The Impact of Perceived Injustice on Pain-related Outcomes: A Combined Model Examining the Mediating Roles of Pain Acceptance and Anger in a Chronic Pain Sample

Overview

Journal Clin J Pain

Specialties Neurology
Psychiatry

Date 2018 Feb 28

PMID 29485535

Citations 19

Authors

Junie S Carriere

John A Sturgeon

Esther Yakobov

Ming-Chih Kao

Sean C Mackey

Beth D Darnall

Affiliations

Soon will be listed here.

Abstract

Objective: Perceived injustice (PI) has been identified as an important risk factor for pain-related outcomes. To date, research has shown that pain acceptance and anger are mediators of the association between PI and pain-related outcomes. However, a combined conceptual model that addresses the interrelationships between these variables is currently lacking. Therefore, the current study aimed to examine the potential mediating roles of pain acceptance and anger on the association between PI and adverse pain-related outcomes (physical function, pain intensity, opioid use status).

Materials And Method: This cross-sectional study used a sample of 354 patients with chronic pain being treated at a tertiary pain treatment center. Participants completed measures of PI, pain acceptance, anger, physical function, pain intensity, and opioid use status. Mediation analyses were used to examine the impact of pain acceptance and anger on the association between PI and pain-related outcomes.

Results: Examination of the specific indirect effects revealed that pain acceptance fully mediated the relationship between PI and physical function, as well as the relationship between PI and opioid use status. Pain acceptance emerged as a partial mediator of the relationship between PI and pain intensity.

Discussion: This is the first study to provide a combined conceptual model investigating the mediating roles of pain acceptance and anger on the relationship between PI and pain outcomes. On the basis of our findings, low levels of pain acceptance associated with PI may help explain the association between PI and adverse pain outcomes. Clinical and theoretical implications are discussed.

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