The Asthma Control Rate Achieved by Budesonide/Formoterol in Clinical Practice in China

Inclusion Criteria: 1. Clinical diagnosis of asthma at least 6 months; 2. Prescribed with budesonide/formoterol treatment at least 3 months before enrolled; 3. Has used the same maintenance dose of budesonide/formoterol for at least 4 weeks before enrolled. Exclusion Criteria: 1. Participation in any clinical study within 3 months; 2. Have COPD history/suspicious COPD; 3. ≥ 10 pack years of smoking history 4. Used any other asthma maintenance medication accompanied with budesonide/formoterol within 3 months before enrolled 5. With asthma exacerbation (defined as asthma symptom deterioration resulting oral/rectal/parenteral GCS medication or emergency room treatment or hospitalisation) within 4 weeks before enrolled