“…This recommendation is particularly salient in light of the fact that a sizable proportion of the HIV-negative men who took part in this study (41.2%) reported at least some sex while “under the influence” during the month prior to interview. Moreover, more than one-quarter of this study’s HIV-negative men (26.5%) could be classified as substance abusers based on the diagnostic criteria listed in the Diagnostic and Statistical Manual of Mental Disorders , fourth edition (see, Klein, 2011b, for more information about this). Completing drug treatment has been shown to be effective at helping reduce HIV risk practices in a variety of population groups (Booth et al, 2011; Metzger, Woody, & O’Brien, 2010), including MSM (Jaffe, Shoptaw, Stein, Reback, & Rotheram-Fuller, 2007; Shoptaw et al, 2008).…”