Long-term Effect of Steroid on Metabolic Diseases in Asthmatics

Inclusion Criteria

• •ii. At least 1 asthma diagnosis within 1 year before the first corticosteroid exposure date by asthma specialists at Ajou University Medical Center (AUMC, Suwon, South Korea) with informed consent.
• •iii. A high cumulative dose is defined as the dose of corticosteroids above the mean cumulative dose of corticosteroids prescribed during 1 year.
• •iv. The equivalent dose will use for calculating the mean cumulative dose of each inhaled corticosteroid inhaler or systemic corticosteroid prescribed.
• •v. Prescriptions within 365 days from the first prescription will be assumed to be continuous, and the cohort end date will be defined as the end of the continuous drug exposure.