Motivational interviewing to enhance psychosocial treatment attendance in people with SMI.

Fiszdon JM, Choi J, Wang K, Parente LT, Hallinan S, Burton E, Bell MD, Martino S. Motivational interviewing to enhance psychosocial treatment attendance in people with SMI. Schizophrenia Research. 2022 Aug 1; 246:165-171.

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Abstract:

BACKGROUND: While there is increasing support for the efficacy of psychosocial interventions for people with SMI, the real-world effectiveness of such treatments is diminished by lack of motivation for treatment, leading to poor treatment engagement/dropout. We sought to evaluate the efficacy of motivational interviewing (MI) in improving attendance in a full course of cognitive training, examine motivation level as a potential mechanism of action, and examine variables associated with initial engagement in the training. METHODS: One hundred fourteen participants with SMI were randomized to MI or sham control interview (CI), both of which were followed by a 4-month active phase during which participants could attend up to 50 unpaid cognitive training sessions. RESULTS: Fidelity to the MI intervention was high, and MI condition was associated with increases in perceived value of training tasks and, to a lesser extent, how enjoyable/interesting they were rated. Twenty-nine percent of the full sample did not attend any training sessions. In ITT analyses, there was no significant between-group impact of MI on treatment attendance, though one emerged when participants who did not attend any sessions were excluded. Treatment attendance was predicted by the level of motivation achieved after the MI/CI intervention. Those who attended at least one training session (regardless of randomization) were more likely to believe they had cognitive impairments, had higher IQ and had less severe general psychiatric symptoms. CONCLUSIONS: MI showed some promise and may be a worthwhile addition to more comprehensive, robust efforts to promote initial treatment engagement and subsequent adherence.