RESUMO
Background: Although cognitive-behavioural treatments for chronic pain are delivered in groups, there is little research investigating group effects in these treatments. Purpose: The aim of this study was to investigate associations between group composition variables at the start of treatment and individual outcomes following intensive interdisciplinary treatment for pain based on Acceptance and Commitment Therapy. Methods: This was a secondary analysis of routinely collected observational data. Five-hundred and sixteen patients completed a standard set of demographic, pain-related and psychosocial measures at pre- and post-treatment. Intracluster correlations (ICCs) were computed to examine the clustering of outcomes within groups and multilevel models explored the association between group composition variables and individual level outcomes. Results: The ICCs for pain intensity (0.11) and interference (0.09) suggested that multilevel models were warranted for these outcomes, while a multilevel model for post-treatment depression (ICC = 0.04) was not warranted. Group percentage of participants receiving disability benefits and group mean pain intensity at pre-treatment were significantly positively associated with individual level pain intensity at post-treatment, controlling for pre-treatment individual level pain intensity. Group mean pain intensity at pre-treatment was the only group variable that significantly predicted post-treatment pain interference at the individual level. Psychosocial group composition variables were not significantly associated with individual level outcomes. Conclusion: Given the limited predictive utility of group composition variables in the current study, future research should undertake direct assessment of group level therapeutic and countertherapeutic processes to advance understanding of who benefits from group treatments for pain and how. As the variance in outcomes accounted for by group clustering was relatively small and significant within groups variance remained, research is also needed to further understand individual level factors that influence cognitive-behavioural treatment outcomes for pain.
RESUMO
OBJECTIVES: Physiotherapists increasingly deliver treatment informed by cognitive-behavioural therapy, including Acceptance and Commitment Therapy (ACT), for persistent pain. This study explored patients' experiences of ACT-informed physiotherapy to better understand therapeutic processes and outcomes. DESIGN: A qualitative descriptive study was conducted. Focus groups explored participants' experience of ACT-informed physiotherapy in the context of a pain management programme. Responses were audio recorded, transcribed verbatim, and analysed using a hybrid inductive-deductive reflexive thematic analysis. SETTING: A single tertiary care pain management service. PARTICIPANTS: The sample consisted of fifteen patients from two treatment groups who completed an intensive multidisciplinary ACT-based pain management programme. Participants were included irrespective of their treatment response. RESULTS: One overarching theme (living more and struggling less) and four interconnected themes were generated from the data: 1) awareness and openness help to approach physical activities flexibly; 2) from battling against to working with the body compassionately; 3) from narrow focus to curiosity, freedom, and expansion; and 4) social connection is a catalyst for openness and engagement. CONCLUSIONS: Participants experienced ACT-informed physiotherapy as helping them to live more and struggle less with pain; this occurred in the context of a psychologically flexible relationship with the physiotherapist and was catalysed by social connection. These findings should be seen as preliminary given the small number and relatively brief duration of focus groups conducted. Further research is needed to explore how principles within ACT-informed physiotherapy may support patients and clinicians to respond effectively to the challenges that persistent pain can bring.
