The study involved 656 subjects, aged 4 to 71, who were either self-referred or referred by a law enforcement official or by child protective services. Subjects were individually interviewed for a minimum of 90 minutes by a clinical psychologist with a specialty in paraphilia. The article reports comparative data on age, marital status, educational level, psychological histories, violence, life stressors, sexual behavior and sexual health. The larger study focused on psychological, medical, urological, gynecological, drug, law enforcement, homicidal and suicidal histories, and sexual difficulties. Offenders, victims, people in both categories, and persons in neither were four groups analyzed. The groups differed significantly on 13 life stressors. and also differed on several factors regarding their sexual histories. Tables, references, notes