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.
The receiver operating characteristic curves of the opacity volume as a predictor of oxygen demand. The sensitivity, specificity, and AUC of the volume of opacity were 76.5%, 68.2%, and 0.737 in predicting increased oxygen demand (a); 50.0%, 79.5%, and 0.691 for high opacity (b); and 76.5%, 62.2%, and 0.722 for low opacity (c), respectively.
