“…Three studies showed decreasing frequencies of prostitution (Bellis, 1993;Meandzija et al, 1994;Metzger et al, 1993), and two showed lower numbers of sex partners (Longshore et al, 1994;Metzger et al, 1993). In contrast, it appears that MMT has little effect on condom use rates, as two studies have shown similarly low rates of condom use for injection drug users in treatment and those out of treatment (King et al, 1994;Metzger et al, 1993). Despite the disagreement of some studies, the preponderance of evidence supports the view that MMT can reduce HIV exposure by decreasing some sexual risk behaviors.…”