About this trial
This study is a multicenter cross-sectional study design aimed at screening risk factors for the combination of disease and syndrome in high-risk individuals with chronic obstructive pulmonary disease (COPD).
Eligibility criteria
Qualifiers
According to the Diagnosis and Treatment Guidelines for Chronic Obstructive Pulmonary Disease (Revised in 2021), a multi-stage cluster random sampling method was used to select individuals from representative administrative villages with a history of chronic cough or sputum production, breathing difficulties, recurrent lower respiratory tract infections, and/or exposure to potential risk factors for chronic obstructive pulmonary disease.
The investigators agreed to participate in this clinical study by voluntarily signing an informed consent form.
Disqualifiers
Patients who are delirious, have impaired consciousness, dementia, various psychiatric disorders, etc., and cannot be accurately informed of their basic physical condition.
Patients who, in the opinion of the investigator, are not suitable for participation in this study.
Trial design
Treatments tested in this trial
- questionnaire survey