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Übersetzung und psychometrische Austestung des Rotator Cuff Quality-of-Life Measure (RC-QOL) für den Gebrauch im deutschen Sprachraum

Translation and psychometric testing of the Rotator Cuff Quality-of-Life Measure (RC-QOL) for use in German

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Zusammenfassung

Die Beurteilung der Lebensqualität eines Patienten stellt ein zunehmendes Kriterium zur Bewertung von Behandlungsverfahren dar. Der vom angloamerikanischen Raum ausgehende Prozess führte zur Entwicklung einer Vielzahl verschiedener Messinstrumente, die auch spezifisch Erkrankungen des muskuloskelettalen Apparates und deren Therapieverlauf evaluieren. Mangels eines deutschsprachigen Messinstrumentes für Patienten mit pathologischen Veränderungen der Rotatorenmanschette, soll die Übersetzung und psychometrische Austestung des 34-Item umfassenden, multidimensionalen, englischsprachigen Rotator Cuff Quality-of-Life Measure (RC-QOL) nach internationalen Richtlinien erfolgen.

Nach Übersetzung und Cross-Culture-Adaptation des englischen Originals wurde die Reliabilität (Test-Retest-Reliabilität, interne Konsistenz), die Validität, die Praktikabilität und Akzeptanz der deutschen Version des RCQOL an 102 Patienten mit einer Impingementsymptomatik geprüft. Zusätzlich wurden der SF-36, der Constant- und der UCLA-Score an allen Patienten erhoben.

Der Pearson-Korrelationskoeffizient war mit 0,89 ausreichend hoch für die Test-Retest-Reliabilität, zwischen beiden Erhebungen zeigte sich kein signifikanter Unterschied. Die interne Konsistenz erbrachte mit einem Cronbach-Alpha-Koeffizienten von 0,98 eine hohe Homogenität. Der Pearson-Korrelationskoeffizient wies mit Werten von 0,67–0,76 eine hohe Korrelation mit den physischen Subskalen des SF-36, dem Constant- und UCLA-Score auf. Die durchschnittliche Zeit zur Beantwortung des RC-QOL lag bei 12 Minuten, zur Auswertung wurden 10 Minuten benötigt. 16 Patienten (15,6%) füllten den Fragebogen unvollständig aus, insgesamt blieben 120 Einzelfragen (3,5%) unbeantwortet.

Nach erfolgreicher Übersetzung und psychometrischer Austestung der deutschsprachigen Version des Rotator Cuff Quality-of-Life Measure (RC-QOL) steht nun ein multidimensionales Messinstrument zur Erhebung der Lebensqualität von deutschsprachigen Patienten mit einer pathologischen Veränderung an der Rotatorenmanschette zur Verfügung.

Summary

The evaluation of quality of life is an established criterion for evaluation of therapeutic measures. Starting from the English-speaking area a great number of different patient-based outcomes measures were developed to specifically question disorders of the musculoskeletal system and the results of treatment. Because of the lack of a German measurement tool for patients with rotator cuff disease the translation and the psychometric testing following international guidelines of the 34-item, multidimensional, English Rotator Cuff Quality-of-Life Measure (RC-QOL) was undertaken. Reliability (test-retest reliability, internal consistency), validity, practicability and acceptance of the German version of the RC-QOL were tested by 102 patients with an impingement syndrome after translation and cross-culture adaptation of the English original questionnaire. In addition, the SF-36, the Constant and UCLA scores were evaluated. Between the evaluations there was no significant difference; the Pearson correlation coefficient was 0.89 for the test-retest reliability. The internal consistency showed a high homogeneity with a Cronbach Alpha-coefficient of 0.98. A Pearson correlation coefficient between 0.67–0.76 registered a high correlation with the physical subscales of the SF-36, the Constant and the UCLA scores. The mean time required for completing the RC-QOL was 12 minutes; mean time required for evaluation was 10 minutes. The questionnaire was incompletely answered by 16 patients (15.6%). A total of 120 items (3.5%) were left unanswered. After successful translation and psychometric testing of the German version of the Rotator Cuff Quality-of-Life Measure (RC-QOL) a multidimensional measurement tool for evaluating the quality of life of German-speaking patients with pathology of the rotator cuff is available.

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Huber, W., Hofstaetter, J.G., Hanslik-Schnabel, B. et al. Übersetzung und psychometrische Austestung des Rotator Cuff Quality-of-Life Measure (RC-QOL) für den Gebrauch im deutschen Sprachraum. Z. Rheumatol. 64, 188–197 (2005). https://doi.org/10.1007/s00393-005-0646-3

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