A study of 200 street prostitutes documented a high prevalence of alcohol and drug abuse in their family of origin, during the drift into prostitution and as part of prostitution. Additionally, the study documented a high prevalence of substance abuse among the child molesters and rapists of the subjects. The existence of a relationship between substance abuse and prostitution in and of itself does not imply causality. It is not clear whether substance abuse is one of the factors that pushed these women into prostitution (as noted earlier, 55% of the subjects reported being addicted prior to their prostitution involvement) or whether it was prostitution that caused their drug involvement (30% became addicted following and 15% concurrently with their prostitution involvement). Most likely, both prostitution and substance abuse are the behavioral translations of these women's endless cycles of victimization and severely disturbed backgrounds, as well as an expression of the self-destructive pull, the sense of hopelessness, helplessness, negative self-concept and psychological paralysis reported by almost every subject in the study.