthmatics; asthma; database analysis

Journal Title: Respiratory medicine
Year Published: 2017

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