An internadional field study of the reliability and validity of a disease-specfic questionnanire module (the QLQ-MY20) in assessing the quality of life of patients with multiple myeloma
Aim: To test the reliability, validity and sensitivity of the European Organisation for Research and Treatment of Cancer (EORTC) QLQ-MY24 questionnaire, designed to assess the quality of life of myeloma patients with the QLQ-C30. Methods: The study was carried out through the EORTC Quality of Life Group using clinical trials in seven countries. All trials used the QLQ-C30 and QLQ-MY24 at baseline
