The effect of legal mandates on substance use disorder treatment completion among older adults.

This study seeks to determine the relationship between referral type (legally mandated versus non-mandated) and substance use disorder (SUD) treatment completion among older adults and by primary substance used. We used data from the Treatment Episode Data Set - Discharges (TEDS-D) from 2011. Using data for persons age 55 and over ( = 104,747), we used propensity score matching (PSM) to address selection bias and attenuate the likelihood of a type I error. Logistic regression models estimated the effect of referral type on treatment completion based on treatment for a primary substance for five categories of substances. In the matched sample, those who faced treatment mandates had 71% greater odds of completing treatment compared with those who entered treatment voluntarily (OR =1.71, 95% CI [1.64, 1.79]). Based on the primary drug used, odds of treatment completion were highest for alcohol, with 86% greater treatment completion for the mandated individuals compared with those entering treatment without a legal mandate (OR =1.86, 95% CI [1.75, 1.97]). These findings suggest that the motivating influence of treatment mandates may encourage completion of SUD treatment among older adults. Although the legal mandates for treatment are punitive, they may act to keep older adults with SUD engaged in treatment, an important factor as treatment completion is inversely related to relapse of a SUD.