Testosterone, sexual offense recidivism and treatment effect among adult male sexual offenders

McKay, Alexander
March 2005
Canadian Journal of Human Sexuality;2005, Vol. 14 Issue 1/2, p43
Academic Journal
The article discusses a study on testosterone, sexual offense recidivism, and treatment effect among adult male sexual offenders which appeared in the journal, Sexual Abuse: A Journal of Research and Treatment. There is well established evidence that the hormone testosterone, with its active metabolite dihydrotestosterone, influences both aggression and sex drive in human males. The purpose of the study was to examine the relationship between serum testosterone and sexual violence in a sample of adult male sex offenders attending an in-hospital treatment program. The sample for the study consisted of 501 adult male sex offenders voluntarily admitted to the Phoenix Program, an inpatient sex offender treatment program in Edmonton, Alberta. The authors suggest that the findings indicate that testosterone levels are not just associated with aggression and sex drive as separate entities but also to sexual aggression specifically. When the analyses were conducted separately for those who completed the program and those who did not, an important finding emerged. That is, for those participants who completed the program, higher levels of testosterone was no longer predictive of the likelihood of sexually reoffending. In other words, the intensive group therapy provided by the program appears able to intercede in the influence of testosterone on sexually deviant behavior.


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