Internal consistency, stability, and validity of the spinal cord injury version of the multidimensional pain inventory

Eva G. Widerström-Noga, Yenisel Cruz-Almeida, Alberto Martinez-Arizala, Dennis C. Turk

Research output: Contribution to journalArticle

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Abstract

Objective: To evaluate the internal consistency, stability, and construct validity of a spinal cord injury (SCI) version of the Multidimensional Pain Inventory (MPI-SCI). Design: Interview. Setting: Veterans Affairs medical center and university-based institute. Participants: Community sample of persons with SCI and chronic pain (N=161). Interventions: Not applicable. Main Outcome Measure: The MPI-SCI. Results: The internal consistency of the MPI-SCI subscales ranged from fair (.60) for affective distress to substantial (.94) for pain interference with activities. The subscales of the MPI-SCI (ie, life interference [r=.81], affective distress [r=.71], solicitous responses [r=.86], distracting responses [r=.85], general activity [r=.69], pain interference with activities [r=.78], pain severity [r=.69], negative responses [r=.69]) showed adequate stability. In contrast, the stability of the support (r=.59) and the life control subscales (r=.31) was unacceptably low. All MPI-SCI subscales with the exception of the perceived responses by significant others subscales showed good convergent, discriminant, and concurrent validity. Conclusions: The MPI-SCI appears to be a reasonable measure for evaluating chronic pain impact after SCI. In clinical trials, however, supplementary instruments should be included to assess changes in affect, social support, and perceptions of life control.

Original languageEnglish (US)
Pages (from-to)516-523
Number of pages8
JournalArchives of physical medicine and rehabilitation
Volume87
Issue number4
DOIs
StatePublished - Apr 1 2006

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Keywords

  • Pain
  • Pain measurement
  • Psychometrics
  • Rehabilitation
  • Spinal cord injuries

ASJC Scopus subject areas

  • Rehabilitation

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