Motivation for Treatment and Motivation for Change in Substance-Dependent Patients with Co-Occurring Psychiatric Disorders

Inpatients in substance use treatment with co-occurring psychiatric disorders: a prospective cohort study of characteristics and relapse predictors

BACKGROUND

The characteristics of substance use disorder (SUD) inpatients with co-occurring psychiatric disorders (COD) have been scantly described in the extant literature. This study investigated psychological, demographic and substance use characteristics in these patients, along with predictors of relapse 3 months post-treatment.

METHODS

Prospective data from a cohort of 611 inpatients were analyzed for demographics, motivation, mental distress, SUD diagnosis, psychiatric diagnoses (ICD-10) and relapse rate at 3 months post-treatment (retention rate = 70%).

RESULTS

Compared to patients without COD (n = 322), those with COD (n = 289) were younger, had higher mental distress, lower education and higher likelihood of no permanent residence. The relapse rate was also higher in patients with COD (39.8%) relative to patients without COD (26.4%) (OR = 1.85, 95% CI: 1.23-2.78). The relapse rate was particularly high for patients with COD who were diagnosed with cannabis use disorder (53.3%). Multivariate analysis revealed that among patients with COD, relapse was more likely for individuals with a cannabis use disorder (OR = 2.31, 95% CI: 1.34-4.00), and less likely for older ages (OR = 0.97, 95% CI: 0.94-1.00), females (OR = 0.56, 95% CI: 0.33-0.98) and for those with higher intrinsic motivation (OR = 0.58, 95% CI: 0.42-0.81).

CONCLUSION

This study showed that among SUD inpatients, those with COD had relatively persistent high levels of mental distress and an increased risk of relapse. Enhanced measures aimed at COD patients' mental health problems during the inpatient stay, along with close and personalized follow-up after discharge from residential SUD treatment may reduce the probability of relapse in this group.

Evaluation of Motivation for the Treatment of Drug Addicts with Personality Disorders

Lack of motivation for the treatment of drug addiction is associated with dropout and relapses. Further, personality disorders (PD) have traditionally been linked to low motivation and therapeutic failure. Thus, the present study aims to analyze the structure of the Motivation for Treatment Questionnaire (MTQ-8), as well as to determine differences in motivation due to the presence of PD and the impact of psychological adjustment on motivation. The sample included 125 patients (84% male) who started a treatment for their addiction to cocaine and alcohol. Rasch analysis was applied for the first objective, and means contrast and regression analysis for the others. The two subscales of the MTQ-8 fit the Rasch model, with appropriate psychometric characteristics when merging Items 5 and 7. The presence of PD was not associated with reduced motivation. Motivation for treatment was greater when abstinence was less than three weeks, and psychological distress predicted motivation for treatment. The present study confirms that MTQ-8 subscales are suitable for measuring motivation for treatment and readiness for change in drug-dependent patients. It is noted that the presence of PD should not be associated with a lower level of motivation, and that psychological distress influences motivation.

Relapse after inpatient substance use treatment: A prospective cohort study among users of illicit substances

AIMS

The main aim was to investigate the relative roles of mental distress and intrinsic motivation for relapse after inpatient substance use disorder (SUD) treatment, while adjusting for demographics and treatment variables.

METHODS

The study is based on a prospective multicenter study with a baseline gross sample of 607 patients with SUD (response rate = 84%) admitted to an inpatient stay at one of five specialized SUD treatment centers in Norway. The analytical sample consisted of patients with illicit drug use (n = 374) who took part in a follow-up interview three months after discharge from inpatient treatment (n = 249) (retention rate = 67%). Data were collected using information from electronic medical records, a self-report questionnaire at treatment entry, and a follow-up interview.

RESULTS

Relapse occurred among 37% of the sample by three-month follow-up. Results of multivariable analysis showed that younger age and having a psychiatric diagnosis were associated with an elevated relapse risk. Patients who received treatment at a short-term clinic (2-4 months), as opposed to a long-term clinic (>6 months) were also at increased risk of relapse, regardless of their length of stay. Reduced risk of relapse was predicted by having completed the inpatient treatment stay.

CONCLUSION

Identifying the treatment needs of young patients and patients with co-occurring psychiatric diagnoses during and following inpatient SUD treatment may contribute to reduced post-treatment relapse rates. Further research is needed to illuminate the treatment-related factors that contribute to reduced risk of relapse after inpatient SUD treatment.

Stages of Change Model has Limited Value in Explaining the Change in Use of Cannabis among Adolescent Participants in an Efficacious Motivational Interviewing Intervention

Previously, a Dutch randomized controlled trial evaluating an intervention aimed at changing adolescents' cannabis use, called Moti-4, has shown its efficacy. A secondary analysis of the Moti-4 data investigated the process of change specified by the Stage of Change (SOC) model in cannabis use during the trial. Seventy-one Moti-4 participants and 60 controls were recruited for the study with a pre-test, post-test (T1), and six-month follow-up (T2). All participants showed signs of problematic cannabis use. No contribution of the Moti-4 intervention to a change in SOC between T1 and T2 was found. Although motivation for treatment and motivation for change can be conceived as independent predictors of treatment outcome, the SOC a person is in does not mediate the effect of the intervention on change in cannabis use. However, a reduction in cannabis use was associated with a positive change in "action willingness," in line with the SOC model. In contrast to model expectations, a higher score on "contemplation" is associated with a higher cannabis consumption. Results highlight both the limitations and usefulness of the SOC model. Future interventions may focus more on the stage of "action willingness," as well as on perceived social norms.