Journal of Rehabilitation Medicine 51-1CompleteIssue | Page 5

J Rehabil Med 2019; 51: 2–10 REVIEW ARTICLE PREDICTORS OF DROPOUT IN INTERDISCIPLINARY CHRONIC PAIN MANAGEMENT PROGRAMMES: A SYSTEMATIC REVIEW Janke OOSTERHAVEN, PT, MSc 1,2 , Harriet WITTINK, PT, PhD 1 , Jurgen MOLLEMA, MSc 1 , Cas KRUITWAGEN, MSc 1,3 and Walter DEVILLÉ, MD, PhD 2–4 From the 1 Research Group Lifestyle and Health, University of Applied Sciences Utrecht, Utrecht, 2 Amsterdam Institute for Social Science Research, University of Amsterdam, Amsterdam, 3 Julius Centre for Health Sciences and Primary Care, University Medical Centre Utrecht, and 4 National Knowledge and Advisory Centre on Migrants, Refugees and Health (Pharos), Utrecht, The Netherlands Objective: Systematic review to identify predictors for dropout during interdisciplinary pain manage- ment programmes. Data sources: PubMed, PsycINFO, CINAHL, Embase, and SPORTDiscus were searched from inception to 22 June 2017. Study selection: Screening, data-extraction and qua- lity assessment was carried out independently by 2 researchers. Data synthesis: Eight studies with low methodolo- gical quality were included in this review. Out of 63 potential predictors identified in univariate analy- ses, significant results were found for 18 predictors of dropout in multiple logistic regression analyses in 4 domains, as described by Meichenbaum & Turk: (i) sociodemographic domain (2); (ii) patient domain (8); (iii) disease domain (6); and (iv) treatment do- main (2). Conclusion: This systematic review presents an overview of predictors of dropout. The literature with regard to the prediction of dropout has focused mainly on patient characteristics and is still in the stage of model development. Future research should focus on therapist/therapy-related predictors and the interaction between these predictors. This re- view suggests future research on this topic, in order to generate better outcomes in interdisciplinary pain management programmes. Key words: dropout; chronic musculoskeletal pain; interdis- ciplinary pain management programmes; systematic review. Accepted Oct 2, 2018; Epub ahead of print Dec 4, 2018 J Rehabil Med 2019; 51: 2–10 Correspondence address: Janke Oosterhaven, Research Group Lifest- yle and Health, University of Applied Sciences Utrecht, Heidelberglaan 7, NL-3584 CS Utrecht, The Netherlands. E-mail: janke.oosterhaven@ hu.nl D ropout from chronic musculoskeletal pain ma- nagement programmes is associated with poor treatment outcomes (1–3). Despite this, dropout con- tinues to be a neglected topic even after Turk & Rudy brought relapse and non-compliance to attention as a significant problem in chronic pain management (4). This is remarkable, since the assumption is that, be- cause of the complexity of chronic pain management programmes and the focus on self-care behaviour, dropout is inevitable (4–6). LAY ABSTRACT Dropout from interdisciplinary pain management pro- grammes is reported to be high. This may result in poor treatment outcomes. Therefore, paying attention to the prevention of dropout is important. This systematic review presents an overview of predictors of dropout (mainly patient characteristics) and makes suggestions for future research on this topic. To date, the literature on dropout in interdisciplinary pain management has largely relied on post-hoc ana- lyses on differences between dropouts and treatment completers in cross-sectional research studies. The importance of dropout is acknowledged considering the dropout rates found in these studies ranging from 5% to 46% (4, 7, 8). However, few longitudinal studies have been performed and, as yet, no systematic review has summarized predictors for dropout. More insight in these predictors is needed to develop strategies to prevent premature treatment dropout. Although various definitions of dropout exist, we used the following definition: “patients with chronic pain, who were refer- red to a chronic pain management programme, who initiated (participated in the baseline assessments), but discontinued prior to completion of the entire programme” (9). Since therapy for patients with chronic pain is partly similar to that of patients with mental disorders, we can look at mental health research that has been done on dropout in psychotherapy/cognitive therapy. This literature demonstrated dropout incidences around 20% (19.7–21.9%) and valuable insights with regard to predictors of dropout have been gained (10–13). These predictors can be categorized in 5 domains of barriers to retention in therapy, as suggested by Meic- henbaum & Turk (14): (i) sociodemographic (dropouts were younger and less educated (10, 13)); (ii) patient (dropouts were less motivated for treatment, prefer- red alternative treatments and were diagnosed with a specific disorder such as depression or substance use disorder) (10–13); (iii) disease; (iv) treatment (no pre-determined treatment time limit and outpatient treatments were associated with dropout); and (v) healthcare system/system domain (higher dropout rates were found when the treatment was applied by trainees instead of licensed therapists (10)). This is an open access article under the CC BY-NC license. www.medicaljournals.se/jrm doi: 10.2340/16501977-2502 Journal Compilation © 2019 Foundation of Rehabilitation Information. ISSN 1650-1977