An official website of the United States government
Here's how you know
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.
Figure 1: Matrix of bivariate odds ratios (95% CI) between risk characteristics among men who have sex with men.
EDD=erectile dysfunction drugs. Internet casual sex=finding casual sex partners on the internet. Meth=methamphetamine. STI=sexually transmitted infection.