The EORTC QLQ-C30 is a questionnaire developed to assess the quality of life of cancer patients.

It is a copyrighted instrument, which has been translated and tested in over 120 languages and has been used in more than 3,000 studies worldwide. The QLQ-C30 Version 3.0 is the most recent version and should be used for all new studies.

Two other core questionnaires (derived from the EORTC QLQ-C30) are available: the EORTC QLQ-C15-PAL (a shorter version for use with palliative cancer care patients) and the EORTC QLQ-F17 (a version that includes only the functional scales and the Global Health Status / Quality of Life scale of the EORTC QLQ-C30).

Our Core Questionnaires