Risk factors for exacerbations/poor control
| Emergency visit, admission, oral steroid course during previous year Low FEV1 ACT score <19 Low socioeconomic status, low income Comorbidities (rhinitis, sinusitis, food allergy, reflux) Severe asthma, high-dose medications Smoking or exhaled smoke exposure Reduced symptom perception Reduced adherence Persistent eosinophilic airways inflammation |
Data from [10, 34–40]. FEV1: forced expiratory volume in 1 s; ACT: Asthma Control Test.