Consistent with Hypothesis 2, psychiatric morbidity was positively related to treatment utilization (in the case of MDD). MDD, although unrelated to severity of cocaine dependence, was associated with the receipt of cocaine dependence treatment. The difference between this finding and those of Carpenter et al. (2002), who found that substance dependence severity at treatment entry was related to less treatment utilization, may be explained in several ways. First, psychiatric morbidity and cocaine dependence severity were not related in the present findings. Second, participants were not treatment seeking. Third, the current study’s findings are retrospective, in contrast to the prospective design in Carpenter et al. (2002).
