HIV prevalence among men who have sex with men– National HIV Behavioral Surveillance System, 20 Cities, U.S., 2008 and 2011.

aConfidence interval.bAdjusted prevalence ratio; Model includes: all variables shown & their interactions with year, venue type & interaction with year, outness, & sexual identity as fixed effects. Referent = 2008.cIncludes MSM reporting American Indian or Alaska Native, Asian, Native Hawaiian or Pacific Islander, other race, or multiple races.