| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 7520380 | Journal of Clinical Epidemiology | 2016 | 10 Pages |
Abstract
Our results provide empirical support for a measurement model for the QLQ-C30 yielding a single summary score. The availability of this summary score can avoid problems with potential type I errors that arise because of multiple testing when making comparisons based on the 15 outcomes generated by this questionnaire and may reduce sample size requirements for health-related quality of life studies using the QLQ-C30 questionnaire when an overall summary score is a relevant primary outcome.
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Authors
Johannes M. Giesinger, Jacobien M. Kieffer, Peter M. Fayers, Mogens Groenvold, Morten Aa. Petersen, Neil W. Scott, Mirjam A.G. Sprangers, Galina Velikova, Neil K. Aaronson, EORTC Quality of Life Group EORTC Quality of Life Group,