Rates of testing for HIV in the presence of serodiscordant UAI among HIV-negative gay men in committed relationships.

We examined testing rates for HIV-negative men (N = 752) from a sample of gay male couples. Approximately half (52 %) tested in the past year. Among men who had engaged in sexual risk behavior in the past 3 months, 27 % tested within that period and 65 % within the past year. For men in concordant relationships these rates were 25 and 60 %, for men in serodiscordant relationships they were 34 and 72 %. MSM in primary relationships are testing at lower rates than the general MSM population, even after potential exposure to HIV. Testing and prevention messages for MSM should factor in relationship status.