Quality-of-Life Assessment in Pediatric Advanced Cancer: Development of the Patient-Reported Outcome Measure Advance QoL .

A recent measure was developed to assess the Quality of Life (QoL) of young people with advanced cancer and is available for parents and professionals ( Advance QoL ). The present study aimed to elaborate self-reported versions for children and adolescents with advanced cancer. We adopted a four-phase research plan: (1) to elaborate the Advance QoL questionnaire for youth (8-12 and 13-18 years old) with a team of young research partners; (2) to evaluate the understandability of these versions in a sample of 12 young patients from the target population using cognitive interviews; (3) to assess social validity in the same group using a questionnaire and the content validity index (CVI); and (4) to refine the questionnaires according to these results. Four major themes were identified: (1) issues affecting the understanding of the tool; (2) issues that did not affect the understanding of the tool; (3) modifications to improve the tool; and (4) positive features of the tool. Advance QoL was well received, and feedback was positive. Adjustments were made according to young people's comments and two self-reported versions are now available. It is essential to measure the key domains of QoL in advanced cancer. Advance QoL self-report versions will help target the specific needs of young people with this condition and their families.