Quality Control for Chronic Obstructive Pulmonary Disease

Sixteen hospitals in Guangdong Province were randomly divided into control group and intervention group.Doctors and nurses of intervention group were trained treat chronic obstructive pulmonary disease according to the GOLD(Global InitiaTive of Chronic Obstructive Lung Disease) guidelines，while those in the control group will not receive any training from research team. Hospital patient cohort and outpatient cohort will be setted. Subjects were interviewed and received pulmonary function tests.All patients will be followed and events of acute exacerbation will be recorded.Factors that influence patient prognosis and economic-health benefits will be analyzed.

Inclusion criteria

• Patients was diagnosed as COPD according to Global Initiative for Chronic Obstructive Lung Disease (GOLD) guidelines older than 40 years old.Patients was hospitalized for AECOPD or visiting outpatient department for COPD.

• A signed and dated written informed consent is obtained prior to participation.
• Able to comply with the requirements of the protocol and be available for study visits over 1 years.

Exclusion criteria

A COPD subject will not be eligible for inclusion in this study if any of the following criteria apply:

• Known respiratory disorders, or disorders identified at screening/visit

1 (including identification on the first CT scan), other than COPD (e.g.: lung cancer, sarcoidosis, tuberculosis, lung fibrosis, cystic fibrosis)

• Having undergone lung surgery (e.g. lung reduction, lung transplant)
• Severe liver and kidney dysfunction
• Have cancer or have had cancer in the 5 years prior to study entry
• Taking part in a blinded drug study