Figure 1.
Frequency of reduced SpO2 by FEV1% predicted in 372 adult patients in general practice with a diagnosis of asthma and/or COPD.
Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.