Disease Areas:
COPDDevice Types:
SpirotracThis case–control study examined the effects of environmental exposure to PM2.5, temperature, and relative humidity on the risk of COPD in patients with newly diagnosed COPD (n=995) and control subjects (n=833). At the time of entry into the study, all participants underwent lung function testing (FEV1, FVC, FEV1/FVC ratio), with data analyzed using Vitalograph Spirotrac V software.