Validity and reliability of an Italian version of the revised Leeds disability questionnaire for patients with ankylosing spondylitis

Ennio Lubrano, P. Sarzi Puttini, W. J. Parsons, S. D'Angelo, M. A. Cimmino, F. Serino, N. Pappone

Research output: Contribution to journalArticlepeer-review

Abstract

Objective. The purpose of the present study was to produce an Italian version of the Revised Leeds Disability Questionnaire (LDQ) in a group of patients with ankylosing spondylitis, and to examine the psychometric properties of this version, evaluating its internal consistency, external validity and reliability. Methods. The LDQ was administered to 60 Caucasian patients affected by ankylosing spondylitis (50 males, 10 females, mean age 46.1 ± 14.2yr, range 22-74, median disease duration 4.5yr, range 1-24) together with the Italian version of the Stanford Health Assessment Questionnaire (HAQ), and anthropometric measurements. Thirty patients completed the questionnaire after a 10-day interval. Internal consistency was evaluated with Cronbach's α coefficient of reliability. Construct validity of the LDQ was evaluated using the correlation between the HAQ and anthropometric measurements. Test-retest reliability was assessed with the intraclass correlation coefficient. Results. All patients completed the validation study. The questionnaire was internally consistent (α=0.90). A significant correlation was recorded between the LDQ and the HAQ score (ρ=0.841, P

Original languageEnglish
Pages (from-to)666-669
Number of pages4
JournalRheumatology
Volume44
Issue number5
DOIs
Publication statusPublished - May 2005

Keywords

  • Ankylosing spondylitis
  • Disability
  • Italian version
  • Revised Leeds Disability Questionnaire
  • Validation

ASJC Scopus subject areas

  • Neuroscience(all)
  • Rheumatology

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