The European Organization for Research and Treatment of Cancer QLQ-C30: a quality-of-life instrument for use in international clinical trials in oncology.

@article{Aaronson1993TheEO,
  title={The European Organization for Research and Treatment of Cancer QLQ-C30: a quality-of-life instrument for use in international clinical trials in oncology.},
  author={Neil K. Aaronson and Sam H Ahmedzai and Bengt Bergman and Monika Bullinger and Ann Michelle Cull and Nicole J Duez and Antonio Filiberti and Henning Flechtner and Stewart B. Fleishman and J.C.J.M. de Haes},
  journal={Journal of the National Cancer Institute},
  year={1993},
  volume={85 5},
  pages={
          365-76
        }
}
BACKGROUND In 1986, the European Organization for Research and Treatment of Cancer (EORTC) initiated a research program to develop an integrated, modular approach for evaluating the quality of life of patients participating in international clinical trials. PURPOSE We report here the results of an international field study of the practicality, reliability, and validity of the EORTC QLQ-C30, the current core questionnaire. The QLQ-C30 incorporates nine multi-item scales: five functional scales… 
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