Evidence-based guidelines for using the Short Form 36 in cervical dystonia.

Stefan J. Cano, Alan J. Thompson, Khailash Bhatia, Ray Fitzpatrick, Thomas T. Warner, Jeremy C. Hobart*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

Abstract

We aimed to provide evidence-based guidelines for using the Short Form 36 (SF-36) as an outcome measure in cervical dystonia (CD). To do this, we tested the hypothesized relationships between items, scales, and summary measures of the SF-36 using psychometric analyses in data from a postal survey of 235 people with CD. Although the majority of subscales performed adequately, the Role Physical and Role Emotional subscales had substantial floor and/or ceiling effects. Evidence did not support computing SF-36 Physical and Mental Component Summary scores. We propose guidelines that include the recommendation that these subscale and summary scores should be reported with caution.
Original languageEnglish
Pages (from-to)122-126
Number of pages0
JournalMov Disord
Volume22
Issue number1
DOIs
Publication statusPublished - Jan 2007

Keywords

  • Aged
  • Evidence-Based Medicine
  • Female
  • Guidelines as Topic
  • Humans
  • Male
  • Middle Aged
  • Psychometrics
  • Severity of Illness Index
  • Torticollis

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