respiratory disease
Conditions
Interventions
Case series:Nil
Sponsors
The First Affiliated Hospital of Guangzhou Medical University
Eligibility
Sex/Gender
All
Age
40 Years to 80 Years
Inclusion criteria
Inclusion criteria: The inclusion criteria were as follows: aged 40 to 80 years, evidence of bronchial obstruction (a ratio of forced expiratory volume in the first second (FEV1) to forced vital capacity (FVC) of less than 0.70) measured via post-bronchodilator spirometry, and current exposure to biomass smoke (at least ten years of daily biomass smoke exposure) but without smoking or a current smoker (at least ten pack-years of smoking) but without exposure to biomass smoke. Participants were exacerbation-free for at least 1 month and had not been treated with corticosteroids for at least 3 months prior to the start of the study.
Exclusion criteria
Exclusion criteria: The exclusion criteria were as follows: a diagnosis of any of the following diseases: active tuberculosis, asthma, obvious bronchiectasis, cystic fibrosis, interstitial lung disease, pulmonary thromboembolic disease; a malignant tumor; a history of thoracotomy with pulmonary resection; uncontrolled or serious diseases; or other symptoms that could potentially affect the spirometry test results.
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Pulmonary Function;emphysema index;Air trapping;Pathological Characteristics; | — |
Countries
China
Contacts
Public ContactPixin Ran
First Affiliated Hospital of Guangzhou Medical University
Outcome results
None listed