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.
Receiver operating characteristic curve for final model
The receiver operating characteristic curve with labeled Youden’s Index (best trade-off of sensitivity and specificity), including corresponding values for: Se (sensitivity), Sp (specificity), PPV (positive predictive value), NPV (negative predictive value), LR+ (positive likelihood ratio), LR− (negative likelihood ratio). This figure also displays the distribution of events in a histogram at top.
