Validity and feasibility of the self-report EQ-5D-Y as a generic Health-Related Quality of Life outcome measure in children and adolescents with Juvenile Idiopathic Arthritis in Western Cape, South Africa.

The study had a small sample: 64 participants after two withdrawals, and the authors state this may have reduced the power to detect relationships. Most participants had mild disease: 54 were mild and 10 were moderate, and a single severe participant was excluded from analysis, so the findings may not apply to children with severe JIA. The paper reports 64 participants, 54 mild and 10 moderate, but also says a single severe participant was excluded from analysis; the number actually analysed is unclear. Only English-speaking children aged 8 to 15 years who had passed at least 2 years of formal schooling were included, so younger children, non-English speakers, and children with poor cognitive function or communication difficulties were not tested. Seven participants were recruited through an information-sharing session that included exercise, dancing, yoga, and peer discussion; the authors state this positive experience may have inflated short-term quality-of-life reporting. The study compared mild and moderate groups during one data-collection period; it did not test whether changes in EQ-5D-Y scores track real clinical change over time. Completion time was not recorded for 8 questionnaires. The absence of missing responses may not reflect routine clinic use because the authors reminded participants to complete all questions.

Do not conclude that the EQ-5D-Y is a complete replacement for disease-specific outcome measures in JIA. It was quick and mostly aligned with JAMAR dimensions, but it did not correspond well with PedsQL except pain and did not show a significant difference for anxiety, so longer assessment may still be needed when symptoms worsen.