Evidence-based guidelines for interpreting change scores for the European Organisation for the Research and Treatment of Cancer Quality of Life Questionnaire Core 30.

@article{Cocks2012EvidencebasedGF,
  title={Evidence-based guidelines for interpreting change scores for the European Organisation for the Research and Treatment of Cancer Quality of Life Questionnaire Core 30.},
  author={Kim Cocks and Madeleine T King and Galina Velikova and Gilberto de Castro and Marrissa Martyn St-James and Peter M. Fayers and Julia M. B. Brown},
  journal={European journal of cancer},
  year={2012},
  volume={48 11},
  pages={1713-21}
}
AIM To use published literature and experts' opinion to investigate the clinical meaning and magnitude of changes in the Quality of Life (QOL) of groups of patients measured with the European Organisation for the Research and Treatment of Cancer Quality of Life Questionnaire Core 30 (EORTC QLQ-C30). METHODS An innovative method combining systematic review of published studies, expert opinions and meta-analysis was used to estimate large, medium, and small mean changes over time for QLQ-C30… CONTINUE READING

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