Dataset Information

Risk factors of asthma exacerbation based on asthma severity: a nationwide population-based observational study in South Korea.

ABSTRACT:

Objectives

Asthma exacerbation, associated with many risks factors, can reflect management failure. However, little is known about how risk factors are associated with exacerbation, according to asthma severity. We aimed to investigate differences in risk factors in patients with different asthma severity and evaluate whether risk factors differed between frequent exacerbators and patients with single exacerbation.

Design

Nationwide population-based observational study.

Setting

Korean National Sample Cohort database.

Participants

We included 22 130 adults with asthma diagnoses more than twice (ICD-10 (International Classification of Diseases, Tenth revision) codes J45 and J46) and one prescription for asthma medication from 2010 to 2011.