“…Among the 12 studies examining prevalence of anxiety disorders through pre-DSM-IV criteria, 7 concerned opiatedependent subjects in methadone treatment (Abbott, Weller & Walker, 1994;Brooner et al, 1997;Callaly, Trauer, Munro, & Whelan, 2001;Magura, Kang, Rosenblum, Handelsman, & Foote, 1998;Mason et al, 1998;Milby et al, 1996;Musselman & Kell, 1995). Three studies recruited subjects in treatment including detoxification (Mirin, Weiss, Griffin, & Michael, 1991), detoxification or methadone programs (Van Limbeek, Wouters, Kaplan, Geerlings, & Van Alem, 1992), and methadone or naltrexone programs (Pozzi, Bacigalupi, & Tempesta, 1997).…”