Asthma and chronic obstructive pulmonary disease overlap syndrome
Conditions
Interventions
Sponsors
Eligibility
Inclusion criteria
Inclusion criteria: 1. Hospitalization not for exacerbation of COPD; 2. One meet following two of three criterias will be diagnosed as ACOS: (1) Very positive bronchodilator test (increase in FEV1 >15% and >400 mL); (2) Eosinophilia in sputum; (3) Personal history of asthma Minor criteria. Three secondary criterias: (1) High levels of total IgE; (2) Personal history of atopy; (3) Positive bronchodilator test on at least two occasions (increase of FEV1 >12% and >200 mL).
Exclusion criteria
Exclusion criteria: 1. Hospitalization not for exacerbation of COPD; 2. without the lung fuction data; 3. history of lung cancer.
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| mortality;standard laboratory measurements;AECOPD; | — |
Countries
China
Contacts
The Third Affiliated Hospital of Guangzhou Medical University