Objective: The aim of this study is to provide high quality data and give a comprehensive overview of characteristics, clinical features, management and prognosis during exacerbations and stable periods among inpatients with acute exacerbation of chronic obstructive pulmonary disease in real-world China.~Eligibility Criteria: Details are shown in the Eligibility Criteria part.~Procedures and Measurements: At admission, each eligible subject will be given an in-depth interview to collect the demographics, smoking history, medical history, management of disease during stable period, etc. During hospitalization, treatment and auxiliary examination results including laboratory and lung function tests will be recorded if available. To ensure the quality and uniformity of spirometry data, training on performing spirometry will be provided to each study site by professional doctors from central site. At discharge, physicians will record the discharge diagnoses and clinical outcomes including death, intensive care unit admission, chronic obstructive pulmonary disease assessment test (CAT) score and total direct cost for each participant. During follow-ups, clinical outcomes including death and exacerbation events, change of medication, new-developed complications, auxiliary examination results, and economic burden will be collected.
The aim of this study is to provide high quality data and give a comprehensive overview of characteristics, clinical features, management and prognosis during exacerbations and stable periods among inpatients with acute exacerbation of chronic obstructive pulmonary disease in real-world China.