“…Street youth who used marijuana in a recent sexual encounter were less likely to use condoms, but those who used crack were more likely to use condoms (Bailey, Camlin, and Ennett, 1998). Marijuana use with sex was also associated with decreased condom use at a recent sexual encounter among adolescents in detention (Kingree and Betz, 2003;Kingree, Braithwaite, and Woodring, 2000;Kingree and Phan, 2002) and among MSM (Clutterbuck et al, 2001), but was unrelated to condom use among young heterosexual adults (Brodbeck, Matter, and Moggi, 2006). In a sample of female drug users, condom use at a recent sexual encounter was not significantly associated with use of alcohol, injection drugs, crack, or noninjection drugs before sex (Tortu et al, 2000), while a study of drug injectors suggested decreased condom use when both sexual partners were using crack with sex (Friedman et al, 1999).…”