Clinical Translation: Understanding And Addressing Premature Termination From Psychotherapy For Gambling Disorder
Samuel C. Peter, Ph.D. and Rory A. Pfund, Ph.D.
Psychotherapeutic interventions are efficacious treatments for problem gambling and gambling disorder, and participants who attend more intervention sessions generally show more favorable outcomes. Studies on these interventions often report participant “dropout,” which is typically defined as occurring when a participant discontinues an intervention prior to its completion. However, there is a lack of consensus on how dropout is defined and measured across studies, and the lack of consensus is often cited as a reason that the field struggles to identify a consistent set of risk factors for dropout.
We recently published a systematic review and meta-analysis in Psychology of Addictive Behaviors to strengthen consensus on the definition of dropout. Specifically, we estimated the prevalence of dropout in psychotherapeutic treatments for problem gambling and gambling disorder, examined potential biopsychosocial risk factors, and summarized how researchers measured dropout. Overall, we found that 39% of individuals dropped out of psychotherapy, and the prevalence of dropout was significantly lower among participants who were married. Furthermore, we found that researchers measured dropout in three ways: attending less than all sessions of an intervention protocol, attending less than a prespecified number of sessions different from the total number in a protocol, and subjectively judging participants to be dropouts. The prevalence of dropout was significantly higher when defined as attending all sessions (64%) than a minimum number of sessions (33%) and therapist judgment (27%).
Based on these findings, several important clinical recommendations follow.
Original article: Pfund, R. A., Peter, S. C., McAfee, N. W., Ginley, M. K., Whelan, J. P., & Meyers, A. W. (2021). Dropout from face-to-face, multi-session psychological treatments for problem and disordered gambling: A systematic review and meta-analysis. Psychology of Addictive Behaviors, 35(8), 901-913. https://doi.org/10.1037/adb0000710
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