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Objectives:It is not known whether psychosocial chronic pain treatments produce benefits through the unique mechanisms specified by theory. Fundamental to gaining an accurate understanding of this issue is to first determine whether the most widely used process measures assess unique constructs and predict unique variance in pain outcomes. This study examined the associations between the Pain Catastrophizing Scale (PCS), Five-Facet Mindfulness Questionnaire (FFMQ-SF), and the Chronic Pain Acceptance Questionnaire (CPAQ-8), and determined their unique contributions to the prediction of pain intensity, pain interference, and depression.
Methods:
A cross-sectional study was conducted with undergraduate students (N=260) reporting chronic or intermittent pain. Correlations, regression models, and multiple mediation models were performed. Relevant covariates were included.
Results:
The PCS, FFMQ-SF scales, and CPAQ-8 were correlated in mostly expected directions, but not so highly as to indicate redundancy. The PCS significantly predicted pain intensity, interference, and depression. The FFMQ-SF Observing and Describing scales predicted pain intensity; Nonreactivity and Nonjudging significantly predicted interference and depression, respectively. The CPAQ-8 was not a significant predictor in any of the regression models. The PCS was a comparatively stronger mediator than the FFMQ-SF scales in the intensity to interference, and intensity to depression mediation models.
Discussion:
The findings indicate that pain catastrophizing, mindfulness, and pain acceptance are related, but unique constructs. The PCS and select FFMQ-SF scales were uniquely associated with the criterion measures. However, the PCS emerged as the most robust process, highlighting the importance of targeting this cognitive domain in streamlining pain treatments to optimize outcome.
Mindfulness, as both a process and a practice, has received substantial research attention across a range of health conditions, including chronic pain. Previously proposed mechanisms underlying the potential health-related benefits of mindfulness and mindfulness-based interventions (MBIs) are based on a strong theoretical background. However, to date, an empirically grounded, integrated theoretical model of the mechanisms of MBIs within the context of chronic pain has yet to be proposed. This is a surprising gap in the literature given the exponential growth of studies reporting on the benefits of MBIs for heterogeneous chronic pain conditions. Moreover, given the importance of determining how, and for whom, psychological interventions for pain management are effective, it is imperative that this gap in the literature be addressed. The overarching aim of the current theoretical paper was to propose an initial integrated, theoretically driven, and empirically based model of the mechanisms of MBIs for chronic pain management. Theoretical and research implications of the model are discussed. The theoretical considerations proposed herein can be used to help organize and guide future research that will identify the mechanisms underlying the benefits of mindfulness-based treatments, and perhaps psychosocial treatments more broadly, for chronic pain management.
Mindfulness, as both a process and a practice, has received substantial research attention across a range of health conditions, including chronic pain. Previously proposed mechanisms underlying the potential health-related benefits of mindfulness and mindfulness-based interventions (MBIs) are based on a strong theoretical background. However, to date, an empirically grounded, integrated theoretical model of the mechanisms of MBIs within the context of chronic pain has yet to be proposed. This is a surprising gap in the literature given the exponential growth of studies reporting on the benefits of MBIs for heterogeneous chronic pain conditions. Moreover, given the importance of determining how, and for whom, psychological interventions for pain management are effective, it is imperative that this gap in the literature be addressed. The overarching aim of the current theoretical paper was to propose an initial integrated, theoretically driven, and empirically based model of the mechanisms of MBIs for chronic pain management. Theoretical and research implications of the model are discussed. The theoretical considerations proposed herein can be used to help organize and guide future research that will identify the mechanisms underlying the benefits of mindfulness-based treatments, and perhaps psychosocial treatments more broadly, for chronic pain management.