The roles of impulse oscillometry in diagnosis of chronic obstructive pulmonary disease
Phase 1
Recruiting
- Conditions
- The study population will be consisted of three groups: one group will be COPD group another group will be non-COPD group and the other group will be healthy control.COPD,SMOKING
- Registration Number
- TCTR20190614005
- Lead Sponsor
- Faculty of Medicine, Chiang Mai University
- Brief Summary
Not available
- Detailed Description
Not available
Recruitment & Eligibility
- Status
- Recruiting
- Sex
- All
- Target Recruitment
- 144
Inclusion Criteria
1. Suspected COPD group
-Suspected COPD subjects aged ≥ 40 years old
-No history of chronic respiratory diseases other than COPD
-Smokers or ex-smoker ≥ 10 packs-year
2. Healthy control
-Healthy subjects aged ≥ 40 years old
-No history of chronic respiratory diseases
-Non-smokers or ex-smoker < 5 packs-year
-Normal spirometry
Exclusion Criteria
The study population will be excluded from the study according to the following criteria:
-Unable to perform spirometry
-Unable to perform IOS
-Spirometry not met American Thoracic Society (ATS)/European Respiratory Society (ERS) 2005 standard
-IOS not met standard recommended by Bickel et al and ERS standard
Study & Design
- Study Type
- Observational
- Study Design
- Not specified
- Primary Outcome Measures
Name Time Method Cut off point of IOS parameter for diagnosis COPD 0 min cmH2O
- Secondary Outcome Measures
Name Time Method ROC curve of IOS parameter for diagnosis COPD 0 min percent