Finding studies
Finding studies
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Lead
Peking Union Medical College Hospital
With
Particulate matter(PM) exposure has been shown to increase the morbidity and mobility of a variety of respiratory diseases, including COPD and asthma. This study focus on the effects of PM on the pulmonary function and acute exacerbation of COPD and asthma patients in China, where PM exposure is much heavier than the United States and European countries. This study is an observational study which lasts 3 years. Primary outcome measures:Change in spirometry (FEV1) of COPD, asthma patients and healthy volunteers in response to different exposure doses of PM.
Age
18–75
Sex
ALL
Healthy volunteers
Accepted