4. Receiver operating characteristic (ROC) curve of predictive model from validation set (n=474). AUC=0.779, 95% CI=0.724−0.833. AUC, area under the curve; 95% CI, 95% confidence interval.
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.