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Table 1 Definition of severity levels based on medication use

From: Burden of asthma with elevated blood eosinophil levels

Severity level

Medications

Mild

•Low dose ICS or

•Cromolyn, LTRA, nedocromil, or theophylline

Moderate

•Low-dose ICS + LABA OR Medium-dose ICS OR Medium-dose ICS + LABA, or

•Low-dose ICS + either LeukoTriene Receptor Antagonist (LTRA),Theophylline, or Zileuton, or

•Medium-dose ICS + either LTRA, Theophylline, or Zileuton

Severe

•High-dose ICS + LABA OR High-dose ICS + LABA + oral corticosteroid,or

•High-dose ICS + LABA + _Omalizumab, or High-dose ICS + LABA + oral corticosteroid + Omalizumab