title: [Validation of the German version of the Oxford Elbow Score : A cross-sectional study].
abstract: BACKGROUND
  Elbow complaints are complex problems leading to severe consequences for affected people and the healthcare system. The German version of the Oxford Elbow Score (OES) is the first German-speaking instrument that specifically measures elbow complaints from the patient's perspective and changes of their health status.
  
  
  OBJECTIVE
  The aim of this study is the validation of the German version of the OES. In this context the internal consistency and the construct validity were investigated.
  
  
  METHODS
  59 patients with elbow complaints completed the German version of the OES, the DASH and the SF-36 in a cross-sectional study. The internal consistency was calculated with Cronbach's alpha coefficients. Spearman's correlation coefficients were used to confirm construct validity.
  
  
  RESULTS
  Cronbach's alpha for pain, function and psychological subscales was 0.88, 0.81 and 0.90, respectively. The whole questionnaire presents a Cronbach's alpha value of 0.93. Convergent construct validity was confirmed with correlation coefficients containing values of -0.84, -0.77 and -0.82 compared to DASH and values ranging from 0.41 to 0.80 compared with the physical domains of the SF-36. The divergent construct validity presented values ranging from 0.07 to 0.20 with the SF-36 domains of "general health perception" and "mental health".
  
  
  CONCLUSIONS
  The German OES is an internal consistent instrument with good convergent and divergent construct validity. Other aspects of the validity, the reliability and the responsiveness should be confirmed through further studies.
authors.affiliation: Hildesheim/Holzminden/Göttingen, Fachbereich Soziale Arbeit und Gesundheit, Hochschule für Angewandte Wissenschaft und Kunst (HAWK), Goschentor 1, Hildesheim, Deutschland. jomarquardt@web.de.
authors.forename: J
authors.initials: J
authors.lastname: Marquardt
authors.affiliation: Hildesheim/Holzminden/Göttingen, Fachbereich Soziale Arbeit und Gesundheit, Hochschule für Angewandte Wissenschaft und Kunst (HAWK), Goschentor 1, Hildesheim, Deutschland.
authors.forename: T
authors.initials: T
authors.lastname: Schöttker-Königer
authors.affiliation: Hildesheim/Holzminden/Göttingen, Fachbereich Soziale Arbeit und Gesundheit, Hochschule für Angewandte Wissenschaft und Kunst (HAWK), Goschentor 1, Hildesheim, Deutschland.
authors.forename: A
authors.initials: A
authors.lastname: Schäfer
mesh_terms: D018771:Arthralgia / Q000175:diagnosis* / Q000209:etiology / Q000517:prevention & control; D003430:Cross-Sectional Studies; D004185:Disability Evaluation; D004551:Elbow Joint / Q000601:surgery*; D005260:Female; D005858:Germany; D006801:Humans; D007592:Joint Diseases / Q000150:complications / Q000175:diagnosis* / Q000601:surgery*; D008297:Male; D008875:Middle Aged; D017063:Outcome Assessment, Health Care / Q000379:methods*; D010147:Pain Measurement / Q000379:methods; D011594:Psychometrics / Q000379:methods; D011788:Quality of Life; D015203:Reproducibility of Results; D012680:Sensitivity and Specificity; D011795:Surveys and Questionnaires; D014175:Translating; D016896:Treatment Outcome
keywords: Elbow joint; Outcome assessment, patient; Patient-centered outcomes research; Reliability of Results; Reproducibility of findings