The Role of Motivation in Predicting Addiction Treatment Entry Among Offenders With Substance Use Disorders Under Probation Supervision

Many offenders with a substance use disorder (SUD) do not enter addiction treatment. The aim of this study was to examine predictors of addiction treatment entry and to get more insight in the predictive value of treatment motivation. A total of 83 male offenders with a SUD under probation supervision in the Netherlands were assessed at the start of probation supervision and at 12-month follow-up. A total of 38 offenders (45.5%) entered addiction treatment in the follow-up period. Offenders with any mandated treatment (p =.028) and higher treatment motivation (p =.005) were more likely to enter treatment. Multiple logistic regression analysis showed that treatment motivation predicts addiction treatment entry in the first year of probation (OR = 2.215, p <.01). This emphasizes the relevance of treatment motivation for addiction treatment entry among offenders with a SUD. Pretreatment motivational interventions are therefore recommended for offenders with low motivation for treatment in probation settings.