An evaluation of readiness to change and treatment outcomes among people who use mono- and poly-substances

Abstract Mono- and poly-substance misuse in the United States are on the rise, however evaluation efforts typically focus on mono-substance use. This study evaluated Readiness to Change (RTC) and Committed Action (CA) scores for people who use mono- vs. poly-substances among 146 adults who participated in a reentry and recovery program. Data were collected at three time points. Bivariate analyses and logistic regression were used to analyze the data. Baseline CA scores were significantly and positively associated with treatment outcomes. Individuals who scored higher in baseline RTC stages and who completed supervision had greater odds of program success. Substance use measures were not significantly related to treatment outcomes. Our findings revealed that substance use did not alter program outcomes, but that CA and RTC scores predict program success. These findings can help inform future interventions such that individuals with lower RTC and CA at baseline might need additional support.