Analysis of Ceiling and Floor Effects of QLU-C10D and EQ-5D-5L in Breast Cancer Patients

Tables 2 and 3 present the ceiling and floor effects of QLU-C10D and EQ-5D-5L overall and for each dimension. Among breast cancer patients who completed the EQ-5D-5L, the highest proportion of individuals reporting no problems was observed in Self-care, at 53.6%, followed by Mobility at 48.5%, Usual activities at 39.2%, and Pain/Discomfort with the lowest proportion at 18.6%. However, in QLU-C10D, the proportion of individuals selecting no problems for Pain was slightly higher at 23.6% compared to EQ-5D-5L. The highest proportion of individuals reporting no problems for Nausea was 41.4%, and the lowest proportion for Physical was 13.9%. The dimensions specific to QLU-C10D, Insomnia and Appetite loss, exhibited an equal proportion of individuals reporting no problems at 28.7%.