Inclusion criteria, exclusion criteria and study summary
The European Organisation of Research and Treatment of Cancer’s Quality of Life Group (EORTC QLG) has developed a four-phase framework that can be used to develop and validate quality of life questionnaires for individuals with cancer. These are developed as modules to supplement their existing EORTC core quality of life questionnaire, the ‘QLQ-C30’. For example, modules have previously been developed for endometrial cancer (QLQEN24), bone metastases (QLQ-BM22), and cancer-related fatigue (QLQ-FA12). The four-phase approach comprises a literature review followed by interviews with patients and clinicians (Phase 1), construction of a questionnaire (Phase 2), refinement of the questionnaire (Phase 3), and finally administration of the questionnaire to an international sample in a full validation study (Phase 4). The present study aims to contribute to the development of a module designed to measure quality of life in cancer survivors (i.e. those that are > 1 year post-diagnosis and have a good prognosis). The study aims to undertake Phase 4 of the above module development process.