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.