What Works? Processes of Change in a Transdiagnostic Exposure Treatment for Patients With Chronic Pain and Emotional Problems.

The Clinical Journal of Pain
Martin SödermarkKatja Boersma

Abstract

We recently developed a transdiagnostic exposure treatment (the hybrid treatment) for chronic pain patients with concurrent emotional difficulties. This paper investigates the hypothesized treatment processes, specifically: (1) if changes on pain-related dysregulation (catastrophizing, fear-avoidance, and nonacceptance of pain) and general emotion dysregulation (difficulties to regulate a broad spectrum of emotional responses) mediate effects on outcomes; and (2) if mediation is more pronounced for patients who score higher on these processes pretreatment. Structural equation modeling for longitudinal data using the full intention-to-treat sample was used to test whether proposed variables mediated the effect of the hybrid treatment (n=58) compared with a guided internet-delivered pain management treatment based on cognitive-behavioral principles (n=57) on pain interference and depressive symptoms at the 9-month follow-up. To make full use of the multiple process measures collected in the trial, we modeled mediators as 2 continuous latent variables: pain-related dysregulation and general emotion dysregulation. Reduced pain-related dysregulation mediated the effects of treatment on both outcomes, whereas reduced general emotion ...Continue Reading

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