title: [Cross-cultural validation of the Oswestry disability index in French].
abstract: OBJECTIVE
  The aim of this study was to interpret and validate a French version of the Oswestry disability index (ODI), using a cross-cultural validation method. The validity and reliability of the questionnaire was assessed in order to ensure the psychometric characteristics.
  
  
  METHODS
  The cross-cultural validation was carried out according to Beaton's methodology. The study was conducted with 41 patients suffering from low back pain. The correlation between the ODI and the Roland-Morris disability questionnaire (RMDQ), the medical outcome survey short form-36 (MOS SF-36) and a pain visual analogical scale (VAS) was assessed.
  
  
  RESULTS
  The validity of the Oswestry questionnaire was studied using the Cronbach Alpha coefficient calculation: 0.87 (n=36). The significant correlation between the ODI and RMDQ was 0.8 (P<0.001, n=41) and 0.71 (P<0.001, n=36) for the pain VAS. The correlation between the ODI and certain subscales (physical functioning 0.7 (P<0.001, n=41), physical role 0.49 et bodily pain 0.73 (P<0.001, n=41)) of the MOS SF-36 were equally significant. The reproducibility of the ODI was calculated using the Wilcoxon matched pairs test: there was no significant difference for eight out of ten sections or for the final score.
  
  
  CONCLUSIONS
  This French translation of the ODI should be considered as valid and reliable. It should be used for any future clinical studies carried out using French language patients. Complimentary studies must be completed in order to assess its sensitivity to change in the event of any modifications in the patients functional capacity.
authors.affiliation: Service de physiothérapie, hôpital fribourgeois - freiburger spital, site de Riaz, rue de l'Hôpital 9, 1632 Riaz, Suisse. voglerd@h-fr.ch
authors.forename: D
authors.initials: D
authors.lastname: Vogler
authors.forename: R
authors.initials: R
authors.lastname: Paillex
authors.forename: M
authors.initials: M
authors.lastname: Norberg
authors.forename: P
authors.initials: P
authors.lastname: de Goumoëns
authors.forename: J
authors.initials: J
authors.lastname: Cabri
mesh_terms: D000293:Adolescent; D000328:Adult; D003431:Cross-Cultural Comparison; D003627:Data Interpretation, Statistical; D004185:Disability Evaluation; D005260:Female; D005602:France; D006801:Humans; D008297:Male; D008875:Middle Aged; D018709:Statistics, Nonparametric; D011795:Surveys and Questionnaires / Q000592:standards; D014177:Translations