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 operator curve. Study estimates are reported by individual circles, with the size of circle denoting weighting. Summary point indicates summary sensitivity and specificity. HSROC = hierarchical summary receiver-operating characteristic.
