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.
Blue indicates a direct and red an indirect (cf. legend on the right) correlation. Correlation coefficients are values dispalyed in larger font and the p-values in smaller font below.
