Development and Validation of the English Pain Interference Index and Pain Interference Index-Parent Report

Staci Martin, Shawn Nelson Schmitt, Pamela L. Wolters, Brittany Abel, Mary Anne Toledo-Tamula, Andrea Baldwin, Rikard K. Wicksell, Melinda Merchant, Brigitte Widemann

Research output: Contribution to journalArticle

Abstract

Objective: Measurement of pain interference in children is challenged by a lack of validated measures with a parent proxy report. This study investigated the psychometric properties of the Pain Interference Index (PII), a six-item questionnaire originally developed in Swedish, in chronically ill youth. Methods: We adapted the PII for English-speaking participants and created a parallel parent proxy measure. Respondents indicate how much pain has interfered with the child's life in the past 2 weeks (0-6 scale); higher scores indicate more pain interference. Eligible participants included individuals 6-25 years with neurofibromatosis type 1 (NF1) and cancer. Internal consistency was assessed; validity was examined by correlating PII scores with existing measures of pain interference (Modified Brief Pain Inventory [MBPI]) and pain intensity (visual analogue scale [VAS]), and with measures of disease severity. Results: Among 60 participants (mean age 14.7 years, range 6-24) and their parents, PII internal consistency was 0.84 and 0.96, respectively. PII scores correlated with MBPI (r=0.81, P

Original languageEnglish (US)
Pages (from-to)367-373
Number of pages7
JournalPain Medicine
Volume16
Issue number2
DOIs
Publication statusPublished - Feb 1 2015
Externally publishedYes

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Keywords

  • Adolescents
  • Cancer
  • Children
  • NF1
  • Pain Interference
  • Validation

ASJC Scopus subject areas

  • Clinical Neurology
  • Anesthesiology and Pain Medicine
  • Medicine(all)

Cite this

Martin, S., Nelson Schmitt, S., Wolters, P. L., Abel, B., Toledo-Tamula, M. A., Baldwin, A., ... Widemann, B. (2015). Development and Validation of the English Pain Interference Index and Pain Interference Index-Parent Report. Pain Medicine, 16(2), 367-373. https://doi.org/10.1111/pme.12620