Zusammenfassung. Der Beitrag berichtet über die teststatistische Prüfung und Normierung der deutschen Versionen des EUROHIS-QOL 8 Item Index (EUROHIS-QOL) zur Erfassung der generischen Lebensqualität und des Wohlbefindens-Index der WHO (WHO-5) zur Erfassung der Wohlbefindens aus Sicht der Befragten. Datengrundlage bildet eine repräsentative Stichprobe der bundesdeutschen Bevölkerung aus dem Jahr 2004. Die teststatistische Prüfung verweist auf gute psychometrische Eigenschaften des EUROHIS-QOL Index. Obgleich Modifikationsmöglichkeiten bestehen, wird die Selektion von Items ausgeschlossen, weil dies den komzeptuellen Vorgaben der Indexkonstruktion widersprechen würde. Die Ergebnisse der teststatistischen Prüfung des WHO-5 sind hinsichtlich der psychometrischen Eigenschaften als ausgezeichnet einzuschätzen. Erstmals werden geschlechts- und altersgruppenspezifische Normwerte für die deutschsprachigen Versionen der beiden Instrumente vorgelegt.
The EORTC Quality of Life Core Questionnaire QLQ-C30 is widely used, but no reference values are available for patients receiving HSCT. We retrieved data for 38 samples from 33 papers in English and German that provided evaluable information on QLQ-C30 scores (mean, s.d.) covering about 2800 patients. Results are presented as a table that provides reference data that allow QLQ-C30 scores at different points during the disease trajectory to be put in context. With respect to their central tendency and their variance, scores vary over time. Quality of life is lowest during inpatient time. About 1 year after HSCT, the pre-transplant level is reached. Physical functioning is the scale reaching the highest level of all scales. Fatigue, dyspnoea and insomnia are symptoms that remain at an elevated level and should thus be considered as persisting problems after HSCT. For the interpretation of differences between scores, a very conservative recommendation would be to set the s.d. at 30 points. Doing so, one could be quite sure of having found a clinically significant change if the difference of two scores exceeds 15 points. Differences below 5 points should be interpreted with caution.
BackgroundChronic stress results from an imbalance of personal traits, resources and the demands placed upon an individual by social and occupational situations. This chronic stress can be measured using the Trier Inventory for Chronic Stress (TICS). Aims of the present study are to test the factorial structure of the TICS, report its psychometric properties, and evaluate the influence of gender and age on chronic stress.MethodsThe TICS was answered by N = 2,339 healthy participants aged 14 to 99. The sample was selected by random-route sampling. Exploratory factor analyses with Oblimin-rotated Principal Axis extraction were calculated. Confirmatory factor analyses applying Robust Maximum Likelihood estimations (MLM) tested model fit and configural invariance as well as the measurement invariance for gender and age. Reliability estimations and effect sizes are reported.ResultsIn the exploratory factor analyses, both a two-factor and a nine-factor model emerged. Confirmatory factor analyses resulted in acceptable model fit (RMSEA), with model comparison fit statistics corroborating the superiority of the nine-factor model. Most factors were moderately to highly intercorrelated. Reliabilities were good to very good. Measurement invariance tests gave evidence for differential effects of gender and age on the factor structure. Furthermore, women and younger individuals, especially those aged 35 to 44, tended to report more chronic stress than men and older individuals.ConclusionsThe proposed nine-factor structure could be factorially validated, results in good scale reliability, and heuristically can be grouped by two higher-order factors: "High Demands" and "Lack of Satisfaction". Age and gender represent differentiable and meaningful contributors to the perception of chronic stress.
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