Measuring stigma in chronic pain: preliminary investigation of instrument psychometrics, correlates, and magnitude of change in a prospective cohort attending interdisciplinary treatment

Scott, Whitney, Yu, Lin ORCID: https://orcid.org/0000-0003-0038-9266, Patel, Shrina and McCracken, Lance M. (2019) Measuring stigma in chronic pain: preliminary investigation of instrument psychometrics, correlates, and magnitude of change in a prospective cohort attending interdisciplinary treatment. The Journal of Pain, 20 (10) . pp. 1164-1175. ISSN 1526-5900 (doi:10.1016/j.jpain.2019.03.011)

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Abstract

Chronic pain is a potentially stigmatizing condition. However, stigma has received limited empirical investigation in people with chronic pain. Therefore, we examined the psychometric properties of a self-report questionnaire of stigma in people with chronic pain attending interdisciplinary treatment. Secondarily, we undertook an exploratory examination of the magnitude of change in stigma associated with interdisciplinary treatment in a prospective observational cohort. Participants attending interdisciplinary treatment based on acceptance and commitment therapy completed the Stigma Scale for Chronic Illness 8-item version (SSCI-8; previously developed and validated in neurological samples), and measures of perceived injustice, pain acceptance, and standard pain outcomes before (n = 300) and after treatment (n = 247). A unidimensional factor structure and good internal consistency were found for the SSCI-8. Total SSCI-8 scores were correlated with pain intensity, indices of functioning, and depression in bivariate analyses. Stigma scores were uniquely associated with functioning and depression in multiple regression analyses controlling for demographic factors, pain intensity, pain acceptance, and perceived injustice at baseline. SSCI-8 total scores did not significantly improve after treatment, although an exploratory subscale analysis showed a small improvement on internalized stigma. In contrast, scores on perceived injustice, pain acceptance, and pain outcomes improved significantly. Taken together, these data support the reliability and validity of the SSCI-8 for use in samples with chronic pain. Further research is needed optimize interventions to target stigma at both the individual and societal levels.

Item Type: Article
Keywords (uncontrolled): Stigma in justice, chronic pain
Research Areas: A. > School of Science and Technology > Psychology
Item ID: 28971
Notes on copyright: © 2019. This manuscript version is made available under the CC-BY-NC-ND 4.0 license http://creativecommons.org/licenses/by-nc-nd/4.0/
Useful Links:
Depositing User: Lin Yu
Date Deposited: 07 Feb 2020 08:59
Last Modified: 14 Aug 2020 11:15
URI: https://eprints.mdx.ac.uk/id/eprint/28971

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