Effects of COPD Standardized Management on COPD Exacerbation

In standardized management group, patients will receive a multifaceted and integrated disease management that follows recommendations in GOLD 2020 and China Guideline on COPD care. It contains the components below. 1. Maintenance therapy after initial treatment. In this study, patients' initial therapy is the prescribed inhalers at baseline. Maintenance therapy is the medications (LABA, LAMA, or ICS) prescribed for regular or long-term use after initial therapy. 2. Long-term follow-up and routine monitoring of symptoms measured by CAT, mMRC and SGRQ. 3. Regular pulmonary function testing for lung function monitoring 4. Strengthened COPD education 5. Behavioral modification, eg. encouragement of influenza/pneumococcal vaccination, providing smoking cessation counseling and pulmonary rehabilitation.

Patients will undergo usual care according to current clinical practice in study sites. Usual care is the routine care provided to patients. Prescription and dispense of medicine for COPD initial and maintenance therapy will be at the discretion of doctors.