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.
ROC curves. ROC curves determining the cut-off of DLco to predict ∆SpO2-6MWT (left) and peak AaDO2 (middle) and the cut-off of ∆SpO2-6MWT to predict peak AaDO2 (right). DLco, diffusing capacity of the lung for carbon monoxide; ∆SpO2, oxygen desaturation [(resting − nadir) SpO2]; 6MWT, 6-minute walk test; AaDO2, alveolar-to-arterial oxygen pressure difference.
