Validation of the Bath CRPS Body Perception Disturbance Scale

Antonia F Ten Brink, Monika Halicka, Axel D Vittersø, Hannah G Jones, Tasha R Stanton, Janet H Bultitude

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Abstract

The Bath Complex Regional Pain Syndrome Body Perception Disturbance Scale ("B-CRPS-BPDS") measures alterations in body perception. We assessed its internal consistency, known group validity, construct validity, and associations with demographic and clinical characteristics. We also evaluated changes in, and baseline predictors of B-CRPS-BPDS scores at follow-up. We included people with CRPS (N = 114) and pain-free controls (N = 69). People with CRPS obtained higher scores than pain-free controls on all B-CRPS-BPDS items, except the item on attention. Because this item also had an insufficient corrected item-total correlation, we propose a revised B-CRPS-BPDS (r-B-CRPS-BPDS) excluding this item. The internal consistency of the r-B-CRPS-BPDS was good. The r-B-CRPS-BPDS showed a large positive relationship with "motor neglect-like symptoms", indicating good construct validity. The r-B-CRPS-BPDS showed positive relationships with pain intensity, fear of movement, depression, and upper limb disability. There were no independent relationships with handedness, affected side, affected limb, disease duration, CRPS severity score, tension, anger, fatigue, confusion, and vigour. Finally, r-B-CRPS-BPDS scores did not consistently change over time. Our results demonstrate the utility of the r-B-CRPS-BPDS for measuring body perception disturbances in CRPS. PERSPECTIVE: This article evaluates the validity of the Bath Complex Regional Pain Syndrome Body Perception Disturbance Scale ("B-CRPS-BPDS") in CRPS, and assesses relationships with demographic and clinical variables. The proposed revised B-CRPS-BPDS appears to be a valid measure of body perception disturbances in CRPS.

Original languageEnglish
Pages (from-to)1371-1384
Number of pages14
JournalJournal of Pain
Volume22
Issue number11
Early online date5 May 2021
DOIs
Publication statusPublished - 30 Nov 2021

Bibliographical note

Funding Information:
Disclosures: The authors declare that they have no conflict of interest. Antonia Ten Brink was supported by a grant ( 019.173SG.019 ) from the Netherlands Organisation for Scientific Research ( NWO ). Axel Davies Vittersø received funding from the GW4 BioMed Medical Research Council Doctoral Training Partnership ( 1793344 ). Tasha Stanton was supported by a National Health & Medical Research Council of Australia Career Development Fellowship ( ID1141735 ). The funders had no role in study design; collection, analysis and interpretation of data; writing the report; and the decision to submit the article for publication.

Publisher Copyright:
© 2021 United States Association for the Study of Pain, Inc.

Keywords

  • Bath CRPS Body Perception Disturbance Scale
  • Complex regional pain syndrome
  • body perception disturbances
  • chronic pain
  • neglect-like symptoms

ASJC Scopus subject areas

  • Neurology
  • Clinical Neurology
  • Anesthesiology and Pain Medicine

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