title: Oxford Shoulder Score: A Cross-Cultural Adaptation and Validation Study of the Persian Version in Iran.
abstract: BACKGROUND
  Oxford shoulder score is a specific 12-item patient-reported tool for evaluation of patients with inflammatory and degenerative disorders of the shoulder. Since its introduction, it has been translated and culturally adapted in some Western and Eastern countries. The aim of this study was to translate the Oxford Shoulder Score (OSS) in Persian and to test its validity and reliability in Persian speaking population in Iran.
  
  
  METHODS
  One hundred patients with degenerative or inflammatory shoulder problem participated in the survey in 2012. All patients completed the Persian version of OSS, Persian DASH and the SF-36 for testing validity. Randomly, 37 patients filled out the Persian OSS again three days after the initial visit to assess the reliability of the questionnaire.
  
  
  RESULTS
  Cronbach's alpha coefficient was 0.93. The intraclass correlation coefficient was 0.93. In terms of validity, there was a significant correlation between the Persian OSS and DASH and SF-36 scores (P < 0.001).
  
  
  CONCLUSIONS
  The Persian version of the OSS proved to be a valid, reliable, and reproducible tool as demonstrated by high Cronbach's alpha and Pearson's correlation coefficients. The Persian transcript of OSS is administrable to Persian speaking patients with shoulder condition and it is understandable by them.
authors.affiliation: Associate Professor, Shoulder and Knee Surgeon Director, Orthopedic Research Center, Mashhad University of Medical Sciences, Mashhad, Iran.
authors.forename: Mohammad H
authors.initials: MH
authors.lastname: Ebrahimzadeh
authors.affiliation: Associate Professor of Orthopedic Surgery, Orthopedic Research Center, Mashhad University of Medical Sciences, Mashhad, Iran.
authors.forename: Ali
authors.initials: A
authors.lastname: Birjandinejad
authors.affiliation: Orthopedic Research Center, Mashhad University of Medical Sciences, Mashhad, Iran.
authors.forename: Shiva
authors.initials: S
authors.lastname: Razi
authors.affiliation: Assistant Professor of Orthopedic Surgery, Orthopedic Research Center, Guilan University of Medical Sciences, Rasht, Guilan, Iran.
authors.forename: Mohsen
authors.initials: M
authors.lastname: Mardani-Kivi
authors.affiliation: Assistant Professor, Mashhad University of Medical Sciences, Mashhad, Iran ; Research Fellow, Massachusetts General Hospital, Harvard Medical School, Boston, USA.
authors.forename: Amir
authors.initials: A
authors.lastname: Reza Kachooei
keywords: Iran; Oxford shoulder score; Reliability; Shoulder pain; Validation